A tool for the task at hand.

JSON Formatter

Format JSON with readable two-space indentation in your browser.

JSON Validator

Check JSON syntax and locate invalid input locally.

JSON Minifier

Remove insignificant JSON whitespace without changing its structure.

JSON to YAML

Convert JSON into readable YAML locally.

YAML to JSON

Convert a YAML document into JSON-compatible data.

JSON to CSV

Convert a JSON array of records into quoted CSV text.

CSV to JSON

Convert CSV headers and rows into a JSON array of records.

JSON Diff

Compare two JSON documents by structure and changed values.

JSON Tree Viewer

Explore JSON keys, array indexes, types, and values in an expandable tree.

JSON Schema Validator

Validate JSON data against a supplied local JSON Schema.

JSON Schema Generator

Infer a starting JSON Schema from a representative JSON sample.

JSONPath Tester

Select matching JSON values with a local, non-executing JSONPath expression.

JSON Escape

Encode text as a quoted JSON string literal.

JSON Unescape

Decode a quoted JSON string literal into plain text.

JSON Key Sorter

Sort object keys recursively while retaining array order.

JSON Array to Object

Index JSON records by a chosen unique property.

JSON Object to Array

Convert object entries into an array of key/value records.

JSON Lines Formatter

Normalize each JSON Lines record to one compact JSON value per line.

JSON Lines Validator

Validate newline-delimited JSON and identify invalid record lines.

JSON Lines to JSON

Collect JSON Lines records into a JSON array.

JSON to JSON Lines

Write a JSON array as one JSON value per line.

JSON Structure Inspector

Inspect JSON paths and types without displaying scalar values.

JSON Statistics Analyzer

Count JSON nodes, types, keys, and nesting depth.

CSV Formatter

Normalize CSV quoting and record separators.

CSV Validator

Check CSV quoting and consistent row widths.

CSV Column Analyzer

Inspect empty, unique, and inferred value types in one CSV column.

CSV Delimiter Detector

Compare comma, tab, semicolon, and pipe separators in tabular text.

CSV to TSV

Convert comma-separated records into tab-separated values.

TSV to CSV

Convert tab-separated records into quoted CSV.

CSV to Markdown

Convert CSV into a Markdown table with escaped cell content.

CSV to HTML Table

Generate escaped HTML table source from CSV records.

CSV Cleaner

Trim cell edges and remove empty CSV rows while preserving meaningful content.

CSV Column Reorderer

Reorder CSV columns using an explicit list of header names.

CSV Row Filter

Keep CSV rows matching a text or numeric column comparison.

CSV Data Deduplicator

Remove duplicate CSV rows while preserving the first occurrence.

CSV Transposer

Swap CSV rows and columns, including the header row.

JSON to XML

Convert JSON into XML using a fixed root element.

XML to JSON

Parse XML elements and attributes into JSON locally.

JSON to TOML

Serialize a compatible JSON configuration object as TOML.

TOML to JSON

Parse TOML configuration into structured JSON.

YAML Diff

Compare two YAML documents as structured data.

YAML Formatter

Parse and normalize a YAML document with readable indentation.

YAML Validator

Check YAML syntax locally and report parser errors.

XML Formatter

Format XML structure while preserving significant text content.

XML Validator

Check XML well-formedness with a local XML parser.

XML Minifier

Remove formatting whitespace from XML while preserving significant text.

Encoding

35 tools

Base64 Encoder

Encode UTF-8 text as standard RFC 4648 Base64 locally.

Base64 Decoder

Decode standard Base64 into UTF-8 text with malformed-input checks.

URL Encoder

Encode a complete URL while preserving its reserved URI delimiters.

URL Decoder

Decode URL escapes while retaining escapes for reserved URI delimiters.

URL Component Encoder

Percent-encode a single URL component, including reserved URL delimiters.

URL Component Decoder

Decode percent escapes in an individual URL component into text.

JWT Decoder

Inspect a JWT header, payload, and signature segment locally without verifying the token.

HTML Encoder

Escape HTML-significant text characters into HTML character references.

HTML Decoder

Decode HTML character references into plain, selectable text.

HTML Entity Encoder

Convert text into HTML entities for inspecting character-reference notation.

HTML Entity Decoder

Resolve HTML5 named and numeric entities into readable text.

Text to Unicode

Represent text as Unicode scalar code points in U+ notation.

