Borrow the tool. Keep the audience on your site.

Invoice CSV → JSON

Turn an invoice export into readable JSON without uploading the file.

Invoice JSON → CSV

Convert structured invoice JSON into a CSV that opens cleanly in spreadsheets.

Spreadsheet Row Deduplicator

Remove exact duplicate CSV rows locally before a spreadsheet handoff.

CSV Column Profiler

See row counts, columns, blanks and unique-value counts before importing data.

Trade Export CSV Profiler

Inspect a trading or transaction CSV locally before analysis.

Competitor List Deduplicator

Remove duplicate rows from competitor and research exports in one click.

Food & Recipe CSV Cleaner

Clean tabular ingredient, menu or recipe exports locally in the browser.

YAML → JSON

Convert YAML configuration or evidence data to formatted JSON locally.

JSON → YAML

Turn JSON into readable YAML without sending configuration data to a server.

Excel / XLSX → CSV

Open a spreadsheet locally and export its first worksheet as CSV.

Excel / XLSX → JSON

Convert the first worksheet of a workbook into readable JSON without uploading the spreadsheet.

CSV → XLSX

Convert pasted CSV into an Excel workbook entirely in your browser.

Spreadsheet Sheet Inspector

See worksheet names, row estimates and sheet dimensions before importing a workbook.

Text → Gzip

Compress pasted text into a .gz file locally in your browser.

Gzip → Text

Decompress a gzip file into readable text without sending it to a server.

CSV → Bar Chart PNG

Paste two-column CSV and render a downloadable bar chart locally in your browser.

GeoJSON Area Calculator

Calculate polygon or multipolygon area in square metres locally from GeoJSON.

GeoJSON Bounding Box

Calculate west, south, east and north bounds from GeoJSON locally.

GeoJSON Centroid

Calculate a GeoJSON feature centroid locally without sending coordinates to a server.

GeoJSON Line Length

Measure a GeoJSON LineString or MultiLineString locally and return kilometres and miles.

JSONata Query Runner

Run a resource-bounded JSONata expression against pasted JSON entirely in the browser.

JSONata JSON Transformer

Transform pasted JSON into a new JSON shape using JSONata resource guardrails in this browser.

JSONPath Query Runner

Select values from pasted JSON with JSONPath Plus while JavaScript evaluation is disabled.

XML to JSON Converter

Parse pasted XML into readable JSON locally while preserving attributes and text values.

Broken JSON Repair

Repair common malformed JSON patterns locally, then verify the repaired result still parses as JSON before showing it.

Commerce CSV Cleaner

Trim cells and remove empty rows from product or catalogue CSV exports.

Product Image Compressor

Shrink product images before storefront upload without a server round trip.

Product Barcode Generator

Generate a Code 128 barcode for a SKU, product ID or inventory reference.

EAN-13 Barcode Generator

Generate a retail EAN-13 barcode locally from a valid 12- or 13-digit value.

Product Barcode Image Reader

Read a photographed product barcode locally before catalogue or inventory work.

Product Image Cropper

Crop product imagery locally before a storefront or catalogue upload.

Vendor Spend CSV Cleaner

Clean vendor and renewal exports before spend review or reconciliation.

EPR Submission CSV Profiler

Inspect columns, blanks and cardinality in an EPR working file before submission.

Booking Export CSV Cleaner

Clean booking exports locally before reporting, reconciliation or migration.

Operations CSV Cleaner

A general local-first cleaner for operational exports and handoff files.

Incident YAML → JSON

Convert incident or compliance YAML into JSON for review and handoff.

Booking QR Generator

Create a scannable booking or check-in QR code locally.

Receipt Image OCR

Extract raw receipt text locally before expense review, reconciliation or record keeping.

Code 39 Barcode Generator

Generate a Code 39 barcode locally for inventory, labels and operational references.

Markdown Content Preview

Preview Markdown content as HTML before publishing or handing it off.

Mermaid Flowchart → SVG

Turn a Mermaid flowchart definition into a downloadable SVG in your browser.

Policy Text Change Detector

Compare two policy or contract text snapshots locally and surface changed lines.

Vendor Spend CSV → Chart

Turn a simple vendor,value CSV into a local bar chart before spend or renewal review.

Free Security Questionnaire Readiness Checklist

A free checklist for preparing evidence, owners and review boundaries before answering a customer security questionnaire or DDQ.

Free SaaS Renewal Audit Checklist

A free checklist for reviewing recurring software spend, renewal evidence and the decisions that should happen before money renews.

Free CRA Incident Readiness Checklist

A free Cyber Resilience Act incident-readiness checklist for product teams preparing human triage, evidence capture and reporting workflows.

Free AI Content Transparency Checklist

A free checklist for reviewing media provenance, C2PA information and human disclosure context before publishing or handing off content.

Free PII Redaction Review Checklist

A free human-review checklist for preparing text documents for PII redaction and checking the result before downstream sharing.

Free SBOM Buyer-Readiness Checklist

A free checklist for preparing an existing CycloneDX or SPDX SBOM for licence review and buyer due-diligence evidence.

Passport Photo Compressor

Reduce passport-photo file size locally while keeping the image on your device.

Social Image Compressor

Compress campaign and social assets locally before publishing.

Game Asset Compressor

Reduce PNG, JPEG or WebP asset size locally for browser-game builds.

Local Image Resizer

Resize an image to a maximum dimension while processing it entirely in-browser.

Image EXIF Metadata Reader

Inspect EXIF metadata such as capture time, camera data and GPS fields locally.

QR & Barcode Image Reader

Decode a QR code or common 1D/2D barcode from a local image with ZXing Browser.

Local Image Cropper

Select and export a crop locally with Cropper.js while keeping the original image on your device.

Passport Photo Cropper

Crop a passport-photo candidate locally before size and compliance checks.

Exact Image Resizer

Resize a local image to exact pixel dimensions with Pica and download the result without uploading it.

Image Max-Width Resizer

Downscale a local image to a maximum width while preserving its aspect ratio with Pica.

Image Percentage Resizer

Downscale a local image by a chosen percentage with Pica while preserving aspect ratio.

Evidence Photo Compressor

Shrink field evidence photos locally before attaching them to a record.

Insurance Proof PDF Merger

Merge inventory and handover proof PDFs locally for a claim or handoff pack.

Inspection QR Generator

Create a QR code for an inspection ID, equipment URL or field record.

Property Handover QR Generator

Generate a QR code for a property meter or handover evidence record.

Referee Match QR Generator

Generate a QR code for a match record, report or handoff URL.

Service Passport QR Generator

Generate a QR code for a service passport or equipment history record.

