Decode a ULID

Read the timestamp and randomness from a ULID.

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UUID or ULID

💡 Versions 1, 6, and 7 (and ULIDs) embed a creation time, which is decoded above. Versions 4 are fully random and carry no timestamp. Everything is parsed in your browser.

ULID tips

🆔

A ULID packs a 48-bit millisecond timestamp into its first 10 Crockford base32 characters.

🕒

This tool decodes that timestamp to a date and splits out the 80 random bits.

🔤

ULIDs are case-insensitive and URL-safe — paste in any case.

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Everything is decoded locally in your browser.

Hoe het werkt

Invoer

Enter your data into the tool above. Everything stays local to your browser.

Verwerken

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

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Get your result instantly. Nothing is stored after you leave the page — complete privacy.

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Also check out…

🏷️

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🕒

Extract the Timestamp from a UUIDv7

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🐞

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🎓

Learn How UUIDs Are Structured

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