Line Number Generator
Add a number to the start of every line.
Free online line number generator. Prefix every line of your text with a sequential number, with adjustable starting number, separator and optional zero-padding. Runs in your browser.
How to use the Line Number Generator
- 01Paste your lines into the input box.
- 02Set the starting number and choose a separator.
- 03Optionally zero-pad the numbers, then copy the numbered result.
Frequently asked questions
Can I start numbering from something other than 1?
Yes. Set any starting number — including 0 — and every line is numbered sequentially from there.
What does zero-padding do?
Zero-padding aligns the numbers to the same width, e.g. 01, 02 … 10, so numbered lists line up neatly in fixed-width fonts.