Percent Calculator
A% of B, what percent is A of B, percent change, and after % increase/decrease.
Age Calculator
Find your exact age in years, months, and days.
Calculator
Add, subtract, multiply, divide and %.
Unit Converter
Length, weight, temperature.
Text → PDF
Convert plain text to PDF instantly.
Text Utilities
Upper/lowercase, word count, remove spaces.
Base64 Tools
Encode or decode Base64 safely online.
URL Tools
Encode or decode URLs safely.
Password & UUID Generator
Generate secure passwords and UUID v4.
UUID v4
Generate RFC 4122 version-4 UUIDs.
SHA-256 Hash
Hash any text or string using SHA-256.
Image Resizer & Compressor
Resize and compress images (JPG/PNG/WebP).
Color Picker & Contrast
Check WCAG contrast between colors.
Stopwatch & Countdown
Track time with stopwatch or countdown.
Quick Notes
Save notes in your browser (localStorage).
JSON Formatter
Format, minify, and validate JSON. Unicode-safe.