Line Number Adder

Prefix each line of text with configurable line numbers.

Custom start number
Padding width control
Copy-ready numbered output

Text input

Add aligned line numbers to make references and reviews easier to discuss.

Numbered output

A quick way to make snippets easier to reference in docs and support threads.

Common use cases

  • Numbering log excerpts for support
  • Preparing step-by-step text references
  • Making long snippets easier to discuss in review

FAQ

Can I start from a number other than one?

Yes. You can choose a starting value that fits your reference or review workflow.

Does it preserve the original line order?

Yes. The tool only prefixes each line and does not reorder or remove content.

More guides