Developer Tools

Format, validate and minify JSON.

Decode header and payload of a JWT.

Generate UUIDs v4 in bulk.

Test regex patterns in real time.

Encode and decode Base64.

Format SQL queries with multiple dialects.

Format and indent HTML.

Minify CSS to the smallest size.

Minify JavaScript to the smallest size.

Build and explain cron expressions.

Markdown editor with real-time HTML preview.

Generate QR codes for URL, Wi-Fi, email, SMS and more.

Generate strong passwords with advanced options.

Analyze entropy and time to crack a password.

SHA-1, SHA-256, SHA-384 and SHA-512 from text and files.

Sign messages with HMAC-SHA.

Generate signed JWT tokens (HS256/384/512).

Encode and decode URLs.

Encrypt text with a password via AES-GCM.