Unicode to Text

Convert U+ Unicode code points into their corresponding text characters.

Unicode Escape Encoder

Encode non-ASCII and control characters as UTF-16 Unicode escape sequences.

Unicode Escape Decoder

Decode Unicode escape notation without executing JavaScript.

Text to Hex

Convert text into hexadecimal representations of its UTF-8 bytes.

Hex to Text

Read hexadecimal byte values as UTF-8 text.

Hexadecimal Encoder

Encode text in base 16 using its UTF-8 byte sequence.

Hexadecimal Decoder

Decode a base-16 byte sequence into UTF-8 text.

Binary Encoder

Encode UTF-8 text as eight-bit binary byte groups.

Binary Decoder

Decode eight-bit binary byte groups into UTF-8 text.

Text to ASCII

Convert ASCII characters into decimal codes from 0 to 127.

ASCII to Text

Convert decimal ASCII codes into text without accepting non-ASCII values.

Base32 Encoder

Encode UTF-8 text using the RFC 4648 Base32 alphabet.

Base32 Decoder

Decode RFC 4648 Base32 data into UTF-8 text.

Base58 Encoder

Encode UTF-8 text with the Bitcoin Base58 alphabet.

Base58 Decoder

Decode Bitcoin-alphabet Base58 into UTF-8 text.

Base64 URL Encoder

Encode UTF-8 text as URL-safe Base64 without padding.

Base64 URL Decoder

Decode URL-safe Base64 into UTF-8 text locally.

Data URI Encoder

Package text and its MIME type into a percent-encoded UTF-8 data URI.

Data URI Decoder

Inspect a data URI’s MIME type, encoding mode, and decoded text.

Punycode Encoder

Convert an internationalized domain name to its ASCII IDNA form.

Punycode Decoder

Decode ASCII IDNA domain labels into a Unicode domain name.

Text to Octal

Represent each UTF-8 text byte as a three-digit octal value.

Octal to Text

Decode octal byte values into their UTF-8 text representation.

Security

22 tools

UUID Generator

Generate one RFC 9562 UUID using version 4 randomness or version 7 time ordering.

UUID Parser

Inspect a UUID's version, variant, normalized value and structural validity locally.

Password Generator

Generate a random password locally from the selected character groups.

SHA-256 Generator

Compute a SHA-256 hexadecimal digest of UTF-8 text locally.

SHA-384 Generator

Compute a SHA-384 hexadecimal digest of UTF-8 text locally.

SHA-512 Generator

Compute a SHA-512 hexadecimal digest of UTF-8 text locally.

SHA-1 Generator

Compute a SHA-1 hexadecimal digest of UTF-8 text locally for legacy compatibility.

MD5 Generator

Compute a MD5 hexadecimal digest of UTF-8 text locally for legacy compatibility.

HMAC Generator

Create a keyed HMAC-SHA-256, HMAC-SHA-384 or HMAC-SHA-512 authentication code from UTF-8 text locally.

CRC32 Generator

Compute the CRC32 hexadecimal checksum of UTF-8 text locally.

Checksum Generator

Calculate a text checksum using MD5, SHA-1, SHA-256, SHA-384, SHA-512 or CRC32.

Hash Compare

Compare two hash strings locally after trimming leading and trailing whitespace, with case-sensitive equality.

File Hash Generator

Hash one browser-local file up to 64 MiB using SHA-1, SHA-256, SHA-384 or SHA-512.

Entropy Calculator

Estimate text entropy in bits using input length and a character-set model, entirely in your browser.

Password Strength Checker

Estimate password strength with a local heuristic and show a score, label and practical feedback.

ULID Generator

Generate one 26-character ULID using the device timestamp and cryptographically secure randomness.

NanoID Generator

Generate a compact random identifier using the URL-safe NanoID alphabet.

Random Number Generator

Generate secure random integers within inclusive minimum and maximum bounds.

Random String Generator

Generate a secure random string using one of five predefined character sets.

Secure Token Generator

Generate 8 to 256 secure random bytes encoded as hexadecimal or unpadded Base64URL.

Hex Random Generator

Generate 1 to 256 secure random bytes as hexadecimal text.

Secret Key Generator

Generate a random 128-bit, 192-bit or 256-bit secret key and display its hexadecimal value and size.

Regex

9 tools

Regex Tester

Test a JavaScript regular expression locally and see match status, counts, text, positions and capture groups.

