Bulk Cryptographically Secure UUID Generator
Generate random RFC 4122 Version 4 UUIDs instantly in bulk using the browser hardware-backed Web Crypto API (crypto.getRandomValues). Zero pseudo-random predictability, customizable uppercase/lowercase and hyphen options.
Key Technical Capabilities
- Hardware CSPRNG SecurityGenerates non-predictable UUIDs using OS cryptographic entropy.
- Bulk Batch ExportGenerate 1 to 500 UUIDs at once with 1-click clipboard copy or newline separation.
How to Generate UUIDs Online
- Select QuantityChoose how many UUIDs you need (e.g., 1, 10, 50, 100).
- Toggle FormattingChoose uppercase/lowercase and with or without hyphens.
- Copy UUIDsClick Generate and copy your UUIDs to clipboard.
Frequently Asked Questions
- Is this safe for database primary keys?
- Yes, UUID v4 provides 122 bits of randomness with negligible collision probability.