How to use ULID Generator

What it does

Generate Universally Unique Lexicographically Sortable Identifiers offline. It runs entirely in your browser — your input never leaves your device.

Options

Every setting this tool exposes, straight from the code that validates it.

Worked example

Run these settings on the tool page:

• count: 5
• casing: Uppercase

You get:

01KYVRNJZ0MWRN14FKVPZ24GQ3
01KYVRNJZ1XFA6M4PMYM4G70KG
01KYVRNJZ2XR9P1KVZ7KT2NE0R
01KYVRNJZ3Q6QAT0P0CFJ1D4TD
01KYVRNJZ4FJ334VM3ECQQEFPF

Getting the result you want

Most of the control here is in the options above. If the output is not what you expected, the setting to check first is count and casing — those change the shape of the output rather than the input it accepts.

Troubleshooting

• A value is rejected. count accepts 1–1000. Anything outside that is refused rather than silently clamped.
• It is slow on very large input. Everything runs in your browser, so speed depends on your device. Very large inputs are best split up, or run through the API where the work happens on our servers.

Automating it

The same logic is available as a REST endpoint, so you can run it from a script, a CI job or your own app.

Bash
curl "https://api.toolsxpo.com/v1/ulid-generator" \
  -H "Authorization: Bearer $TOOLSXPO_KEY"

It costs 1 credit per successful call. See the full endpoint reference, or try it in the playground.

Related tools

• Password Generator
• Random Number Generator
• Random String Generator
• Bulk UUID Generator
• UUID Generator