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ULID Generator & Decoder

Generate ULIDs (sortable unique IDs) or paste one to see the exact date and time it was created.

Tool inputs stay in your browser · optional AI search sends your query

Good to know: A ULID starts with the creation time, so IDs sort by time — great for database keys. 26 characters, no confusing letters.

How to use it (step by step)

  1. 1Choose your options: “What to do”, “How many”, “ULID to decode”.
  2. 2Press “Run”.
  3. 3Copy the result with the Copy button. Press the button again for a fresh result.

Words to know

ULID / Nano ID
Kinds of unique IDs. Some (ULID, UUID v7) start with the time, so they sort in creation order.
Unix timestamp
Time counted in seconds since January 1, 1970. Computers use it because it is just one number.

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