Add Line Numbers
Add a number to the start of every line in your text. Line numbering is useful for referencing specific lines when discussing code, turning a plain list into a numbered list, or preparing text for a document where each entry needs an index. You control where the count starts, the separator between the number and the text such as a dot, a bracket or a tab, and whether numbers are padded with leading zeros so they all line up neatly. Blank lines can be numbered or skipped depending on your preference. All the numbering runs in your browser, so nothing is sent anywhere, and you can copy the result straight into your editor or document.
How to use Add Line Numbers
- Paste your lines or code.
- Set the start number and separator.
- Enable zero padding if you want aligned numbers.
- Copy the numbered output.
Frequently asked questions
Can I choose which number to start from?
Yes. You can set a custom start number so numbering can begin at 0, 1 or any value you need.
What is zero padding for?
Zero padding aligns numbers by width, so 1 becomes 001, keeping the numbers neatly right aligned in longer lists.
Can I change the separator after each number?
Yes. You can set the separator, such as a period, colon or space, that appears between the line number and the text.
What is Add Line Numbers?
Add a number to the start of every line in your text. Line numbering is useful for referencing specific lines when discussing code, turning a plain list into a numbered list, or preparing text for a document where each entry needs an index.
Is Add Line Numbers free to use?
Yes. Add Line Numbers is completely free, with no sign-up and no usage limits.
Does Add Line Numbers work in a web browser?
Yes. Add Line Numbers runs in any modern web browser. There is nothing to download or install.
Is my data private with Add Line Numbers?
Yes. Add Line Numbers runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
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