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WorkspaceUUID Generator & Inspector
Workspaces1/10

Active workspace: Personal. Open tools and saved data belong to this workspace.

UUID & ULID Generator

Local processing
Generate random, time-ordered and namespace identifiers, or inspect embedded timestamps

RFC 9562 · ULID specification

Standards, sources and review dates
  • UUID · RFC 9562 · May 2024 · Reviewed

    v3/v5 namespace-based UUIDs, v4 randomness, v7 millisecond timestamp and version inspection. UUIDs are not secrets. Review interval: 90 days.

  • ULID · Canonical 48-bit time / 80-bit randomness specification · Reviewed

    26-character Crockford Base32 encoding, timestamp inspection and page-session monotonic generation with overflow rejection. Review interval: 180 days.