Regex Escape

Escape plain text for literal matching in a JavaScript regular expression, entirely in your browser.

Regex Replace Tester

Preview JavaScript regex replacements locally, including replacement tokens and the number of replacements.

Regex Match Inspector

Inspect each JavaScript regex match with numbered cards, exact text, start and end offsets, length and groups.

Regex Group Extractor

Extract numbered and named JavaScript regex capture values per match, keeping empty and unmatched groups distinct.

Regex Flag Tester

Compare a JavaScript regex independently with no flags and each of g, i, m, s, u, y and d, including browser support errors.

Regex Pattern Builder

Build JavaScript regex source from literal text or a character mode and quantifier, with clear case-insensitive usage guidance.

Regex Capture Group Tester

Inspect JavaScript regex capture definitions, non-capturing groups and lookarounds alongside per-match capture values.

Regex Split Tester

Split text with a JavaScript regex separator and inspect numbered parts, including captured separators, empty values and unmatched captures.

Date & Time

17 tools

Unix Timestamp Converter

Convert Unix seconds or milliseconds into readable dates, ISO 8601, UTC and browser-local time.

Unix Timestamp Generator

Generate Unix seconds and milliseconds from a chosen date, time and IANA timezone.

Unix Milliseconds Converter

Convert an explicitly millisecond Unix timestamp into readable UTC and browser-local dates.

ISO 8601 Converter

Normalize an offset-bearing ISO 8601 date/time and view its UTC and browser-local equivalents.

Date to Timestamp

Convert a calendar date and clock time in an explicit IANA timezone to Unix seconds and milliseconds.

Timestamp to Date

Convert a Unix timestamp with explicit units to a date/time in your chosen IANA timezone.

Timezone Converter

Convert a chosen date and time between two IANA timezones, including their UTC offsets.

Current Time in Timezone

Read a snapshot of your device’s current date, time and UTC offset in an IANA timezone.

Date Difference Calculator

Compare two explicit local dates and times as a calendar difference and elapsed days, hours, minutes and seconds.

Time Difference Calculator

Calculate the difference between two clock times, optionally anchored to a pair of local calendar dates.

Relative Time Generator

Describe a target date/time relative to a chosen reference and inspect the exact elapsed difference.

Date Format Converter

Convert a calendar date between six explicit numeric formats without guessing its locale or timezone.

Epoch Converter

Convert a Unix epoch value in explicit seconds or milliseconds to readable UTC and browser-local dates.

Week Number Calculator

Find a calendar date’s week number, week year and weekday using ISO 8601 or Sunday-start weeks.

Leap Year Checker

Check whether a year is a Gregorian leap year and see the divisibility rule that explains the result.

Business Days Calculator

Count business days inclusively between two dates using your weekend definition and optional holiday list.

Age Calculator

Calculate calendar age in years, months and days, plus total days, on an explicitly chosen target date.

Text

31 tools

Text Counter

Count characters, characters without whitespace, words, lines, estimated sentences and paragraphs locally.

Case Converter

Transform text into uppercase, lowercase, title, sentence, camel, Pascal, snake, kebab or constant case in your browser.

Duplicate Line Remover

Remove repeated lines locally while preserving the first occurrence and your chosen case sensitivity.

Sort Lines

Sort text lines A to Z or Z to A with explicit case-sensitive or case-insensitive comparison.

Reverse Lines

Reverse the order of text lines without reversing their content, entirely in your browser.

Reverse Text

Reverse text by grapheme cluster where supported, keeping combined characters and emoji together.

Whitespace Cleaner

Clean unnecessary whitespace in text locally while retaining its line structure.

Empty Line Remover

Remove empty and whitespace-only lines from text while preserving the remaining line content.

Prefix / Suffix Adder

Apply a literal prefix and suffix to every text line with browser-local processing.

Find & Replace

Replace literal text with explicit case sensitivity and a choice of first or all occurrences, without regex syntax.

Text Diff

Compare two text documents locally and inspect readable added, removed and unchanged line content.

Slug Generator

Create a URL-friendly lowercase slug from text with local normalization and hyphen-separated words.

Lorem Ipsum Generator

Generate an exact requested number of Lorem Ipsum words, sentences or paragraphs locally.

Random Text Generator

Generate random fixture text by characters, words, sentences or paragraphs using browser randomness.

