Free Developer Tools
Fast, free, anonymous. All the essential utilities for modern software engineering workflows in one systematic place. No login required.
ENCODING
Base64 Encoder/Decoder
Securely encode or decode text and binary data into Base64 format for safe transmission.
URL Encoder/Decoder
Convert special characters in strings to their URL-friendly percent-encoded equivalents.
JSON
JSON Formatter
Prettify messy JSON strings into a readable, indented structure with syntax highlighting.
JSON Minifier
Compress your JSON data by removing all unnecessary whitespace and line breaks.
JSON Validator
Check for syntax errors and validate your JSON structure against RFC standards.
CONVERTERS
Color Converter
Convert colors between HEX, RGB, HSL, and CMYK with a visual picker interface.
Timestamp Converter
Transform Unix timestamps into human-readable dates and back again easily.
Markdown to HTML
Live preview and convert GitHub-flavored markdown into clean, semantic HTML.
CSS
CSS Minifier
Optimize your stylesheets for production by removing bloat and unnecessary characters.
CSS Beautifier
Format minified CSS with standard indentation and spacing for better maintenance.
GENERATORS
UUID Generator
Generate bulk Version 4 Universally Unique Identifiers for your databases and APIs.
JWT Decoder
Safely decode JSON Web Tokens locally to inspect header and payload data.
Regex Tester
Build and test regular expressions with live matching, groups, and substitution.