Developer Tools
UUID generator
Generate individual UUID v4 values or batches of up to 100 using browser cryptographic randomness. Copy or download the list without signing up.
UUID v4 using browser cryptographic randomness. Up to 100 per batch.
What this tool does
Create identifiers for synthetic data, resource names and tests. UUID v4 provides randomness; it does not prove identity or replace access controls.
How to use it
- Choose a count from 1 to 100.
- Select Generate; each run creates a new sample.
- Copy or download the list and check its destination before use.
Verifiable example
- Input
- Count: 3.
- Expected result
- Three UUIDs matching xxxxxxxx-xxxx-4xxx-[89ab]xxx-xxxxxxxxxxxx.
Limitations to review
- UUID v4 only, up to 100 per run. Requires crypto.randomUUID.
- No Math.random fallback or remote service. Collisions are unlikely, not mathematically impossible.
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