🔒 No upload — 100% in your browser

Add Line Numbers

Add line numbers to any text instantly. Paste your text, pick a separator and start number, and every line gets numbered — nothing is uploaded, everything runs in your browser.

How to Add Line Numbers to Text

This tool adds line numbers to any text in a single click — useful for scripts, quotes, reference lists, or excerpts you want to cite line by line. Paste your text into the box, choose where the numbering should start and how large the step between numbers should be, then pick a separator style such as a dot, colon, or pipe. If you enable zero-padding, numbers like 1 and 12 are written as 01 and 12 so columns stay aligned. The numbered result appears instantly in a second box, where you can copy it with one click. Everything is processed locally in your browser: your text never leaves your device, there is no upload, no signup, and no file limits.

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