Stage Cue QR Generator

Create a QR code for rehearsal cues, SFX sheets or backstage handoffs.

Hair Formula QR Generator

Create a local QR code for a formula record or client handoff URL.

Construction Log QR Generator

Create a QR code for a daily log, site record or evidence URL.

Field Evidence OCR

Turn a photographed label, meter, note or evidence image into selectable text.

Asset Barcode Generator

Generate a scannable Code 128 label for equipment or evidence records.

Evidence Photo Metadata Check

Inspect available EXIF fields before using a photo as evidence or a handoff record.

Field QR / Barcode Reader

Decode a photographed field QR code or barcode without uploading the image.

Evidence Photo Cropper

Crop a field evidence photo locally while keeping the original file on your device.

Evidence PDF Merger

Merge multiple evidence PDFs locally into one handoff pack.

Incident Evidence PDF Merger

Combine incident evidence into one PDF without uploading documents.

Invoice PDF Merger

Combine invoice PDFs locally into one review file.

PDF Page Extractor

Extract selected pages into a new PDF in your browser.

PDF Page Counter

Count PDF pages locally without uploading the document.

Image OCR → Text

Extract text from a photo or screenshot in your browser using Tesseract.js.

Invoice Image OCR

Extract raw text from an invoice image locally before structured invoice processing.

ZIP File Inspector

List files, paths and uncompressed sizes inside a ZIP archive without uploading it.

Evidence ZIP Builder

Bundle selected evidence files into a ZIP locally in the browser.

Markdown → HTML

Convert Markdown into HTML locally with markdown-it.

Markdown → Plain Text

Render Markdown safely and extract readable plain text for reuse or publishing handoff.

Mermaid Diagram → SVG

Render Mermaid diagram source into an SVG locally with strict security settings.

Mermaid Sequence Diagram → SVG

Render a Mermaid sequence diagram locally for architecture, integration and handoff documentation.

Line-by-Line Text Diff

Compare two text versions locally and see additions, removals and unchanged lines.

Word-by-Word Text Diff

Compare two versions of text locally at word level before approval or handoff.

Remove Pages from PDF

Remove selected pages from a PDF locally and download the remaining pages as a new PDF.

Reorder PDF Pages

Reorder every page in a PDF by entering the new page sequence, with no upload or account.

Reverse PDF Page Order

Reverse the full page order of a PDF locally in one click.

Extract Odd PDF Pages

Create a new PDF containing pages 1, 3, 5 and so on, processed entirely in your browser.

Extract Even PDF Pages

Create a new PDF containing pages 2, 4, 6 and so on without uploading the document.

Split PDF at Page

Split one PDF into two PDFs at a chosen page boundary locally in the browser.

Extract First PDF Pages

Keep only the first N pages of a PDF and download them as a new file.

Extract Last PDF Pages

Keep only the last N pages of a PDF locally and download a new file.

Duplicate PDF Pages

Append copies of selected pages to the end of a PDF without sending the document to a server.

Rotate PDF Pages

Rotate selected PDF pages by 90, 180 or 270 degrees and save a new PDF locally.

Cron Expression Explainer

Turn a standard cron expression into a human-readable schedule without creating an account.

Quartz Cron Expression Explainer

Explain six- or seven-part Quartz cron schedules, including common special characters.

JavaScript Beautifier

Reformat minified or compressed JavaScript into readable indentation in the browser.

CSS Beautifier

Reformat compact CSS into readable blocks and indentation without uploading the stylesheet.

HTML Beautifier

Format compact HTML into readable indentation locally in your browser.

SQL Formatter

Pretty-print standard SQL locally in your browser with a pinned open-source formatter.

PostgreSQL SQL Formatter

Format PostgreSQL queries with dialect-aware parsing locally in your browser.

MySQL SQL Formatter

Format MySQL queries locally with dialect-specific SQL Formatter rules.

SQLite SQL Formatter

Format SQLite statements locally in the browser without uploading query text.

BigQuery SQL Formatter

Format Google BigQuery SQL with a dialect-aware browser formatter.

Snowflake SQL Formatter

Pretty-print Snowflake SQL locally using the pinned SQL Formatter browser build.

DuckDB SQL Formatter

Format DuckDB SQL statements locally in your browser.

Amazon Redshift SQL Formatter

Format Amazon Redshift SQL locally with dialect-aware rules.

Spark SQL Formatter

Format Apache Spark SQL locally in the browser without signup.

SQL Server T-SQL Formatter

Format Microsoft SQL Server Transact-SQL locally using the pinned browser runtime.

JSON Schema Validator

Validate pasted JSON against a pasted JSON Schema locally with Ajv, with bounded input and no remote schema fetching.

API Payload JSON Schema Checker

Check a sample API JSON payload against your own local schema before integration or handoff.

XML Syntax Validator

Check whether pasted XML is well-formed using fast-xml-parser without uploading the document.

XML Structure Inspector

Inspect the root element, namespaces, element counts and common tag names of pasted XML locally.

HTML Linter

Lint pasted HTML locally for common structural and markup-quality problems using HTMLHint.

Domain & Public Suffix Inspector

Parse a URL or hostname into hostname, registrable domain, public suffix and subdomain using tldts and the Public Suffix List model instead of guessing from the last two labels.

JWT Claims Inspector

Decode a compact JWT protected header and payload locally with jose, then summarize common time claims without pretending that decoding verifies the signature.

Data URI Validator

Check whether pasted text follows data: URI syntax locally in the browser.

IPv4 Address Validator

Check whether pasted text is specifically a valid IPv4 address.

IPv6 Address Validator

Check whether pasted text is specifically a valid IPv6 address.

MD5 Hash Syntax Validator

Check whether a string has MD5 hash syntax. This does not establish integrity or cryptographic safety.

SHA-1 Hash Syntax Validator

Check whether a string has SHA-1 hash syntax. This does not establish integrity or cryptographic safety.

SHA-256 Hash Syntax Validator

Check whether a string has SHA-256 hexadecimal hash syntax.

SHA-512 Hash Syntax Validator

Check whether a string has SHA-512 hexadecimal hash syntax.

IP Range Validator

Check whether pasted text is valid IPv4 or IPv6 CIDR range syntax.

JSON String Validator

Check whether pasted text is valid JSON using validator.js 13.15.35 rules.

JWT Structure Validator

Check whether pasted text has JSON Web Token structure. This does not verify signatures, claims or trust.

Magnet URI Validator

Check whether pasted text follows magnet URI syntax.

Mailto URI Validator

Check whether pasted text follows mailto: URI syntax locally.

