Line Break Converter
Convert between Windows, Unix, and Mac line-ending styles.
Fix mismatched line endings
Different systems mark the end of a line differently — Windows uses CRLF, Unix and macOS use LF — and mixing them causes files to show as one long line or to display stray characters. This tool converts your text between these styles so it opens cleanly wherever it is going.
It is the quick fix for a config file, a CSV, or a script that looks broken after moving between a Mac and a Windows machine, or that a diff tool flags as "every line changed" when nothing really did.
What it changes and privacy
It only rewrites the invisible line-ending characters, leaving your actual content untouched, so the text reads identically while behaving correctly in the target editor. The conversion happens in the browser and the file is never uploaded.
Frequently Asked Questions
What is the difference between CRLF and LF?
CRLF (used by Windows) marks a line end with two characters; LF (used by Unix and macOS) uses one. Mismatches cause display and diff problems.
Does it change my actual text?
No. Only the invisible line-ending characters are converted; your visible content is left exactly as it is.
Is the file uploaded?
No. Line endings are converted in your browser and nothing is sent to a server.
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