Handy daily-use utilities. All tools run in your browser — nothing is sent to any server.
Format, validate, and minify JSON
Generate fake API data with custom schemas
Encode & decode Base64 strings
Encode and decode URL components
Live regex playground with match highlighting
Side-by-side editor and rendered preview
Compare two texts line by line
Generate placeholder text in any format
Decode header, payload & expiry from any JWT
MD5, SHA-1, SHA-256, SHA-512 hashes
Generate strong, secure random passwords
Generate harmonious color palettes
Create favicons and Open Graph images
Unix epoch ↔ human-readable date