Add Line Numbers

text

Add line numbers to text. Customize start number, separator, and zero-padding.

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Input

Options

Start number(min 0)

Separator

Pad with zeros

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What is Add Line Numbers?

Add Line Numbers is a free online text processing tool. Add line numbers to text. Customize start number, separator, and zero-padding. Whether you're a developer, writer, or student, this tool helps you manipulate text quickly without needing to write code or install software.

How to Use Add Line Numbers

1
Paste or type your text into the input field.
2
Click the Run button to process your input.
3
Copy the result from the output panel using the Copy button, or download it as a text file.

Common Use Cases

→Formatting text for different platforms and use cases.
→Processing large amounts of text data quickly.
→Converting text between different formats and conventions.

Frequently Asked Questions

Is Add Line Numbers free to use?

Yes, Add Line Numbers is completely free with no usage limits. No account, signup, or payment is required.

Is my data sent to a server?

No. Add Line Numbers runs entirely in your browser. Your data never leaves your device and is never sent to any server.

Does this tool work on mobile devices?

Yes, Add Line Numbers is fully responsive and works on smartphones and tablets. It runs in any modern browser including Chrome, Firefox, Safari, and Edge.

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