Prefix Lines
Add (or remove) text at the start of each line (toggle). Everything runs on your device — fast, free, and never sent to a server.
The result will appear here…
or press Ctrl+Enter
Everything runs in your browser. Your data is never sent to our servers.
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Example
Example Input
a b (prefix: - )
Example Output
- a - b
How to Use
- 1Paste or type your text into the Input field.
- 2Choose a mode (forward/reverse) at the top.
- 3If the tool has "More settings", set them as needed.
- 4Click the button (or press Ctrl+Enter), then copy the result.
About Prefix Lines
Prefix Lines adds your chosen text to the start of each line; reverse mode removes it.
It is useful for making bullet lists, commenting code, or adding markers.
FAQ
Is my text sent to a server?
No. Prefix Lines runs entirely in your browser — the text you enter never leaves your device.