Add Line Numbers
Add Line Numbers
About Add Line Numbers
This tool adds line numbers to each line of your text. It is useful for code snippets, poetry, legal documents, or any content where line references are needed.
Customize the numbering format (decimal, zero-padded, Roman numerals, or letters), choose your separator style, set a starting number, and optionally skip empty lines.
Related Tools
What is the Add Line Numbers Tool?
The Add Line Numbers tool is a text utility that automatically adds sequential line numbers to each line of your text. Whether you need to number lines of code for reference, add verse numbers to poetry, or create numbered lists from paragraphs, this tool makes it easy.
The tool supports multiple numbering formats including standard decimal numbers, zero-padded numbers for alignment, Roman numerals for classical styling, and alphabetical letters. You can customize the separator between the number and text, set a custom starting number, and optionally skip numbering empty lines.
All processing happens directly in your browser, ensuring your text remains private and secure. The tool works instantly as you type or paste text, making it ideal for quick formatting tasks.
Common Uses for Adding Line Numbers
Code Documentation
Add line numbers to code snippets for documentation, tutorials, or code reviews. This makes it easy to reference specific lines when discussing code with team members or readers.
Legal Documents
Legal documents often require line numbers for reference during depositions, court filings, or contract reviews. Use zero-padded numbers for professional formatting.
Poetry and Scripture
Add verse numbers to poetry or scripture text. Roman numerals or letters provide a classical look appropriate for literary or religious content.
Educational Materials
Create numbered lists for quizzes, exercises, or study materials. Students can easily reference specific lines when answering questions or discussing content.
Frequently Asked Questions
What number formats are available?
The tool offers four number formats: Decimal (1, 2, 3...), Zero-padded (01, 02, 03... for aligned columns), Roman numerals (I, II, III...), and Letters (A, B, C... continuing to AA, AB, etc. for longer lists).
Can I customize the separator between numbers and text?
Yes, you can choose from several separator styles including period, colon, parenthesis, bracket, tab, or space. You can also define a custom separator using any characters you prefer.
Can I start numbering from a specific number?
Yes, you can set any starting number in the advanced options. This is useful when adding line numbers to text that continues from a previous page or section.
How are empty lines handled?
By default, empty lines are numbered like any other line. If you prefer, you can enable the skip empty lines option to leave blank lines unnumbered, which keeps the numbering sequence consistent for content lines only.
Is my text data secure?
Yes, all text processing happens directly in your browser. Your text is never sent to any server or stored anywhere. This client-side processing ensures complete privacy for sensitive documents or confidential content.