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 → Coming soonBase64 Encoder / Decoder
Encode text to Base64 or decode it back.
DeveloperPreview Coming soonURL Encoder / Decoder
Percent-encode or decode URLs and query strings.
DeveloperPreview Coming soonHTML Minifier
Minify HTML to make pages load faster.
DeveloperPreview Coming soonCSS Minifier
Compress CSS by removing whitespace and comments.
DeveloperPreview Coming soonJavaScript Minifier
Minify JavaScript files for production.
DeveloperPreview Coming soonRegex Tester
Test regular expressions with live matching.
DeveloperPreview Coming soonUUID Generator
Generate random version 4 UUIDs in bulk.
DeveloperPreview Coming soonHash Generator
Create MD5, SHA-1 and SHA-256 hashes.
DeveloperPreview Coming soonJWT Decoder
Decode and inspect JSON Web Tokens.
DeveloperPreview Coming soonTimestamp Converter
Convert Unix timestamps to dates and back.
DeveloperPreview Coming soonColor Converter
Convert colors between HEX, RGB and HSL.
DeveloperPreview Coming soonHTML Entity Encoder
Escape and unescape HTML special characters.
DeveloperPreviewAbout 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. The remaining tools in this category are in development. Tell us which one you need first.