Can I start from zero?

Yes. Set the start number to any non-negative integer.

Does it add numbers to blank lines?

Yes. Empty lines still get a number prefix.

Prefix rows with numbers.

Theme

Private by design: This tool runs in your browser — your data is not uploaded.

Text

Start at

Zero-pad width (0 = auto)

Suffix after number

Result

Prefix each line with 1., 2., 3. or zero-padded 001 — handy for code snippets, meeting notes, or numbered lists.

Can I start from zero?: Yes. Set the start number to any non-negative integer.
Does it add numbers to blank lines?: Yes. Empty lines still get a number prefix.

Last updated: 2026-06-05