Developer Tools
Free online developer tools: JSON formatter and validator, QR code generator, password generator, Base64 and URL encoders, hash generator and more.
JSON Formatter
Beautify, validate and minify JSON data.
DeveloperOpen → PopularQR Code Generator
Create QR codes for links, text, Wi-Fi and more.
DeveloperOpen →Password Generator
Generate strong, random and secure passwords.
DeveloperOpen →Base64 Encoder / Decoder
Encode text to Base64 or decode it back.
DeveloperOpen →URL Encoder / Decoder
Percent-encode or decode URLs and query strings.
DeveloperOpen →HTML Minifier
Minify HTML to make pages load faster.
DeveloperOpen →CSS Minifier
Compress CSS by removing whitespace and comments.
DeveloperOpen →JavaScript Minifier
Minify JavaScript files for production.
DeveloperOpen →Regex Tester
Test regular expressions with live matching.
DeveloperOpen →UUID Generator
Generate random version 4 UUIDs in bulk.
DeveloperOpen →Hash Generator
Create MD5, SHA-1, SHA-256 and SHA-512 hashes.
DeveloperOpen →JWT Decoder
Decode and inspect JSON Web Tokens.
DeveloperOpen →Timestamp Converter
Convert Unix timestamps to dates and back.
DeveloperOpen →Color Converter
Convert colors between HEX, RGB and HSL.
DeveloperOpen →HTML Entity Encoder
Escape and unescape HTML special characters.
DeveloperOpen →About our developer tools
Handy utilities for developers, testers and IT teams. Format and validate JSON, generate strong passwords and QR codes, encode and decode Base64 or URLs, and convert timestamps without opening an IDE. Everything runs client-side, so API responses, tokens and other sensitive data never leave your machine.
Available right now: JSON Formatter, QR Code Generator, Password Generator, Base64 Encoder / Decoder, URL Encoder / Decoder, HTML Minifier, CSS Minifier, JavaScript Minifier, Regex Tester, UUID Generator, Hash Generator, JWT Decoder, Timestamp Converter, Color Converter, HTML Entity Encoder. The remaining tools in this category are in development. Tell us which one you need first.