Add Line Numbers
Add Line Numbers is a free browser tool that lets you number every line in pasted text. All counting, matching and rewriting happens in JavaScript on the page itself, so even long confidential drafts stay in your browser. It is used most by writers and editors cleaning up a draft before submission. Handles full Unicode, so accented Latin, Cyrillic, Arabic, Chinese and emoji all count correctly. Free, unlimited, and free of the upsells most tools of this kind carry.
Key features
- Handles full Unicode, so accented Latin, Cyrillic, Arabic, Chinese and emoji all count correctly.
- Works on documents of tens of thousands of words without lag.
- Works on desktop, tablet and phone — no separate app to install.
- Built to do one job properly rather than twenty jobs badly.
How to use Add Line Numbers
- Paste your text: Paste or type into the box above. It accepts anything from a sentence to a full manuscript.
- Choose what you need: Set the options that match your task — the result updates as you change them.
- Copy the result: Copy the output with one click and paste it wherever you are working.
Frequently asked questions
- How much text can I paste in? — Tens of thousands of words is comfortable. The only real limit is how much your browser will hold.
- Can I use it offline? — Once the page has loaded, yes — the work happens locally, so a dropped connection will not interrupt you.
- Is there any signup? — None. Add Line Numbers has no account, no email capture and no usage cap.
- Is my text stored when I use Add Line Numbers? — No. Add Line Numbers processes the text in the page itself. Nothing is transmitted or saved, which matters for unpublished or confidential writing.