Number List Generator

Number List is a free tool that runs entirely in your browser, with no data ever sent to a server. Generate a sequence of numbers between two bounds, with the step and format of your choice.

What it's for

Generate a series of numbered file names ("photo-001.jpg" to "photo-050.jpg"), a range of identifiers for a test, or a simple sequence of numbers to paste into a spreadsheet.

What this tool does not do

This tool only applies the calculation described, with no check on the context of use. No limit is set by the tool itself; the only constraint is your device's memory.

Frequently asked questions

Can I generate a decreasing list?

Yes: set an end value smaller than the start, and the step then applies in decreasing order.

Is my data sent to a server?

No: the text you type or paste is processed entirely in your browser, on your device. It is never transmitted to a server.

Do I need to create an account or install anything?

No: the tool works directly in this page, with no sign-up and nothing to install.