Runs locally
Prefix Lines
Add the same prefix to every line.
Ctrl+Enter runs. Ctrl+Shift+Backspace clears.
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Add the same prefix to every line. Runs in the browser. Nothing is uploaded.
About this tool
Turn a plain list into bullets, comment out a block of code with //, or add a tag to every line of a file. Enter the prefix once and it is added to each line.
How to use it
- 01
Paste the lines.
- 02
Type the prefix, for example "- " or "// ".
- 03
Copy the prefixed text.
FAQ
Frequently asked questions
Is the prefix added to empty lines?
Yes. Every line gets the prefix, including empty ones.
Can I add text at the end of lines?
Not with this tool. It only adds text at the start of each line.