URL Extractor

Extract URL text and count occurrences without navigating to or fetching any extracted address.

Email Extractor

Extract email-address text and count occurrences locally, preserving repeated addresses in source order.

Number Extractor

Extract signed integer and decimal text and report the number of occurrences without uploading the source.

Regex Line Extractor

Extract matching lines using a JavaScript regex and explicit flags in a time-limited local worker.

Line Deduplicator

Deduplicate text lines while preserving first occurrences and report how many duplicates were removed.

Line Shuffler

Shuffle text lines locally using browser randomness while retaining their original content.

Text Normalizer

Normalize Unicode text to NFC and all line endings to LF using one fixed, predictable transformation.

Tabs to Spaces

Replace tab characters with a chosen number of spaces using an explicit width from 1 to 16.

Spaces to Tabs

Convert groups of spaces to tabs with an explicit group width from 1 to 16 spaces per tab.

Line Ending Converter

Normalize mixed text line endings to your explicit choice of LF, CRLF or CR.

LF to CRLF

Convert text line endings to Windows-style CRLF with a dedicated fixed-direction tool.

CRLF to LF

Convert text line endings to Unix-style LF with a dedicated fixed-direction tool.

BOM Detector

Detect a leading Unicode U+FEFF byte-order-mark character in decoded text without guessing its original encoding.

BOM Remover

Remove a leading U+FEFF byte-order-mark character from decoded text while retaining other content.

Sentence Counter

Estimate the number of sentences in text locally using punctuation and text boundaries.

Paragraph Counter

Count nonempty paragraphs separated by blank lines in browser-local text.

Character Counter Without Spaces

Count text characters after excluding all spaces and whitespace, using grapheme clusters where supported.

Cron

6 tools

Cron Expression Generator

Build a cron expression from explicit second, minute, hour, day-of-month, month and weekday fields, with a readable schedule.

Cron Explainer

Explain a cron expression with a field-by-field breakdown and a human-readable schedule in your browser.

Cron Validator

Validate cron field syntax and bounds locally and see a clear Valid or Invalid status with the error message.

Cron Next Run

Find the next cron occurrence after an explicit reference instant in a required IANA timezone and show the elapsed time until it.

Human to Cron

Convert supported human schedule descriptions to a five-field cron expression and inspect the parsed schedule locally.

Cron to Human

Translate a cron expression into a readable explanation with individual field interpretations, entirely in your browser.

SQL & Database

17 tools

SQL Formatter

Format SQL with readable indentation for an explicitly selected SQL dialect.

SQL Minifier

Reduce SQL layout whitespace while preserving string literals and token boundaries.

SQL Validator

Check supported SQL syntax and view its validity, syntax error and error location locally.

JSON to SQL Insert

Convert a JSON array of objects into dialect-aware SQL INSERT statements.

SQL Insert to JSON

Convert supported literal SQL INSERT statements into a JSON array of objects.

CSV to SQL Insert

Convert a CSV header and data rows into dialect-aware SQL INSERT statements.

SQL Insert to CSV

Convert supported literal SQL INSERT statements to CSV text with a header row.

SQL Insert to Markdown Table

Convert supported literal SQL INSERT statements into a readable Markdown table.

SQL INSERT Generator

Build a SQL INSERT statement from explicit columns and typed row values.

SQL UPDATE Generator

Build a SQL UPDATE statement with typed assignments and explicit WHERE conditions.

SQL DELETE Generator

Build a SQL DELETE statement with optional explicit WHERE conditions and an all-rows warning.

SQL SELECT Builder

Build a SQL SELECT statement from columns, typed conditions, ordering and an optional limit.

SQL WHERE Builder

Build a standalone SQL WHERE clause from typed conditions joined with AND or OR.

Database Connection String Builder

Build a PostgreSQL, MySQL or SQL Server connection string locally from explicit connection fields.

Database Connection String Parser

Inspect supported PostgreSQL, MySQL or SQL Server connection strings while keeping the password masked.

ER Diagram Generator

Generate a local entity relationship diagram from supported CREATE TABLE statements.

SQL Escape Helper

Escape a typed value as a SQL literal for an explicitly chosen dialect.

Web

21 tools

URL Parser

Break a URL into its protocol, credentials presence, hostname, path, ordered query parameters and fragment without visiting it.

URL Builder

Build an HTTP or HTTPS URL from explicit components and ordered query rows without visiting it.

