Copy text
Copied!
✔ Runs entirely in your browser • ✔ No uploads • ✔ Free forever
About the Line Number Adder Tool
Our free online line number adder helps you add numbers to text lines instantly with multiple formatting options. Whether you're working with code snippets, documents, scripts, or lists, this tool provides professional line numbering for text with three styles: simple numbers (1 2 3), numbers with dots (1. 2. 3.), or numbers with brackets (1) 2) 3)).
Key Features:
- Multiple Numbering Formats - Choose from three professional numbering styles
- Empty Line Control - Option to number or skip empty lines
- Privacy First - All processing happens in your browser, no data uploaded
- Instant Processing - Get numbered text immediately with one click
- Free & Unlimited - No signup required, no usage limits
Common Use Cases:
- Code Documentation - Add line numbers to programming code for reference
- Academic Papers - Number lines in essays, research papers, or manuscripts
- Legal Documents - Add line references to contracts or legal texts
- Data Processing - Number lines in CSV data, logs, or text files
- Script Writing - Format screenplays or scripts with line numbers
How to Add Line Numbers to Your Text
- Paste your text into the input area above
- Choose numbering style from the three options
- Select "Number Empty Lines" if you want blank lines numbered
- Click "Add Line Numbers" to process instantly
- Copy the numbered text from the output area
Frequently Asked Questions
▶ How do I add line numbers to text online?
Use this free tool to add line numbers to text online. It supports different formats like 1, 1., or 1).
▶ What is the easiest way to add line numbers to a document?
The easiest way is to use this free online tool. Paste your text, choose a format, and get numbered lines instantly. It works for code, essays, and any text document.
▶ Can I choose different numbering styles?
Yes! You can choose between Numbers Only (1 2 3), With Dots (1. 2. 3.), and With Brackets (1) 2) 3)).
▶ What does “Number Empty Lines” mean?
When enabled, empty lines will also receive a line number. When disabled, empty lines are left unnumbered.
▶ Is my text safe?
Yes! All processing happens locally in your browser. No data is uploaded to any server.
▶ Is this tool free?
Absolutely. This tool is 100% free and always will be.
▶ What file types can I add line numbers to?
You can add line numbers to any plain text content including code files (.js, .py, .java), documents (.txt), scripts, logs, CSV data, or any text-based content. Just paste the text into the tool.
▶ Can I add line numbers to code snippets?
Yes! This tool is perfect for adding line numbers to programming code. It helps with code documentation, debugging references, and sharing code snippets with line references.
▶ Is there a limit to how many lines I can number?
No, there are no limits. You can add line numbers to texts of any length, from a few lines to thousands of lines. The tool processes everything instantly in your browser.