About this tool
Prepend line numbers to every line of text with configurable formatting.
How it works
- 01Paste your content or select a file
- 02The tool processes it locally in your browser
- 03Download or copy the result
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Add Line Numbers
Prepend line numbers to every line of text with configurable formatting.
Processed locally
Input
Runs in your browser with WebAssembly. Your text is never sent to a server.
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