Query String Parser

Decode a query string or URL into ordered key/value entries and a parameter count locally.

Query String Generator

Encode structured query entries, preserving their order, repeated keys and empty values.

HTTP Status Code Lookup

Look up an HTTP status code's standard text, category and concise description from a local reference.

MIME Type Lookup

Map a file extension or MIME type to its MIME type, common extensions and media category locally.

HTTP Header Reference

Look up a header's canonical name, category, purpose and typical example in a local curated reference.

User-Agent Parser

Heuristically parse a supplied User-Agent string into browser, OS, device type and engine without fingerprinting.

Meta Tag Generator

Generate safely escaped title and description, author, robots and theme-color markup as inert text.

Open Graph Generator

Generate escaped Open Graph tags from supplied metadata without fetching a page or image.

Open Graph Preview

Preview only the social metadata you enter locally, without visiting its URL or promising exact platform rendering.

Twitter/X Card Generator

Generate safely escaped Twitter/X card metadata as text from supplied content and optional handles.

Canonical URL Generator

Normalize an HTTP/HTTPS URL, remove only its fragment and generate an escaped canonical link tag locally.

Robots.txt Generator

Generate robots.txt from explicit user-agent groups, allow/disallow paths and sitemap URLs without crawling.

Sitemap XML Generator

Generate escaped sitemap XML from URL entries and only the optional dates, frequencies and priorities you supply.

Web App Manifest Generator

Generate formatted Web App Manifest JSON from explicit app settings and icon metadata without fetching icons.

Favicon Generator

Resize a local raster image into a centered transparent square PNG favicon without uploading it.

HTML Entity Reference

Look up an HTML entity, Unicode character or code point and return its character, named and numeric forms locally.

URL Fragment Parser

Extract the raw and decoded fragment from a URL or #fragment without navigating to it.

URL Path Analyzer

Inspect a URL or pathname's segments, count, final filename and extension locally without a request.

URL Encoding Inspector

Inspect percent-encoded runs, decoded values and their positions, and show a fully decoded preview locally.

API

16 tools

cURL to Fetch

Convert a literal cURL command into JavaScript Fetch code locally without executing a request.

Fetch to cURL

Convert a supported static JavaScript Fetch call into a cURL command locally without evaluating JavaScript.

cURL to Axios

Generate readable Axios JavaScript from a supported cURL command locally; no request is executed.

cURL to Python Requests

Generate Python Requests code from supported cURL text locally without executing Python or HTTP.

HTTP Header Builder

Generate a raw HTTP header block and JavaScript headers object from ordered entries without transmitting them.

HTTP Header Parser

Parse raw headers into ordered entries and a count, preserving duplicate headers and their original casing locally.

REST API Request Builder

Generate a request summary, cURL command and Fetch code from explicit REST request fields without sending them.

JSON Request Body Builder

Build a formatted JSON object from ordered typed key/value fields locally, rejecting duplicate keys.

API Response Formatter

Format supplied JSON, XML, HTML source or text locally without fetching or executing response content.

GraphQL Formatter

Parse and format a supported executable GraphQL document locally without sending any operation.

GraphQL Query Builder

Build a local GraphQL query or mutation from its operation, typed arguments and selected fields without execution.

GraphQL Variables Formatter

Validate a GraphQL variables JSON object and pretty-print it locally without transmitting its values.

HTTP Request Builder

Generate raw HTTP/1.0 or HTTP/1.1 request text with explicit headers and body without sending it.

Basic Auth Header Generator

Generate a UTF-8 Base64 Basic Authorization header locally from explicit username and password.

Bearer Token Header Generator

Generate a Bearer Authorization header locally without storing or remotely validating the token.

API Request Tester

Send one explicit HTTP request directly from your browser and inspect exposed status, headers, body and elapsed time.

Image

27 tools

PNG to JPG

PNG to JPG: png file, jpeg quality, background color → jpeg image, preview, original size, output size. Process locally in your browser.

JPG to PNG

JPG to PNG: jpeg image → png image, preview, original size, output size. Process locally in your browser.

PNG to WebP

PNG to WebP: png image, webp quality → webp image, preview, original size, output size. Process locally in your browser.

WebP to PNG

WebP to PNG: webp image → png image, preview, original size, output size. Process locally in your browser.

