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Add line numbers to each line of your text.
🔢 Adds line numbers to each line. Useful for code review, transcripts, and references.
This tool adds line numbers to each line of your text, formatted with right-aligned numbers and consistent spacing. Useful for code review, transcripts, and any text you need to reference by line.
The Add Line Numbers handles add line numbersdirectly in your browser. Paste or type your input, and the tool processes it instantly — no upload, no signup, no waiting. It's built for the moments when you need a quick transformation and don't want to leave your workflow.
Because the tool runs client-side, it's fast and private. Your text never touches a server, which makes it safe for sensitive content. The interface is keyboard-friendly and works on any device with a modern browser.
Common uses: people reach for this tool when they need to use a add line numbers to text, number each line of text, line numbering for code review, or prefix lines with numbers.
Browser-based tools like this one have a few real advantages over installed software or manual methods:
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