Add Line Numbers to Text
Instantly append sequential line numbers to any text document. Our free tool adds numbers and custom separators locally, keeping your proprietary code completely secure.
What is the Add Line Numbers Tool?
When sharing code snippets in a plain text document, referencing a legal contract, or organizing a massive list, adding sequential line numbers is essential for clarity. However, manual numbering is tedious and impossible for large files. This tool automates the task, instantly appending ascending numbers to the start of every line. You can customize the starting number and the separator (like a dot, parenthesis, or pipe). To ensure your legal or proprietary text remains confidential, all processing is executed by your browser locally.
Why Use Our Add Line Numbers?
- Instant Formatting: Numbers thousands of lines in milliseconds.
- Custom Separators: Choose between '1.', '1)', or '1 | ' styles.
- Zero Data Tracking: Your private documents are never uploaded.
- Skip Blanks: Option to only number lines that actually contain text.
How to Use the Add Line Numbers
Paste your raw text into the input field.
Set your starting number (usually 1).
Choose your preferred separator style.
Copy the fully numbered document to your clipboard.
Frequently Asked Questions
Yes, you can input any starting integer (e.g., 100) and the tool will count up from there.
You can use the 'Skip Blank Lines' toggle to ensure only lines with actual content receive a number.
Yes, all processing happens entirely within your web browser.
All file processing is performed locally in your web browser. We do not upload, store, or view your data.