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🔢 Add Line Numbers

Automatically number each line — fast, private, in your browser.

Paste your text:

Skip empty lines

Leading zero padding

Pad width (digits)

Enabled when leading zeros is on.

Preserve indentation

Start number from

Step

Custom separator

Number position

Start

End

Optional prefix (before number)

Optional suffix (after number)

Numbered output:

How to use

Paste your text into the input box.
Choose numbering options (start, step, separator, padding, position).
Click Add Line Numbers, then copy or download the result.

Add Line Numbers to Text Instantly

Perfect for code snippets, poetry, transcripts, and reviews. Customize where numbers appear, starting value, step, and whether to keep indentation. Processing is 100% local—your text never leaves your device.

Need more cleanup? Try Remove Extra Spaces or Case Converter.

FAQ

Does this upload my text?

No. Everything runs in your browser; nothing is uploaded.

How do I add 01, 02, 03…?

Enable Leading zero padding and set the desired Pad width (e.g., 2).

Can I place numbers at the end?

Yes, choose Number position → End.