Add Line Numbers
Text ToolsAdd line numbers to text or code. Free, private — all processing in your browser.
How to use
- 1. Enter or paste your data in the input area above
- 2. Adjust settings or options as needed
- 3. Click the action button or see real-time results
- 4. Copy the result with the copy button
All processing happens in your browser. Nothing is sent to any server.
About this tool
Add line numbers to any text with customizable start number, padding, and separator. Set the starting number (default 1), choose a separator between the number and text (period, colon, tab, pipe), and the tool automatically pads numbers for consistent alignment. Use it for preparing code snippets for documentation, numbering list items, adding reference numbers to data, and formatting text for presentations or reports.
FAQ
▶Is the Add Line Numbers free to use?
Yes, completely free. No signup, no premium tiers, no hidden costs.
▶Is my data safe when using the Add Line Numbers?
All processing happens in your browser. Your data never leaves your device.
▶Does the Add Line Numbers work on mobile?
Yes, fully responsive. Works on smartphones, tablets, and desktops.
▶Do I need to install anything?
No. It runs entirely in your web browser. Just open the page and use it.
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