Developer Tools
Encode, decode, format, and validate. Essential utilities for developers that run entirely in the browser.
All Developer Tools (17)
Explore our collection of free developer tools
Base64 Encoder
Encode and decode text and files to Base64.
Encode Base64GitHub Profile README Generator
Generate a stunning GitHub profile README with stats, badges, and tech stack — in seconds, no coding needed.
Generate READMEJSON Formatter
Format, validate, and beautify JSON data instantly.
Format JSONJSON Validator
Validate JSON syntax and highlight errors.
Validate JSONURL Encoder / Decoder
Encode or decode URLs and query parameters — supports both encodeURIComponent and encodeURI modes.
Encode URLUUID Generator
Generate random UUIDs (v1, v4) instantly.
Generate UUIDBase64 Encoder/Decoder
Encode plain text to Base64 or decode Base64 back to text — Unicode-safe, instant, browser-only.
Encode / DecodeColor Picker
Pick colors and get HEX, RGB, and HSL values.
Pick ColorCron Expression Parser
Parse and explain cron job expressions in plain English.
Parse CronCSS Beautifier
Format and beautify minified CSS code.
Beautify CSSCSS Gradient Generator
Generate beautiful CSS linear and radial gradients.
Generate GradientCSS Minifier
Minify CSS files to reduce size and improve load speed.
Minify CSSDiff Checker
Compare two blocks of code and highlight line differences.
Check DiffHTML Formatter
Format and prettify HTML markup for readability.
Format HTMLHTML to Markdown
Convert HTML markup to clean Markdown text.
Convert HTMLJWT Decoder
Decode and inspect JSON Web Token payloads instantly.
Decode JWTRegex Tester
Test and debug regular expressions with live matches.
Test RegexSuggest a Tool
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