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UUID / Random Generator
Batch-generate UUID v4, random passwords and random strings, from a crypto-strength local random source.
🔒 Local · no uploadsFree & unlimitedUUID v4Batch generateOne-click copy
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Please select at least one character set.
About randomness & privacy
- All IDs and passwords are generated locally using the browser's built-in crypto-strength random source (crypto.getRandomValues) — no network calls, no storage, no duplicate output.
- UUID v4 has 122 random bits; the collision probability is about 1 in 2¹²², so it's safe as a database primary key or request-tracing ID.
- For passwords, use 16+ characters with mixed case and digits; add symbols based on target-system limits.