YAML to JSON Converter

Parse one YAML document and serialize it as formatted JSON locally with js-yaml.

JSON to YAML Converter

Parse JSON and serialize it as readable YAML locally with js-yaml.

YAML Validator

Validate one or more bounded YAML documents locally with js-yaml and report the document count or parse error.

YAML Multi-Document to JSON

Parse multiple YAML documents separated by document markers and return a JSON array locally with js-yaml.

YAML Key Inspector

Inspect top-level keys and value kinds in one YAML document locally without executing user content.

HTML Entity Encoder

Encode Unicode text into safe HTML character references locally in your browser.

HTML Entity Decoder

Decode named and numeric HTML entities into readable Unicode text in your browser.

HTML Text Escaper

Escape unsafe HTML characters in pasted text before placing it inside HTML text content.

HTML to Markdown Converter

Convert pasted HTML into clean Markdown locally in your browser with no account or upload.

HTML to ATX Markdown Converter

Convert HTML to Markdown while forcing # style ATX headings and fenced code blocks.

Markdown to HTML Source Converter

Compile Markdown into HTML source locally with Marked. Output is shown as source text and is never rendered as trusted HTML.

Email HTML Linter

Run a local HTMLHint pass over email markup before template testing or delivery-system handoff.

Full-Width Character Validator

Check whether a string contains full-width characters only.

Half-Width Character Validator

Check whether a string contains half-width characters only.

ASCII Character String Validator

Check whether every character in a string belongs to the ASCII character set.

Lowercase String Validator

Check whether all alphabetic characters in a string are lowercase.

Multibyte Character Validator

Check whether a string contains one or more multibyte characters.

Text Length 8–64 Validator

Check whether a string is between 8 and 64 characters long under validator.js length rules.

Unicode Surrogate Pair Validator

Check whether a string contains a UTF-16 surrogate pair.

UTF-8 Byte Length 1–256 Validator

Check whether a string occupies between 1 and 256 UTF-8 bytes under validator.js rules.

Uppercase String Validator

Check whether all alphabetic characters in a string are uppercase.

Variable-Width Character Validator

Check whether a string mixes full-width and half-width characters.

Word Counter

Count words in pasted text.

Character Counter

Count characters with and without spaces.

Sentence Counter

Estimate sentence count from punctuation boundaries.

Line Counter

Count lines in pasted text.

Uppercase Converter

Convert text to uppercase.

Lowercase Converter

Convert text to lowercase.

Title Case Converter

Convert text to simple title case.

Sentence Case Converter

Convert text to simple sentence case.

Kebab Case Converter

Convert words to kebab-case.

Snake Case Converter

Convert words to snake_case.

Camel Case Converter

Convert words to camelCase.

Pascal Case Converter

Convert words to PascalCase.

URL Slug Generator

Create a lowercase URL-friendly slug.

Trim Lines Tool

Trim leading and trailing whitespace on every line.

Collapse Whitespace Tool

Replace repeated whitespace with single spaces.

Remove Blank Lines Tool

Remove empty and whitespace-only lines.

Deduplicate Lines Tool

Remove duplicate lines while keeping first occurrence order.

Sort Lines Tool

Sort lines alphabetically.

Reverse Lines Tool

Reverse the order of lines.

Prefix Every Line Tool

Add the same prefix to every line.

Suffix Every Line Tool

Add the same suffix to every line.

URL Encoder

Percent-encode text for use in URLs.

URL Decoder

Decode percent-encoded URL text.

Base64 Encoder

Encode UTF-8 text as Base64 in your browser.

Base64 Decoder

Decode Base64 text as UTF-8 in your browser.

HTML Escape Tool

Escape ampersands, angle brackets and quotes for HTML text contexts.

HTML Unescape Tool

Decode common HTML entities back to text.

JSON Formatter

Parse and pretty-print JSON.

JSON Minifier

Parse JSON and output compact JSON.

JSON Validator

Check whether pasted text is valid JSON.

DMARC TXT Record Inspector

Inspect a pasted DMARC TXT record locally and surface common policy and reporting fields.

Email Address Validator

Check whether a string has valid email-address syntax using validator.js in the browser.

URL Validator

Check whether a pasted string is a syntactically valid URL without sending it to a server.

UUID Validator

Validate UUID text locally in your browser across standard UUID versions.

IP Address Validator

Check whether a string is a valid IPv4 or IPv6 address locally in the browser.

Slug Validator

Check whether text already matches validator.js slug syntax before using it in a URL path.

Domain Name Validator

Validate a fully qualified domain name string locally with validator.js.

Base64 Validator

Check whether pasted text is valid Base64 syntax in the browser without decoding or uploading it.

JWT Syntax Validator

Check JWT compact-string syntax locally. This does not verify a signature, issuer, audience or token trust.

ISO 8601 Date Validator

Check whether a pasted date/time string follows ISO 8601 syntax locally.

MAC Address Validator

Check common MAC-address syntax locally in the browser.

MIME Type Validator

Check MIME-type string syntax locally before using it in metadata or HTTP workflows.

Hex Colour Validator

Check whether a pasted value is valid hexadecimal colour syntax.

ISBN Validator

Validate ISBN-10 or ISBN-13 syntax and checksum locally in the browser.

ULID Validator

Check whether a pasted value follows the ULID identifier format supported by validator.js.

Base32 String Validator

Check whether a pasted string follows validator.js Base32 encoding syntax locally.

Base58 String Validator

Check whether a pasted string uses the Base58 alphabet accepted by validator.js.

BIC / SWIFT Syntax Validator

Check whether a pasted value follows BIC or SWIFT code syntax. This does not prove a bank or account is genuine.

Data URI Syntax Validator

Check whether a pasted value follows data URI syntax locally without fetching the embedded resource.

EAN Barcode Validator

Validate EAN barcode syntax and checksum locally with validator.js.

Ethereum Address Syntax Validator

Check Ethereum address syntax locally. validator.js does not validate mixed-case address checksums.

IP Range / CIDR Validator

Check IPv4 or IPv6 range syntax locally with validator.js.

ISIN Code Validator

Validate International Securities Identification Number syntax and checksum locally.

ISO 6346 Shipping Container Validator

Validate ISO 6346 shipping-container identification syntax and check digit locally.

ISO 639-1 Language Code Validator

Check whether a two-letter language code is valid ISO 639-1 syntax supported by validator.js.

JSON Object / Array Validator

Check whether pasted text is valid JSON object or array syntax locally with validator.js.

Latitude / Longitude Validator

Validate a decimal latitude-longitude pair in lat,long form locally.

MongoDB ObjectId Validator

Check whether a pasted value is a valid hexadecimal MongoDB ObjectId representation.

