Line Numbering Tool

Add sequential line numbers with custom starting index, zero-padding, and delimiters.

About this tool

Number steps, instructions, legal clauses, or code snippets with perfectly aligned sequential line numbers.

How to use this tool

  1. Paste your text into the editor.
  2. Configure start number, zero-padding width, and delimiter format.
  3. Click Add Line Numbers and copy the numbered document.

How it works

Iterates through text lines, calculates padded integer strings, and formats with your chosen delimiter.

When to use this tool

  • Numbering legal transcripts and contract clauses for reference.
  • Formatting step-by-step tutorial guides and recipes.

Frequently asked questions

What does pad digits do?

Padding adds leading zeros (e.g. padding 3 turns 1 into 001) ensuring vertical alignment.

Limitations

Supports start numbers from -999999 to 999999.

Privacy

100% client-side memory execution.