Your complete
developer toolbox
A powerful collection of developer tools and generators running entirely in your browser. Lightning-fast, privacy-focused, and always free. No sign-up required.
Developer Tools
Transform, validate, and analyze your data instantly
JSON Validator & Formatter
Validate, format, and beautify your JSON data with ease.
JWT Decoder
Decode and inspect JSON Web Tokens to check their payload and signature.
Base64 Encoder / Decoder
Quickly encode strings to Base64 or decode them back to their original form.
URL Encoder / Decoder
Encode and decode URLs with multiple encoding methods. Parse URL components and query parameters.
Timestamp Converter
Convert timestamps, dates, and time units. Calculate epoch dates for day, month, or year.
Text Counter & Analyzer
Count characters, words, lines, paragraphs, and sentences. Get reading and speaking time estimates.
Keyboard Event Monitor
Monitor and test keyboard events in real-time. See key codes, locations, and event properties.
Generators
Create secure passwords, unique IDs, and beautiful color palettes
Password Generator
Generate secure passwords with customizable options including length, character types, and strength indicators.
UUID / GUID Generator
Generate universally unique identifiers (UUIDs). Support for v1 (timestamp) and v4 (random) with bulk generation.
Color Palette Generator
Generate complete color palettes from a base color. Creates 9 shades like Tailwind CSS with HEX, RGB, and HSL output.
Lightning Fast
Built with performance in mind. No server round-trips, instant results.
100% Private
Your data never leaves your browser. Zero tracking, zero logging.
Always Free
No subscriptions, no paywalls. All features available to everyone.