JPG to WebP

JPG to WebP: jpeg image, webp quality → webp image, preview, original size, output size. Process locally in your browser.

WebP to JPG

WebP to JPG: webp image, jpeg quality, background color → jpeg image, preview, original size, output size. Process locally in your browser.

AVIF to PNG

AVIF to PNG: avif image → png image, preview, original size, output size. Process locally in your browser.

AVIF to JPG

AVIF to JPG: avif image, jpeg quality, background color → jpeg image, preview, original size, output size. Process locally in your browser.

SVG to PNG

SVG to PNG: svg file, svg text, width, height, background → png image, preview, output dimensions. Process locally in your browser.

SVG to JPG

SVG to JPG: svg file, svg text, width, height, jpeg quality, background color → jpeg image, preview, output dimensions. Process locally in your browser.

SVG to WebP

SVG to WebP: svg file, svg text, width, height, webp quality, background → webp image, preview, output dimensions. Process locally in your browser.

Image Compressor

Image Compressor: image file, output format, output quality → compressed image, preview, original size, output size, size reduction. Process locally in your browser.

Image Resizer

Image Resizer: image file, width, height, lock aspect ratio → resized image, preview, original dimensions, output dimensions, output size. Process locally in your browser.

Image Cropper

Image Cropper: image file → cropped image, preview, output dimensions, output size. Process locally in your browser.

Image Rotator

Image Rotator: image file, rotation → rotated image, preview, output dimensions. Process locally in your browser.

Image Flipper

Image Flipper: image file, flip direction → flipped image, preview. Process locally in your browser.

Image Quality Adjuster

Image Quality Adjuster: image file, output format, output quality → adjusted image, preview, output size. Process locally in your browser.

Image Dimension Inspector

Image Dimension Inspector: image file → width, height, aspect ratio, megapixels. Process locally in your browser.

Image Metadata Viewer

Image Metadata Viewer: image file → file name, mime type, file size, width, height, available image metadata. Process locally in your browser.

Image to Base64

Image to Base64: image file → base64 payload, data uri, mime type, file size. Process locally in your browser.

Base64 to Image

Base64 to Image: base64 or image data uri → image preview, mime type, dimensions, image file. Process locally in your browser.

Image to Data URI

Image to Data URI: image file → data uri, mime type, file size. Process locally in your browser.

Data URI to Image

Data URI to Image: image data uri → image preview, mime type, dimensions, image file. Process locally in your browser.

SVG Formatter

SVG Formatter: svg text → formatted svg. Process locally in your browser.

SVG Minifier

SVG Minifier: svg text → minified svg. Process locally in your browser.

Image Color Extractor

Image Color Extractor: image file, number of colors → color palette, approximate frequency. Process locally in your browser.

Image Palette Generator

Image Palette Generator: image file, palette size → color palette. Process locally in your browser.

Spreadsheet

20 tools

CSV to Excel

CSV to Excel: csv text, csv file, sheet name → xlsx file, row count, column count. Process locally in your browser.

Excel to CSV

Excel to CSV: xlsx file, sheet → csv file/text, row count, column count. Process locally in your browser.

JSON to Excel

JSON to Excel: json array of objects, sheet name → xlsx file, row count, column count. Process locally in your browser.

Excel to JSON

Excel to JSON: xlsx file, sheet → json array of objects, row count, column count. Process locally in your browser.

TSV to Excel

TSV to Excel: tsv text, tsv file, sheet name → xlsx file. Process locally in your browser.

Excel to TSV

Excel to TSV: xlsx file, sheet → tsv file/text. Process locally in your browser.

XLSX to HTML Table

XLSX to HTML Table: xlsx file, sheet → html table markup, row count, column count. Process locally in your browser.

Spreadsheet Viewer

Spreadsheet Viewer: xlsx file → sheet list, selected sheet preview, row count, column count. Process locally in your browser.

Sheet Extractor

Sheet Extractor: xlsx file, sheet → selected sheet xlsx file. Process locally in your browser.

Workbook Inspector

Workbook Inspector: xlsx file → file name, file size, sheet count, sheet names, per-sheet dimensions, formula count. Process locally in your browser.

Spreadsheet Transposer

Spreadsheet Transposer: xlsx file, sheet → transposed xlsx file, original dimensions, new dimensions. Process locally in your browser.

Spreadsheet Column Reorderer

Spreadsheet Column Reorderer: xlsx file, sheet, column order → reordered xlsx file. Process locally in your browser.

