Add Line Numbers — Free Online Tool

Prefix every line with a number, making logs, notes, lyrics, and code excerpts easier to reference in a discussion.

This private tool runs locally in your browser. Your text is never uploaded or sent to a server.

How to use Add Line Numbers

Paste multiline text
Set the numbering options
Copy the numbered lines

Example

“Apple Banana” becomes “1. Apple 2. Banana”.

Useful tips

Empty lines can affect numbering
Use the result when line references matter

JavaScript enables the interactive tool above.

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