Ad placeholder
Add Line Numbers
Add line numbers to any text or code snippet with a custom start value and separator.
About this add line numbers tool
Add line numbers to text or code with a custom start value and separator. Handy for reviewing code snippets, quoting documents, or referencing specific lines.
Everything runs in your browser, so your text stays on your device and is not uploaded by this tool.
FAQ
Can I start numbering from 0 (or any number)?
Yes. Change the “Start” value to whatever you need.
What separator should I use?
For text, “. ” or “) ” works well. For code, “: ” is a common choice.
Will it number empty lines?
It usually numbers each line as provided. Review the output if you have blank lines you want to keep or remove.
Does it change my text content?
It only adds a prefix to each line. The line content stays the same.
Is my text stored anywhere?
No. The tool runs locally in your browser and doesn’t upload your text.
More text tools
Ad placeholder