Simple, fast developer utilities that run entirely in your browser. No data ever leaves your machine.
Test and debug regular expressions with real-time highlighting.
Beautify and validate complex SQL queries.
Find differences between two blocks of text or code.
Format, validate, and explore JSON data in a clear tree view.
Compare two JSON objects and find differences instantly.
Convert CSV data to JSON objects and vice versa.
Seamlessly switch between YAML and JSON formats.
Encode and decode text to/from Base64 format effortlessly.
Sanitize strings for URLs or decode URI-encoded data.
Convert special characters to HTML entities and back.
Generate placeholder text for design and development.
Generate fake names, addresses, and JSON objects for mock data.
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes for any text.
Decode and inspect JSON Web Tokens headers and payloads.
Generate valid JWTs for testing purposes with custom payloads.
Analyze how strong your password is and get improvement tips.
Generate cryptographically secure v4 UUIDs.
Generate hundreds of UUIDs at once for batch operations.
Convert Unix timestamps to human-readable dates and back.
Visual builder for cron expressions with readable descriptions.
Switch between HEX, RGB, HSL, and CMYK colors instantly.