Developer Tools

Encode, decode, format, generate, and test — essential developer utilities that run entirely in your browser.

Encode / Decode

Encode and decode Base64 strings

Decode and inspect JSON Web Tokens

Encode and decode URL components

Generate QR codes from text or URLs

Generate unique identifiers (v4)

Generate placeholder text

Generate MD5, SHA-1, SHA-256 hashes

Create strong, secure passwords

Format and beautify SQL queries

Format, validate, and minify JSON

Minify HTML, CSS, and JavaScript

Generate TypeScript types from JSON

Test and debug regular expressions

Compare texts with word-level highlighting

Parse and visualize cron expressions

Pick colors with HEX, RGB, HSL values