Developer Tools
JSON, regex, JWT, cron, Base64, UUID, hash, chmod, URL parser, and daily builder utilities.
UUID Generator
Generate one or many UUID v4 identifiers.
Regex Tester
Test regular expressions against sample text.
Diff Checker
Compare two texts line by line and highlight changes.
JWT Decoder
Decode JWT header and payload without verifying signatures.
Cron Expression Builder
Build and explain 5-field cron schedules with presets.
HTML Entity Encoder
Encode or decode HTML entities locally.
CSS Unit Converter
Convert px to rem/em using your root font size.
Number Base Converter
Convert decimal to binary, octal, and hexadecimal.
URL Parser
Break a URL into host, path, hash, and query parameters.
Chmod Calculator
Toggle rwx permissions and get octal chmod values.
HTTP Status Codes
Quick reference for common HTTP response codes.
Gitignore Generator
Combine Node, Next.js, Python, Flutter, and Go .gitignore templates.
.env File Formatter
Trim and sort keys in a .env file for cleaner commits.
Markdown Table Generator
Turn CSV into a GitHub-ready markdown table.
Fake Data Generator
Generate mock users with UUID, name, email, and phone as JSON.
CSS Box Shadow Generator
Design box-shadows with live preview and copyable CSS.