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ULID generator

Generate sortable ULIDs and decode the time inside one.

  • Free
  • No sign-up
  • Works on any device

About ULID generator

Generate ULIDs, 26-character identifiers that sort by creation time, and decode the timestamp stored in any ULID. The first 10 characters encode milliseconds and the last 16 are random, using Crockford Base32. Sortable IDs keep database indexes tidy compared to fully random UUIDs.

How to use ULID generator

  1. Type or paste your text in the box above.
  2. The result appears instantly as you type.
  3. Copy the result or download it as a file.

Why use this tool?

Also known as

Frequently asked questions

Why choose ULID over UUID v4?

ULIDs sort in the order they were created, which improves database index locality, and they are shorter and easier to read than UUID strings.

Is ULID generator free?

Yes. ULID generator on Toolipedia is free to use, with no sign-up and no watermark.

Is it safe to use?

Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.

Does it work on my phone?

Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.

Do I need an account?

No. Just open the page and use the tool. There's no sign-up and no email needed.

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