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Decode a ULID

Read the timestamp and randomness from a ULID.

No login required

πŸ’‘ 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

πŸ†”

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

πŸ•’

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

πŸ”€

ULIDs are case-insensitive and URL-safe β€” paste in any case.

πŸ”’

Everything is decoded locally in your browser.

How It Works

1
Enter
Enter your data into the tool above. Everything stays local to your browser.
2
Process
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Download
Get your result instantly. Nothing is stored after you leave the page β€” complete privacy.

Why use ours?

βœ“Completely free β€” no hidden costs, ever
βœ“No account, email, or login required
βœ“Files never leave your device
βœ“No file size limits whatsoever
βœ“No watermarks on any output

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Frequently Asked Questions