Network Port Validator

Check whether a pasted value is a valid TCP/UDP port number string.

Semantic Version Validator

Check whether a pasted version follows the Semantic Versioning specification supported by validator.js.

ASCII String Validator

Check whether pasted text contains ASCII characters only, locally in the browser.

Boolean String Validator

Check strict validator.js boolean-string syntax locally. Accepted defaults include true, false, 0 and 1.

Bitcoin Address Validator

Check whether a pasted Bitcoin address matches validator.js address syntax. This does not prove ownership, control, balance or transaction safety.

Hexadecimal String Validator

Check whether a pasted value is a valid hexadecimal-number string.

HSL Colour Validator

Check CSS HSL or HSLA colour syntax locally using validator.js.

ISO 15924 Script Code Validator

Check whether a four-letter script code is officially assigned under ISO 15924.

ISO 3166-1 Alpha-2 Country Code Validator

Check whether a two-letter country code is officially assigned under ISO 3166-1 alpha-2.

ISO 3166-1 Alpha-3 Country Code Validator

Check whether a three-letter country code is officially assigned under ISO 3166-1 alpha-3.

ISO 3166-1 Numeric Country Code Validator

Check whether a three-digit country code is officially assigned under ISO 3166-1 numeric.

ISRC Code Validator

Check International Standard Recording Code syntax locally with validator.js.

ISSN Validator

Validate International Standard Serial Number syntax and checksum locally with validator.js.

Octal String Validator

Check whether a pasted value is valid octal-number syntax.

RFC 3339 Date & Time Validator

Check whether a pasted date-time follows RFC 3339 syntax locally in the browser.

RGB / RGBA Colour Validator

Check CSS rgb() or rgba() colour syntax locally using validator.js.

Latin Letter String Validator

Check whether a string contains letters only under validator.js English rules.

Alphanumeric String Validator

Check whether a string contains letters and numbers only under validator.js English rules.

Crockford Base32 Validator

Check whether pasted text matches Crockford Base32 syntax locally in the browser.

URL-Safe Base64 Validator

Check URL-safe Base64 syntax without uploading or decoding the value.

UUID v4 Validator

Check whether pasted text is specifically a version 4 UUID.

Date String Validator

Check whether a pasted value is accepted by validator.js date validation.

Decimal Number String Validator

Check whether a pasted value represents a decimal number under validator.js default rules.

Empty String Validator

Check whether the supplied string is empty under validator.js default rules.

Float Number String Validator

Check whether pasted text is a floating-point number under validator.js default rules.

IMEI Syntax Validator

Check IMEI syntax and checksum locally. Use a fictional or test value rather than a real device identifier.

ISBN-10 Validator

Validate ISBN-10 syntax and checksum locally with validator.js.

ISBN-13 Validator

Validate ISBN-13 syntax and checksum locally with validator.js.

ISO 8601 Date & Time Validator

Check whether a pasted date or date-time follows ISO 8601 syntax.

Divisible by 3 Validator

Check whether a numeric string is divisible by 3 using validator.js.

Locale Code Validator

Check whether a locale string is recognised by validator.js.

Luhn Number Validator

Check whether a numeric string passes the Luhn checksum algorithm. This does not verify any account or card.

ISO 639-1 Language Code Validator

Check whether a two-letter language code is assigned under ISO 639-1.

Date After 2000 Validator

Check whether a date string falls after 1 January 2000 using validator.js.

Numeric String Validator

Check whether pasted text is numeric under validator.js default rules.

Date Before 2100 Validator

Check whether a date string falls before 1 January 2100 using validator.js.

Time String Validator

Check whether a pasted value is accepted by validator.js time validation.

Integer String Validator

Check whether pasted text represents an integer under validator.js default rules.

IBAN Format Validator

Check IBAN structure and checksum locally. This checks format only and does not verify that a bank account exists.

UBL Invoice XML Inspector

Inspect common UBL invoice structure and fields locally before deeper e-invoice validation or remediation.

ISO 4217 Currency Code Validator

Check whether a three-letter currency code is officially assigned under ISO 4217.

ABA Routing Number Validator

Check the checksum and syntax of a US ABA routing number locally with validator.js.

Currency Amount String Validator

Check common currency-amount formatting with validator.js default rules.

ISO 6346 Freight Container Code Validator

Check whether a freight-container owner/equipment/serial/check-digit code follows ISO 6346 rules.

ISIN Validator

Check International Securities Identification Number syntax and checksum locally.

UK Postcode Syntax Validator

Check whether pasted text follows validator.js United Kingdom postal-code syntax. This does not verify an address.

PDF Text Extractor

Extract the existing text layer from a local PDF in your browser with PDF.js, with explicit file, page and output limits and no upload to a Solarc extraction API.

CSS Color Parser

Parse a CSS colour string into its structured colour-space channels locally with Culori.

CSS Color to HEX Converter

Convert a supported CSS colour value to a clamped hexadecimal colour locally in your browser.

CSS Color to RGB Converter

Convert a supported CSS colour value to an RGB or RGBA string locally with Culori.

CSS Color to HSL Converter

Convert a supported CSS colour value to HSL or HSLA locally with Culori.

CSS Color to OKLab Converter

Convert a supported CSS colour value to CSS Color 4 OKLab notation locally.

CSS Color to OKLCH Converter

Convert a supported CSS colour value to CSS Color 4 OKLCH notation locally.

CSS Color to Lab Converter

Convert a supported CSS colour value to CIELAB notation locally with Culori.

CSS Color to LCH Converter

Convert a supported CSS colour value to LCH notation locally with Culori.

High-Precision Decimal Addition

Add two decimal values locally with decimal.js using a bounded 100-significant-digit arithmetic precision.

High-Precision Decimal Subtraction

Subtract the second decimal value from the first locally with bounded high-precision arithmetic.

High-Precision Decimal Multiplication

Multiply two decimal values locally without relying on binary floating-point arithmetic.

High-Precision Decimal Division

Divide two decimal values locally using a bounded 100-significant-digit decimal precision.

High-Precision Decimal Square Root

Calculate a decimal square root locally using a bounded 100-significant-digit precision.

Decimal to Fraction Converter

Convert a decimal value to a rational numerator/denominator representation locally with decimal.js.

HTML Sanitizer

Sanitize pasted HTML locally with DOMPurify using its HTML profile. Cleaned HTML is returned as source text and is not rendered.

HTML to Safe Plain Text

Strip markup through DOMPurify and extract plain text locally without rendering untrusted HTML.

Strong Password Rule Validator

Check a test string against validator.js default strong-password rules. Do not paste a real password.

