#️⃣ UUID/GUID Generator

Generate RFC 4122 UUIDs for databases, APIs, analytics, and apps. Choose version 1 or random version 4 identifiers.

Generate UUIDs instantly

Why teams use this tool

  • Supports both UUID v1 and random v4
  • Generate up to 100 identifiers in one click
  • One-tap copy to clipboard
  • No data ever leaves your device

Chuyển sang Tiếng Việt

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Popular use cases

  • Primary keys for distributed databases.
  • Session IDs and API request tokens.
  • Tracking identifiers for marketing campaigns.
  • Unique codes inside mobile and IoT apps.

Why it matters

  • No setup or SDK required.
  • Values generated locally for privacy.
  • Ideal for prototypes, QA, and microservices.
  • Works on every modern browser.

How to use

  1. Set how many UUIDs you need (up to 100).
  2. Choose version 1 or version 4.
  3. Click Generate UUIDs to produce the list.
  4. Copy the output and plug it into your workflow.

FAQ

Version 1 uses timestamps and node information, while version 4 is completely random and preferred for most web apps.

Collisions are extremely unlikely. Version 4 generates 122 bits of randomness, so duplicates are practically impossible in normal use.

No. All UUIDs are generated locally in your browser and never sent to our servers.