20+ essential utilities for developers. No sign-up, no tracking, no BS. Everything runs locally in your browser.
Format, validate, and minify JSON data with syntax highlighting and error detection.
Most PopularWrite Markdown and see a live, styled preview in real-time.
Live PreviewMinify CSS for production or beautify it for readability.
CSSEncode and decode HTML entities. Prevent XSS and display special characters.
SecurityGenerate UUID v4, v7, ULID, and Nano IDs with bulk generation support.
PopularGenerate MD5, SHA-1, SHA-256, SHA-512 hashes from any text input.
CryptoGenerate placeholder text in paragraphs, sentences, or words.
DesignCreate strong, secure passwords with customizable length and character sets.
SecurityConvert between HEX, RGB, HSL, and HSB. Live preview with palette generation.
DesignTest regular expressions with live matching, group captures, and common patterns library.
EssentialConvert between Unix timestamps and human-readable dates with timezone support.
BackendConvert numbers between binary, octal, decimal, and hexadecimal.
Low-LevelCompare two texts side by side and highlight every difference.
Useful