Date & Time to Unix Seconds

Convert a date/time into a Unix timestamp in seconds locally with Day.js.

Date & Time to Unix Milliseconds

Convert a date/time into Unix epoch milliseconds locally with Day.js.

Unix Seconds to ISO Date & Time

Convert Unix epoch seconds into an ISO 8601 UTC timestamp locally with Day.js.

SVG Optimizer

Run SVGO preset-default with multipass optimization on pasted SVG markup locally in your browser.

SVG Minifier

Minify SVG markup with SVGO preset-default and compact serialization without rendering the input.

SVG Prettifier

Parse and reserialize SVG markup with readable two-space formatting while leaving optimization plugins disabled.

SVG Remove Dimensions

Remove top-level SVG width and height attributes with SVGO removeDimensions, creating a viewBox when SVGO can derive one.

SVG ID Cleanup

Clean and minify SVG IDs with SVGO cleanupIds for smaller reusable vector markup.

SVG Script & Event Stripper

Strip SVG script elements, event-handler attributes and script URIs with SVGO removeScripts. This is a focused transform, not a complete sanitizer.

SVG Color Optimizer

Normalize and shorten SVG color values with SVGO convertColors while keeping the result as text.

SVG Comment Remover

Remove ordinary XML comments with SVGO while preserving legal comments according to the plugin default.

SVG ID Prefixer

Prefix SVG IDs and class names with a deterministic source-derived scope using the SVGO prefixIds plugin.

SVG Metadata Remover

Remove SVG metadata elements locally with the SVGO removeMetadata plugin.

SVG Inline Raster Image Remover

Remove inline JPEG, PNG and GIF image payloads from SVG source with the SVGO removeRasterImages plugin.

SVG Editor Data Remover

Remove editor-specific namespaces, elements and attributes with the SVGO removeEditorsNSData plugin.

SVG Path Parser

Parse an SVG path d string into structured command objects locally with svg-pathdata.

SVG Path Encoder

Parse and re-encode SVG path data into compact canonical command text.

SVG Path to Absolute Commands

Convert relative SVG path commands to absolute coordinates and re-encode the path.

SVG Path to Relative Commands

Convert absolute SVG path commands to relative coordinates and re-encode the path.

SVG Path Round to 3 Decimals

Round SVG path coordinates to three decimal places using svg-pathdata transforms.

SVG Path Normalize H/V/Z

Normalize horizontal, vertical and close-path geometry into line commands where the engine can do so safely.

SVG Path Expand Smooth Curves

Expand smooth S/T curve commands into explicit cubic/quadratic control-point commands.

SVG Quadratic to Cubic Path

Convert quadratic Q/T segments to cubic Bézier path commands locally.

SVG Arc to Cubic Path

Convert SVG elliptical arc commands to cubic Bézier segments locally.

SVG Path Reverser

Convert path commands to absolute coordinates, reverse drawing direction, and re-encode the path.

CSV to JSON Converter

Convert bounded CSV text to JSON locally with PapaParse, including header-aware parsing and visible parse errors.

JSON to CSV Converter

Convert a JSON array of records or rows to CSV locally with PapaParse; spreadsheet formula-like cell prefixes are escaped by default.

CSV to TSV Converter

Convert CSV rows to tab-separated values locally with PapaParse and escape spreadsheet formula-like output cells by default.

TSV to CSV Converter

Convert tab-separated rows to CSV locally with PapaParse and escape spreadsheet formula-like output cells by default.

CSV Delimiter Detector

Detect the delimiter PapaParse infers from a bounded delimited-text sample and show parse diagnostics.

CSV Header Inspector

Inspect parsed CSV header names, delimiter and first-record diagnostics locally with PapaParse.

CSV Column Profiler

Profile a bounded CSV sample for rows, columns, empty cells, inferred delimiter and spreadsheet-formula-like cell prefixes.

CSV Row Counter

Count non-empty parsed CSV rows locally with PapaParse without uploading the data.

Gzip Base64 Compressor

Compress UTF-8 text with gzip locally and return a portable Base64 representation.

Gzip Base64 Decompressor

Decode bounded Base64 gzip data locally with a hard decompressed-output ceiling.

Zlib Base64 Compressor

Compress UTF-8 text with zlib/DEFLATE locally and return Base64.

Zlib Base64 Decompressor

Decode bounded Base64 zlib data locally with a hard decompressed-output ceiling.

Ecommerce Tax & VAT Calculator

Add an entered tax or VAT rate to a net price, or extract the tax portion from a tax-inclusive amount.

Dimensional Weight Shipping Calculator

Compare actual package weight with dimensional weight using an editable carrier divisor.

Break-even ROAS & Max CAC Calculator

Estimate break-even ROAS, maximum CAC or CPA, and ACoS from order-level unit economics.

Free Shipping Threshold Calculator

Estimate a basket threshold that can absorb outbound shipping while preserving target contribution profit.

Winning Product Score Calculator

Score product economics, demand, trend, creative potential, saturation risk and shipping simplicity before testing.

Discount Profit Margin Calculator

See post-discount selling price, contribution profit, margin and profit lost versus full price.

Target Selling Price Calculator

Backsolve a selling price from product cost, shipping, percentage fees and target contribution margin.

Bundle Profit Margin Calculator

Calculate bundle price, customer savings, contribution profit and margin after combined product and shipping costs.

Ecommerce Blended CAC Calculator

Calculate customer acquisition cost using paid media, creative, agency and acquisition software spend.

Ecommerce Return Cost Calculator

Turn return rate into reverse-logistics, processing, inventory-loss and per-order return cost.

WooCommerce Reorder Point Calculator

Estimate a WooCommerce SKU reorder threshold, remaining inventory cover and suggested replenishment quantity from sales velocity, lead time and safety stock.

WooCommerce Payout Reconciler

Reconcile WooCommerce orders against payment or gateway transaction CSVs, isolate processing fees, unmatched rows and unexplained payout differences.

Percentage Of Calculator

Calculate what a percentage of a number equals.

Percentage Change Calculator

Calculate percentage change between an old and a new value.

Percentage Increase Calculator

Increase a value by a chosen percentage.

Percentage Decrease Calculator

Decrease a value by a chosen percentage.

Discount Price Calculator

Calculate the price after a percentage discount and the amount saved.

Markup Calculator

Calculate markup percentage from cost and selling price.

Gross Margin Calculator

Calculate gross margin percentage from cost and selling price.

Gross Profit Calculator

Calculate gross profit and gross margin from revenue and cost of goods sold.

Break-Even Units Calculator

Estimate unit volume needed to cover fixed costs.

