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Fast, free developer tools that just work. Paste, click, done — no signup, no tracking, no nonsense.
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Beautify, minify, and validate JSON instantly.
Format SQL queries for readability.
Generate TypeScript interfaces from JSON.
Convert HEX, RGB, HSL, HSV, CMYK.
Encode and decode Base64 strings.
Encode and decode URL components.
Decode, inspect, and verify JWTs.
Compare and diff two blocks of text.
Test regular expressions with live matches.
Generate UUID v4 and v7.
Generate secure random passwords.
MD5, SHA-1, SHA-256, SHA-512 hashes.
Convert Unix timestamps and dates.
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Beautify and minify code
Beautify, minify, and validate JSON instantly.
Format and beautify XML documents.
Format SQL queries for readability.
Beautify and format HTML markup.
Format or minify CSS stylesheets.
Beautify JavaScript code.
Minify JavaScript with Terser.
Format and validate YAML files.
Transform between formats
Generate TypeScript interfaces from JSON.
Generate Go structs from JSON.
Generate C# classes from JSON.
Generate Kotlin data classes from JSON.
Generate Rust structs with Serde from JSON.
Convert XML documents to JSON.
Convert JSON to XML documents.
Convert CSV data to JSON.
Convert JSON arrays to CSV.
Convert between YAML and JSON.
Convert TOML to JSON.
Convert HTML to JSX for React.
Convert SVG to a React component.
Convert HTML to Markdown.
Convert Markdown to HTML.
Convert HEX, RGB, HSL, HSV, CMYK.
Convert binary, octal, decimal, hex.
Decode Base64 strings to images.
Encode, decode, hash
Encode and decode Base64 strings.
Encode and decode URL components.
Encode and decode HTML entities.
Escape and unescape JSON strings.
Escape strings for many languages.
Decode, inspect, and verify JWTs.
Convert images to Base64 data URLs.
Validate and query data
Generate what you need
Timestamps and schedules
Instant & offline
Everything runs in your browser. No round-trips, no waiting.
Private by design
Your data never leaves your device. Nothing is uploaded.
Keyboard-first
⌘K to jump to any tool. Built for people who live in the terminal.
Open & free
No signup, no paywall, no nonsense. Just tools that work.