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AaText Tools

Add Line Numbers

Use this free online Add Line Numbers to add numbers to the start of each line. It works instantly in your browser, and your data never leaves your device.

About the Add Line Numbers

Number every line of a list or code with a custom start value and separator.

Also known as: number lines.

How to use the Add Line Numbers

  1. Paste your input into the box above, upload a file, or click Sample to try an example.
  2. Pick any options you need. The Add Line Numbers processes your input instantly as you type.
  3. Click Copy to copy the output or Download to save it as a file.

Features

  • Free with no signup and no daily limits
  • Private: runs entirely in your browser
  • Works on mobile, tablet and desktop
  • Upload files and download results
  • Live results as you type, with clear error messages
  • Clean, fast interface with no popups

Frequently asked questions

Is the Add Line Numbers free to use?

Yes. The Add Line Numbers is completely free with no signup, no limits on normal use and no watermark.

Is my data safe?

Yes. Everything is processed by JavaScript inside your own browser. Your text is never uploaded to our server or stored anywhere.

What else is this tool called?

People also search for it as number lines. It is the same free tool.