Contribution Margin Calculator

Calculate contribution margin per unit and as a percentage.

ROI Calculator

Calculate simple return on investment from gain and cost.

ROAS Calculator

Calculate return on ad spend from attributed revenue and ad spend.

Customer Acquisition Cost Calculator

Calculate simple CAC from sales and marketing spend and new customers.

Customer Lifetime Value Calculator

Estimate simple customer lifetime value from average revenue, gross margin and lifespan.

LTV to CAC Ratio Calculator

Calculate the ratio between lifetime value and customer acquisition cost.

Customer Churn Rate Calculator

Calculate customer churn over a period from starting customers and customers lost.

Customer Retention Rate Calculator

Calculate simple customer retention from starting customers, ending customers and new customers.

MRR Calculator

Calculate monthly recurring revenue from active customers and average recurring revenue.

ARR Calculator

Convert monthly recurring revenue into annual recurring revenue.

ARPU Calculator

Calculate average revenue per user from total revenue and active users.

Conversion Rate Calculator

Calculate conversion rate from conversions and total visitors or opportunities.

Cart Abandonment Rate Calculator

Calculate cart abandonment from initiated carts and completed purchases.

Refund Rate Calculator

Calculate refund rate from refunded orders and total orders.

Commission Calculator

Calculate commission amount from a transaction value and commission rate.

Average Order Value Calculator

Calculate average order value from revenue and completed orders.

Cost Per Click Calculator

Calculate average CPC from ad spend and clicks.

CPM Calculator

Calculate cost per thousand impressions from ad spend and impressions.

Click-Through Rate Calculator

Calculate CTR from clicks and impressions.

Email Open Rate Calculator

Calculate a simple email open rate from unique opens and delivered messages.

Email Click Rate Calculator

Calculate email click rate from unique clicks and delivered messages.

Meeting Cost Calculator

Estimate the direct time cost of a meeting from attendees, duration and hourly cost.

Utilization Rate Calculator

Calculate utilization from billable or productive hours and available hours.

Team Capacity Calculator

Estimate total available team hours from people, hours per person and utilization target.

Monthly Burn Rate Calculator

Calculate simple monthly net burn from monthly cash outflow and inflow.

Cash Runway Calculator

Estimate runway from cash balance and monthly net burn.

Reorder Point Calculator

Estimate a reorder point from average daily demand, lead time and safety stock.

Inventory Turnover Calculator

Calculate inventory turnover from cost of goods sold and average inventory.

SLA Uptime Calculator

Calculate uptime percentage from total minutes and downtime minutes.

Allowed Downtime From Uptime Calculator

Calculate allowed downtime for a target uptime percentage over a chosen period.

Data Transfer Time Calculator

Estimate ideal transfer time from file size in gigabytes and link speed in megabits per second.

UK Booking Commission & No-Show Cost Calculator

Estimate booking commission and unfilled no-show exposure from your own assumptions.

Ecommerce Profit Pulse

Open an ecommerce order CSV locally, estimate contribution profit after refunds, taxes, fees, COGS, ads and fulfilment, and compare saved periods.

Centimetres to Metres Converter

Convert centimetres and metres instantly in either direction. The calculation runs entirely in your browser.

Centimetres to Kilometres Converter

Convert centimetres and kilometres instantly in either direction. The calculation runs entirely in your browser.

Centimetres to Inches Converter

Convert centimetres and inches instantly in either direction. The calculation runs entirely in your browser.

Centimetres to Feet Converter

Convert centimetres and feet instantly in either direction. The calculation runs entirely in your browser.

Centimetres to Miles Converter

Convert centimetres and miles instantly in either direction. The calculation runs entirely in your browser.

Metres to Kilometres Converter

Convert metres and kilometres instantly in either direction. The calculation runs entirely in your browser.

Metres to Inches Converter

Convert metres and inches instantly in either direction. The calculation runs entirely in your browser.

Metres to Feet Converter

Convert metres and feet instantly in either direction. The calculation runs entirely in your browser.

Metres to Miles Converter

Convert metres and miles instantly in either direction. The calculation runs entirely in your browser.

Kilometres to Inches Converter

Convert kilometres and inches instantly in either direction. The calculation runs entirely in your browser.

Kilometres to Feet Converter

Convert kilometres and feet instantly in either direction. The calculation runs entirely in your browser.

Kilometres to Miles Converter

Convert kilometres and miles instantly in either direction. The calculation runs entirely in your browser.

Inches to Feet Converter

Convert inches and feet instantly in either direction. The calculation runs entirely in your browser.

Inches to Miles Converter

Convert inches and miles instantly in either direction. The calculation runs entirely in your browser.

Feet to Miles Converter

Convert feet and miles instantly in either direction. The calculation runs entirely in your browser.

Square metres to Hectares Converter

Convert square metres and hectares instantly in either direction. The calculation runs entirely in your browser.

Square metres to Square kilometres Converter

Convert square metres and square kilometres instantly in either direction. The calculation runs entirely in your browser.

Square metres to Square feet Converter

Convert square metres and square feet instantly in either direction. The calculation runs entirely in your browser.

Square metres to Acres Converter

Convert square metres and acres instantly in either direction. The calculation runs entirely in your browser.

Hectares to Square kilometres Converter

Convert hectares and square kilometres instantly in either direction. The calculation runs entirely in your browser.

Hectares to Square feet Converter

Convert hectares and square feet instantly in either direction. The calculation runs entirely in your browser.

Hectares to Acres Converter

Convert hectares and acres instantly in either direction. The calculation runs entirely in your browser.

Square kilometres to Square feet Converter

Convert square kilometres and square feet instantly in either direction. The calculation runs entirely in your browser.

Square kilometres to Acres Converter

Convert square kilometres and acres instantly in either direction. The calculation runs entirely in your browser.

Square feet to Acres Converter

Convert square feet and acres instantly in either direction. The calculation runs entirely in your browser.

Grams to Kilograms Converter

Convert grams and kilograms instantly in either direction. The calculation runs entirely in your browser.

Grams to Ounces Converter

Convert grams and ounces instantly in either direction. The calculation runs entirely in your browser.

Grams to Pounds Converter

Convert grams and pounds instantly in either direction. The calculation runs entirely in your browser.

Grams to Stones Converter

Convert grams and stones instantly in either direction. The calculation runs entirely in your browser.

Kilograms to Ounces Converter

Convert kilograms and ounces instantly in either direction. The calculation runs entirely in your browser.

Kilograms to Pounds Converter

Convert kilograms and pounds instantly in either direction. The calculation runs entirely in your browser.

