Line Ending Converter — CRLF ↔ LF

CRLF vs LF

Text files end each line with an invisible character. Unix, Linux and macOS use LF (\n, line feed). Windows uses CRLF (\r\n, carriage return + line feed). Classic Mac OS used a lone CR. Most editors handle both, but many tools don’t: a shell script with CRLF fails with /bin/bash^M: bad interpreter, Docker entrypoints break, and diffs show every line as changed.

Fixing it for good in Git

Add a .gitattributes file with * text=auto eol=lf (and *.bat text eol=crlf for Windows batch files) so Git normalizes endings on commit. Setting git config --global core.autocrlf input on macOS/Linux and true on Windows also helps. After adding .gitattributes, run git add --renormalize . once.

Mixed line endings

Files edited on different systems often contain both kinds. The counters show exactly how many of each the text contains, and converting makes them uniform.

Private by design

Text and files are converted in your browser and never uploaded.

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