Number Lines
Add line numbers to your text with custom formatting options. Free and easy to use.
Input Text
Numbered Output
About Number Lines Tool
Our free online tool adds line numbers to any text with customizable starting number and separator format. Perfect for code documentation, creating numbered lists, legal documents, or referencing specific lines in discussions.
All processing happens locally in your browser, ensuring your text remains private and secure. No data is uploaded to any server.
Numbering Options
Start Number
Choose any number to start counting from. Useful when continuing a list or numbering from a specific point.
Separator
Customize the text between the number and line content. Common options: ". " (period space), ") " (parenthesis), ": " (colon), or tab.
Number All Lines
Adds sequential numbers to every line including empty lines. Each line gets the next number in sequence.
Skip Empty Lines
Numbers only lines with content. Empty lines remain unnumbered while preserving their position in the text.
Common Use Cases
- Adding line numbers to code snippets for documentation
- Creating numbered lists from plain text
- Formatting legal documents with line references
- Preparing educational materials and worksheets
- Creating references for manuscript review
- Numbering steps in instructions or procedures
- Adding line numbers for discussion or feedback
- Formatting poetry or verse with line numbers
Features
- Custom starting number (start from any number)
- Flexible separator format
- Option to skip empty lines
- Real-time character, word, and line statistics
- Download numbered text as .txt file
- Copy to clipboard functionality
- 100% client-side processing for privacy
- No registration or installation required
Frequently Asked Questions
How do I add line numbers to text?
Paste your text into the input box, set your preferred starting number and separator, then click 'Number All Lines' to add line numbers to every line.
Can I start numbering from a number other than 1?
Yes, enter any starting number you want in the 'Start Number' field. The tool will number lines sequentially from that number.
What separator options are available?
You can use any separator between the number and text. Common options include ". " (period space), ") " (parenthesis space), ": " (colon space), or a tab character.
Can I skip empty lines when numbering?
Yes, click 'Skip Empty Lines' to number only lines with content. Empty lines will remain unnumbered but preserve their position.
Is my text data secure?
All processing happens locally in your browser. Your text is never uploaded to any server, ensuring complete privacy and security.
Can I use this for code line numbers?
Yes, this tool works great for adding line numbers to code snippets. Use a tab or colon separator for cleaner code formatting.