UUID Generator
Generate RFC-compliant UUIDs in bulk
How It Works
Select Your File
Upload, drag & drop, or paste directly from clipboard.
Configure Options
Set quality level and output format.
Download Result
Processed entirely in your browser. Download instantly.
About UUID Generator
Generate one or more RFC 4122 compliant UUIDs (Universally Unique Identifiers) using the browser's cryptographically secure random number generator (crypto.randomUUID). Choose between UUID v4 (random) and UUID v5 (name-based SHA-1). Generate up to 100 UUIDs at once, copy the full list with one click, or copy individually. Output format options include standard hyphenated UUID, lowercase, uppercase, and without hyphens. Ideal for database primary keys, API resource identifiers, testing data, and any use case requiring unique identifiers. Runs entirely in your browser.
Frequently Asked Questions
Are the generated UUIDs truly unique?
UUID v4 uses 122 bits of cryptographic randomness. The probability of collision is negligibly small for practical use.
Can I generate UUID v5 (name-based)?
Yes. Select UUID v5 and provide a namespace and name to generate a deterministic UUID.
Can I generate multiple UUIDs at once?
Yes. Set the count (up to 100) and all UUIDs are generated and displayed for bulk copy.