Kilograms to Stones Converter

Convert kilograms and stones instantly in either direction. The calculation runs entirely in your browser.

Ounces to Pounds Converter

Convert ounces and pounds instantly in either direction. The calculation runs entirely in your browser.

Ounces to Stones Converter

Convert ounces and stones instantly in either direction. The calculation runs entirely in your browser.

Pounds to Stones Converter

Convert pounds and stones instantly in either direction. The calculation runs entirely in your browser.

Millilitres to Litres Converter

Convert millilitres and litres instantly in either direction. The calculation runs entirely in your browser.

Millilitres to US fluid ounces Converter

Convert millilitres and us fluid ounces instantly in either direction. The calculation runs entirely in your browser.

Millilitres to US cups Converter

Convert millilitres and us cups instantly in either direction. The calculation runs entirely in your browser.

Millilitres to Imperial pints Converter

Convert millilitres and imperial pints instantly in either direction. The calculation runs entirely in your browser.

Millilitres to Imperial gallons Converter

Convert millilitres and imperial gallons instantly in either direction. The calculation runs entirely in your browser.

Litres to US fluid ounces Converter

Convert litres and us fluid ounces instantly in either direction. The calculation runs entirely in your browser.

Litres to US cups Converter

Convert litres and us cups instantly in either direction. The calculation runs entirely in your browser.

Litres to Imperial pints Converter

Convert litres and imperial pints instantly in either direction. The calculation runs entirely in your browser.

Litres to Imperial gallons Converter

Convert litres and imperial gallons instantly in either direction. The calculation runs entirely in your browser.

US fluid ounces to US cups Converter

Convert us fluid ounces and us cups instantly in either direction. The calculation runs entirely in your browser.

US fluid ounces to Imperial pints Converter

Convert us fluid ounces and imperial pints instantly in either direction. The calculation runs entirely in your browser.

US fluid ounces to Imperial gallons Converter

Convert us fluid ounces and imperial gallons instantly in either direction. The calculation runs entirely in your browser.

US cups to Imperial pints Converter

Convert us cups and imperial pints instantly in either direction. The calculation runs entirely in your browser.

US cups to Imperial gallons Converter

Convert us cups and imperial gallons instantly in either direction. The calculation runs entirely in your browser.

Imperial pints to Imperial gallons Converter

Convert imperial pints and imperial gallons instantly in either direction. The calculation runs entirely in your browser.

Metres per second to Kilometres per hour Converter

Convert metres per second and kilometres per hour instantly in either direction. The calculation runs entirely in your browser.

Metres per second to Miles per hour Converter

Convert metres per second and miles per hour instantly in either direction. The calculation runs entirely in your browser.

Metres per second to Knots Converter

Convert metres per second and knots instantly in either direction. The calculation runs entirely in your browser.

Kilometres per hour to Miles per hour Converter

Convert kilometres per hour and miles per hour instantly in either direction. The calculation runs entirely in your browser.

Kilometres per hour to Knots Converter

Convert kilometres per hour and knots instantly in either direction. The calculation runs entirely in your browser.

Miles per hour to Knots Converter

Convert miles per hour and knots instantly in either direction. The calculation runs entirely in your browser.

Kilopascals to Bar Converter

Convert kilopascals and bar instantly in either direction. The calculation runs entirely in your browser.

Kilopascals to Pounds per square inch Converter

Convert kilopascals and pounds per square inch instantly in either direction. The calculation runs entirely in your browser.

Kilopascals to Standard atmospheres Converter

Convert kilopascals and standard atmospheres instantly in either direction. The calculation runs entirely in your browser.

Bar to Pounds per square inch Converter

Convert bar and pounds per square inch instantly in either direction. The calculation runs entirely in your browser.

Bar to Standard atmospheres Converter

Convert bar and standard atmospheres instantly in either direction. The calculation runs entirely in your browser.

Pounds per square inch to Standard atmospheres Converter

Convert pounds per square inch and standard atmospheres instantly in either direction. The calculation runs entirely in your browser.

Joules to Kilojoules Converter

Convert joules and kilojoules instantly in either direction. The calculation runs entirely in your browser.

Joules to Kilowatt-hours Converter

Convert joules and kilowatt-hours instantly in either direction. The calculation runs entirely in your browser.

Joules to Kilocalories Converter

Convert joules and kilocalories instantly in either direction. The calculation runs entirely in your browser.

Joules to British thermal units Converter

Convert joules and british thermal units instantly in either direction. The calculation runs entirely in your browser.

Kilojoules to Kilowatt-hours Converter

Convert kilojoules and kilowatt-hours instantly in either direction. The calculation runs entirely in your browser.

Kilojoules to Kilocalories Converter

Convert kilojoules and kilocalories instantly in either direction. The calculation runs entirely in your browser.

Kilojoules to British thermal units Converter

Convert kilojoules and british thermal units instantly in either direction. The calculation runs entirely in your browser.

Kilowatt-hours to Kilocalories Converter

Convert kilowatt-hours and kilocalories instantly in either direction. The calculation runs entirely in your browser.

Kilowatt-hours to British thermal units Converter

Convert kilowatt-hours and british thermal units instantly in either direction. The calculation runs entirely in your browser.

Kilocalories to British thermal units Converter

Convert kilocalories and british thermal units instantly in either direction. The calculation runs entirely in your browser.

Watts to Kilowatts Converter

Convert watts and kilowatts instantly in either direction. The calculation runs entirely in your browser.

Watts to Mechanical horsepower Converter

Convert watts and mechanical horsepower instantly in either direction. The calculation runs entirely in your browser.

Kilowatts to Mechanical horsepower Converter

Convert kilowatts and mechanical horsepower instantly in either direction. The calculation runs entirely in your browser.

Bytes to Kilobytes Converter

Convert bytes and kilobytes instantly in either direction. The calculation runs entirely in your browser.

Bytes to Megabytes Converter

Convert bytes and megabytes instantly in either direction. The calculation runs entirely in your browser.

Bytes to Gigabytes Converter

Convert bytes and gigabytes instantly in either direction. The calculation runs entirely in your browser.

Bytes to Terabytes Converter

Convert bytes and terabytes instantly in either direction. The calculation runs entirely in your browser.

Kilobytes to Megabytes Converter

Convert kilobytes and megabytes instantly in either direction. The calculation runs entirely in your browser.

Kilobytes to Gigabytes Converter

Convert kilobytes and gigabytes instantly in either direction. The calculation runs entirely in your browser.

Kilobytes to Terabytes Converter

Convert kilobytes and terabytes instantly in either direction. The calculation runs entirely in your browser.

