UUID Generator
Generate UUID v4 (random) identifiers in bulk. Uses the browser's crypto.randomUUID() — cryptographically random.
UUIDs
Click Generate to create UUIDs.
More tools
UUID Generator
Dev / SEO tool
Current
MD5 Hash
Non-crypto checksum
SHA Hash
SHA-256 / 512
Random Word
Random words
UUID Generator
UUID v4 is a 128-bit random identifier — collision probability is effectively zero. Use for primary keys, idempotency tokens, correlation IDs, request tracing, and anywhere you need a unique string without coordinating with other systems.
Format options
- Lowercase (default) or uppercase
- With or without dashes
- Wrapped in curly braces for Windows-style GUIDs
- Bulk generation up to 1,000 per click
Uses crypto.randomUUID() — W3C Web Crypto API, available in every modern browser.