Developer

Encode and decode Base64 strings and files — instantly in your browser

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files

Encode and decode HTML entities — named, numeric, and hex formats

Generate random UUIDs in bulk with format options — v4, uppercase, no hyphens

Encode and decode URLs and query parameters — percent-encoding made easy

Test, debug, and learn regular expressions with live highlighting and multi-language output

Compare two texts side-by-side and spot every difference instantly

Write markdown and see it rendered live — side-by-side, in your browser

Create a professional email signature in minutes — no signup, no uploads

Create beautiful CSS gradients with live preview and Tailwind output

Create favicons from text, emoji, or images for every platform

Format, validate, minify, and explore JSON with a tree view

Design box shadows visually with sliders and get CSS or Tailwind output

Generate placeholder text with themed variants and multiple output formats

Shape corners visually with per-corner controls and Tailwind output

Compress JPEG, PNG, and WebP images without losing quality

Pick colors, generate palettes, convert formats, and check contrast

Generate and convert Nostr keys with educational onboarding and built-in security