Text Tools
Add a prefix to every line in a text block.
Use this prefix lines tool to add the same prefix to each line of text. It is useful for comments, bullets, code formatting, labels, and list preparation.
Use this prefix lines tool to add the same prefix to each line of text. It is useful for comments, bullets, code formatting, labels, and list preparation.
Use prefix lines when you need a fast browser-based result without extra setup. It works well for quick checks, one-off tasks, and routine formatting or calculation work.
Read step-by-step usage guidance, best practices, and common mistakes.
See common questions and answers about input, output, and tool usage.
Review practical input and output examples before running the tool.
Find similar and supporting tools for adjacent actions and follow-up tasks.
Input
// line one line two
Output
//line one //line two
Adds the same prefix to every line.
Input
- Apple Banana
Output
- Apple - Banana
Useful for turning plain lines into bullet-style lists.
Fix: Put the prefix first, then a blank line, then the body text.
Fix: This tool prefixes every line, including empty ones.
Fix: Use a short consistent prefix for cleaner results.
It adds the same prefix to every line in the text.
Put the prefix on the first line, then a blank line, then the text.
Yes. It processes every line in the block.
Yes. Short prefixes like //, #, -, or > work well.
Prefix Lines adds text at the start of each line, while Suffix Lines adds text at the end.