Data & developer tools

Data Converter

Convert CSV, TSV, JSON, XML, YAML and Excel files into each other, with nested data and large files handled.

Opens CSV, TSV, JSON, XML, YAML, XLSX · Saves CSV, TSV, JSON, XML, YAML, XLSX

Base64 Encoder and Decoder

Encode and decode Base64 for text, files and images, with URL-safe and line wrapped options.

Opens Text, any file, Base64 strings · Saves Base64 text, decoded files

Color Converter

Convert a color between HEX, RGB, HSL, HSV and CMYK and check its contrast with white and black.

Opens HEX, RGB, HSL, HSV, CMYK, CSS names · Saves Copied CSS

CSS Formatter

Beautify or minify CSS, with unclosed comments, strings and brackets reported.

Opens CSS, SCSS, Less · Saves CSS

Hash Generator

Hash text or files with MD5, SHA-1, SHA-256, SHA-384 and SHA-512, and check a download against its published hash.

Opens Text, any file · Saves Copied hashes

HTML Entity Encoder and Decoder

Encode and decode HTML entities, named or numeric, with a searchable reference.

HTML Formatter

Indent and beautify HTML, including the CSS and JavaScript inside it.

Opens HTML · Saves HTML

JavaScript Formatter

Beautify JavaScript and minified code with indent, brace and wrapping options.

Opens JavaScript · Saves JavaScript

JSON Formatter

Pretty print, minify and validate JSON, with the line and column of any error.

Opens JSON · Saves JSON

JWT Decoder

Decode a JSON Web Token and read its claims and dates, with an optional local HS256 signature check.

Password Generator

Make random passwords and passphrases and see how many bits of entropy they have.

Opens Nothing to open · Saves Copied text

Regex Tester

Test a JavaScript regex with flags, see matches and groups, and preview a replacement.

Opens Pasted text · Saves Copied text

SQL Formatter

Lay out SQL for 20 dialects with keyword case, indent and layout options.

Opens SQL · Saves SQL

Unix Timestamp Converter

Turn a Unix timestamp into a readable date in any time zone, or a date into a timestamp.

Opens Seconds, milliseconds, ISO 8601, RFC 2822 · Saves Copied text

URL Encoder and Decoder

Percent-encode and decode URLs, and split a URL into parts and a table of query parameters.

UUID Generator

Generate version 4 and version 7 UUIDs in bulk, in several formats, and read the time inside one.

Opens Nothing to open · Saves Copied text, TXT

XML Formatter

Pretty print, minify and check XML, SVG and feeds, with the line and column of any error.

Opens XML, SVG, RSS, Atom · Saves XML

YAML Formatter

Re-indent and check YAML with comments kept and values never rewritten.

Opens YAML, YML · Saves YAML