Crypto

UUID Generator

Generate UUID v4 (random). RFC 4122. 100% client-side.

1–100

How to use

  1. Enter a domain, URL, or value relevant to UUID Generator.
  2. Run the check and review the output carefully.
  3. Apply recommended fixes, then run the check again to verify.

Common use cases

  • Pre-deployment validation for UUID Generator.
  • Incident triage when security checks fail in production.
  • Periodic security review as part of technical SEO and hardening.

Example inputs

550e8400-e29b-41d4-a716-446655440000

Common issues and fixes

Non-random UUID

UUID v4 must be random. Don't use sequential or predictable values for security.

Wrong UUID version

v4 is random. v1 uses MAC+timestamp. Ensure correct version for your use case.

Collision risk

v4 has 122 random bits. Collisions are astronomically rare but use crypto.getRandomValues.

Recommended remediation

Use crypto.randomUUID() or RFC 4122 compliant generator. Store as string. For APIs prefer UUID over integer IDs.

FAQ

Is UUID Generator free to use?

Yes. This tool is free and can be used without account registration.

Do you store submitted values?

Only the minimum processing needed for the check. For client-side tools, data stays in your browser.

How should I use these results?

Use the output as a diagnostic baseline, apply fixes in your stack, then re-run the check to confirm remediation.

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Generate secure random passwords with crypto.getRandomValues. Length 8–64, customizable chars.

API Key Generator

Generate secure random API keys. Hex or URL-safe Base64. 100% client-side.