Line Numbering Lab

Consistent line numbers remove guesswork in support tickets, code reviews, and collaborative docs. Configure the padding and blank-line strategy that matches your workflow, then copy the numbered output instantly.

Docs

Quick samples

Processing runs on the server, so longer drafts and unicode stay intact.

Numbering controls

Pad with leading zeros based on the highest line number.

Keep blank lines as-is without numbering them.

Numbered output

Copy the final text with your selected numbering rules.

Awaiting text
Submit some content to see numbered output appear here.