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Convert line endings

A CSV written on Windows can be read as a single line by Linux tooling. Convert CRLF to LF here and that class of bug disappears.

No uploadNo sign-upLine ending detected

Process your CSV Runs on your device

Drop a CSV here

or click to choose · Shift_JIS / UTF-8 detected

Output line endings omit the trailing newline add a BOM

How to use

Newlines inside quoted cells are preserved; only record separators change. A file with mixed endings is classified by the majority.

CRLF or LF — which one?

CRLF for Windows Excel and Notepad, LF for Linux, macOS, Git and web servers.

How do I know the current ending?

The result panel shows what was detected, including mixed endings.

Will in-cell line breaks be damaged?

No — newlines inside quoted cells are preserved, as the CSV spec requires.

Can I drop the trailing newline?

Yes, there is an option to omit the final line break.

Is my file uploaded?

No, conversion happens locally.