Megabytes to Gigabytes Converter

Convert megabytes and gigabytes instantly in either direction. The calculation runs entirely in your browser.

Megabytes to Terabytes Converter

Convert megabytes and terabytes instantly in either direction. The calculation runs entirely in your browser.

Gigabytes to Terabytes Converter

Convert gigabytes and terabytes instantly in either direction. The calculation runs entirely in your browser.

Seconds to Minutes Converter

Convert seconds and minutes instantly in either direction. The calculation runs entirely in your browser.

Seconds to Hours Converter

Convert seconds and hours instantly in either direction. The calculation runs entirely in your browser.

Seconds to Days Converter

Convert seconds and days instantly in either direction. The calculation runs entirely in your browser.

Seconds to Weeks Converter

Convert seconds and weeks instantly in either direction. The calculation runs entirely in your browser.

Minutes to Hours Converter

Convert minutes and hours instantly in either direction. The calculation runs entirely in your browser.

Minutes to Days Converter

Convert minutes and days instantly in either direction. The calculation runs entirely in your browser.

Minutes to Weeks Converter

Convert minutes and weeks instantly in either direction. The calculation runs entirely in your browser.

Hours to Days Converter

Convert hours and days instantly in either direction. The calculation runs entirely in your browser.

Hours to Weeks Converter

Convert hours and weeks instantly in either direction. The calculation runs entirely in your browser.

Days to Weeks Converter

Convert days and weeks instantly in either direction. The calculation runs entirely in your browser.

Degrees to Radians Converter

Convert degrees and radians instantly in either direction. The calculation runs entirely in your browser.

Hertz to Kilohertz Converter

Convert hertz and kilohertz instantly in either direction. The calculation runs entirely in your browser.

Hertz to Megahertz Converter

Convert hertz and megahertz instantly in either direction. The calculation runs entirely in your browser.

Hertz to Gigahertz Converter

Convert hertz and gigahertz instantly in either direction. The calculation runs entirely in your browser.

Kilohertz to Megahertz Converter

Convert kilohertz and megahertz instantly in either direction. The calculation runs entirely in your browser.

Kilohertz to Gigahertz Converter

Convert kilohertz and gigahertz instantly in either direction. The calculation runs entirely in your browser.

Megahertz to Gigahertz Converter

Convert megahertz and gigahertz instantly in either direction. The calculation runs entirely in your browser.

Celsius to Fahrenheit Converter

Convert celsius and fahrenheit instantly in either direction. The calculation runs entirely in your browser.

Celsius to Kelvin Converter

Convert celsius and kelvin instantly in either direction. The calculation runs entirely in your browser.

Fahrenheit to Kelvin Converter

Convert fahrenheit and kelvin instantly in either direction. The calculation runs entirely in your browser.

Megabits per second to Gigabits per second Converter

Convert megabits per second and gigabits per second instantly in either direction. The calculation runs entirely in your browser.

Megabits per second to Megabytes per second Converter

Convert megabits per second and megabytes per second instantly in either direction. The calculation runs entirely in your browser.

Megabits per second to Gigabytes per second Converter

Convert megabits per second and gigabytes per second instantly in either direction. The calculation runs entirely in your browser.

Gigabits per second to Megabytes per second Converter

Convert gigabits per second and megabytes per second instantly in either direction. The calculation runs entirely in your browser.

Gigabits per second to Gigabytes per second Converter

Convert gigabits per second and gigabytes per second instantly in either direction. The calculation runs entirely in your browser.

Megabytes per second to Gigabytes per second Converter

Convert megabytes per second and gigabytes per second instantly in either direction. The calculation runs entirely in your browser.

UUID v4 Generator

Generate a cryptographically random UUID v4 using the browser crypto API.

Random Integer Generator

Generate a random integer between inclusive minimum and maximum values.

Random Decimal Generator

Generate a random decimal between minimum and maximum values.

Random String Generator

Generate a random alphanumeric string locally.

Random Password Generator

Generate a random password locally from letters, numbers and symbols.

SHA-256 Hash Generator

Generate a SHA-256 digest from pasted text using Web Crypto.

UTM URL Builder

Build a URL with common UTM campaign parameters without sending it anywhere.

Random Hex Color Generator

Generate a random six-digit hexadecimal colour.

CSS Linear Gradient Generator

Create a CSS linear-gradient declaration from two colours and an angle.

Meta Description Length Checker

Count characters in a proposed meta description and flag common preview-length ranges without claiming a Google hard limit.

Transcript Delivery Workbench

Clean SRT, VTT or TXT captions locally, rename speakers, flag structural caption issues and export a client-ready transcript package.

Amazon Settlement Delta Auditor

Compare two Amazon Flat File V2 settlement reports locally and surface fee, refund, reserve, amount-description and SKU row-net changes.

Amazon Price Cliff Detector

Check nearby Amazon UK referral-fee and Low-Price FBA thresholds using seller-entered unit costs and fulfilment fees.

Compare Excel Files Online

Compare two Excel or CSV files by a stable key and see added, removed and changed rows without uploading either file.

Excel Diff by Key / ID

Match two workbooks by ID, email, SKU, invoice number or another key instead of relying on row order.

Find Missing Rows Between Excel Files

Find records present in one Excel or CSV file but missing from the other using a key column you control.

CSV / Excel Reconciliation Tool

Reconcile two operational exports locally, including CSV-versus-XLSX comparisons, with a transparent key-based diff.

CSV / Excel Column Mapper

Compare source headers with a target template and generate deterministic exact or suggested column mappings before a CRM, ecommerce or data import.

CSV / Excel Schema Validator

Validate a data file against a reference spreadsheet before import: missing headers, extra headers, likely type drift and blank-rate risk.

Fuzzy Match Excel / CSV Lists

Match similar text values across two spreadsheets with an adjustable similarity threshold for names, vendors, customers or free-form labels.

Invoice Reconciliation Tool

Compare invoice and payment/accounting exports locally to find missing references, duplicate keys and changed amount or status fields.

Bank CSV Reconciliation Tool

Compare a bank CSV/XLSX export with a ledger export using transaction IDs or references and surface missing, duplicate and changed records locally.

Merge Excel Files Online

Append rows from multiple Excel or CSV files into one combined dataset in your browser.

Remove Excel Duplicates by Key

Preview and remove duplicate spreadsheet rows by ID, email, SKU or the entire row while preserving the source file.

Excel Workbook Audit

Inspect workbook sheets, formulas, errors, hidden sheets, blank cells and duplicate headers without uploading the file.

Excel Formula Audit

Extract workbook formulas with sheet, cell, cached value and formula-error state so risky calculations can be reviewed before handoff.