Spreadsheet Row Filter

Spreadsheet Row Filter: xlsx file, sheet, column, operator, value → filtered xlsx file, matched rows, excluded rows. Process locally in your browser.

Spreadsheet Deduplicator

Spreadsheet Deduplicator: xlsx file, sheet, key columns → deduplicated xlsx file, original rows, removed duplicates, final rows. Process locally in your browser.

Spreadsheet Column Analyzer

Spreadsheet Column Analyzer: xlsx file, sheet, column → row count, empty count, non-empty count, unique count, detected type, minimum, maximum, average where numeric. Process locally in your browser.

Spreadsheet Empty Row Cleaner

Spreadsheet Empty Row Cleaner: xlsx file, sheet → cleaned xlsx file, removed row count. Process locally in your browser.

Spreadsheet Empty Column Cleaner

Spreadsheet Empty Column Cleaner: xlsx file, sheet → cleaned xlsx file, removed column count. Process locally in your browser.

Workbook Merger

Workbook Merger: multiple xlsx files → merged xlsx workbook. Process locally in your browser.

Workbook Splitter

Workbook Splitter: xlsx file → one xlsx file per sheet, sheet/file list. Process locally in your browser.

Split Spreadsheet by Column

Split Spreadsheet by Column: xlsx file, sheet, column → one dataset/file per unique value, group count. Process locally in your browser.

Markdown

18 tools

Markdown Formatter

Markdown Formatter: markdown text → formatted markdown. Process locally in your browser.

Markdown Preview

Markdown Preview: markdown text → rendered preview. Process locally in your browser.

Markdown Table Generator

Markdown Table Generator: column names, rows, alignment → markdown table. Process locally in your browser.

Markdown TOC Generator

Markdown TOC Generator: markdown text, minimum heading level, maximum heading level → markdown table of contents, heading hierarchy. Process locally in your browser.

Markdown to HTML

Markdown to HTML: markdown text → sanitized html source. Process locally in your browser.

HTML to Markdown

HTML to Markdown: html text → markdown. Process locally in your browser.

CSV to Markdown Table

CSV to Markdown Table: csv text → markdown table. Process locally in your browser.

Markdown to Plain Text

Markdown to Plain Text: markdown text → plain text. Process locally in your browser.

Markdown Escaper

Markdown Escaper: plain text → markdown-escaped text. Process locally in your browser.

Markdown Link Extractor

Markdown Link Extractor: markdown text → link text, url, link count. Process locally in your browser.

Markdown Image Extractor

Markdown Image Extractor: markdown text → alt text, image url, title, image count. Process locally in your browser.

Markdown Heading Analyzer

Markdown Heading Analyzer: markdown text → heading hierarchy, heading count, heading-level warnings. Process locally in your browser.

Markdown Frontmatter Parser

Markdown Frontmatter Parser: markdown text → parsed frontmatter, markdown body. Process locally in your browser.

Markdown Task List Generator

Markdown Task List Generator: task items → markdown checklist. Process locally in your browser.

Markdown Blockquote Generator

Markdown Blockquote Generator: text → markdown blockquote. Process locally in your browser.

Markdown Code Block Generator

Markdown Code Block Generator: code, language → fenced markdown code block. Process locally in your browser.

Markdown List Generator

Markdown List Generator: list items, list type → markdown list. Process locally in your browser.

Markdown Statistics

Markdown Statistics: markdown text → character count, word count, line count, heading count, link count, image count, code block count, list item count. Process locally in your browser.

Color & CSS

7 tools

Color Converter

Color Converter: color, output format → detected source, converted color, preview. Process locally in your browser.

Color Picker

Color Picker: color, alpha → hex, rgb, hsl, alpha, preview. Process locally in your browser.

Palette Generator

Palette Generator: color, scheme → editable palette, css custom properties, json palette. Process locally in your browser.

Contrast Checker

Contrast Checker: foreground color, background color, opaque backdrop → contrast ratio, normal text aa/aaa, large text aa/aaa, effective colors. Process locally in your browser.

CSS Gradient Generator

CSS Gradient Generator: gradient type, linear angle, color stops → css gradient, live preview. Process locally in your browser.

Box Shadow Generator

Box Shadow Generator: shadow layers, preview background → css box-shadow, live preview. Process locally in your browser.