Ducker Tools - ULID Generator
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Click Generate to create ULIDs
About ULID
- 26 characters — Crockford Base32 encoded (no ambiguous I, L, O, U)
- Sortable — lexicographically sortable by creation time
- Timestamp — first 10 chars encode a 48-bit millisecond timestamp
- Randomness — last 16 chars are 80 bits of cryptographic randomness
- Monotonic mode — guarantees strict ordering within the same millisecond
- UUID compatible — can be stored in a UUID field (128 bits)