Last updated: April 7, 2026
Best Free UUID Generators Online in 2026
Quick Answer
DevToolHQ is the best UUID generator for developers — it supports UUID v4 (random) and UUID v7 (time-sortable), runs client-side, and integrates with 50+ other developer tools. For bulk UUID generation, uuidgenerator.net generates up to 10,000 UUIDs at once.
Rankings
| Tool / Option | Description | Rating |
|---|---|---|
| DevToolHQ | UUID v4 + v7, client-side, bulk generation, integrated toolkit | ★★★★★ |
| UUIDgenerator.net | Bulk generation, multiple formats (v1, v3, v4, v5) | ★★★★☆ |
| UUID online | Simple, single UUID | ★★★☆☆ |
| crypto.randomUUID() | Built-in browser API — no tool needed | ★★★★★ |
Verdict
For one-off UUID generation, DevToolHQ is the best integrated option. For bulk UUID generation, UUIDgenerator.net supports thousands at once. For production code, use crypto.randomUUID() (browser) or the uuid npm package.
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