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Add Line Numbers

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Add sequential line numbers to any text or list. Customize the start number, padding and separator. Browser-based and private.

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Privacy & Security

All processing happens locally in your browser — your text is never uploaded.

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update v1.0
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How to Use

Paste text, set the start number and separator, and numbered lines appear instantly.

Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.

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