How to Use Add Line Numbers

2. How to use Add Line Numbers

Here is the whole process, step by step. It takes less than a minute from opening the tool to seeing your result.

1. 1Fill in the Your text field.
2. 2Copy or download your result with the buttons under the output.

Your result updates as you type — there is nothing to press and nothing to wait for.

Everything runs in your browser — your files and text never leave your device.

3. What you can do with it

• Save your result with the "Copy result", "Download .txt" buttons under the tool.

4. Tips for best results

1. Your text never leaves your device — The tool runs entirely in your browser using JavaScript. Nothing is uploaded, so you can paste private documents without worry. That also means there is no account to create and no file to upload.
2. It works on your phone too — Open the tool in any modern browser on Android or iPhone. The layout adjusts to the screen and everything works the same way on a small screen as on a desktop.
3. Save your result before you leave — Use the "Copy result" button to keep a copy.

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