The Add Line Numbers add line numbers to each line of text. It runs entirely in your browser — nothing is sent to a server.
Steps
- Paste or type your text in the Input box above.
- Click Run Add Line Numbers (or use the Load sample button to try it first).
- Copy the result with one click.
Tips
- Your text stays on your device. We never upload or store it.
- The tool works offline once the page has loaded.
- Need to do this often? Bookmark this page and come back anytime.
About the Add Line Numbers
Add line numbers to the start of each line. Customizable separator (period, tab, parenthesis) and start number.