Is it safe to paste sensitive or private code?

Yes — the comparison runs 100% in your browser's memory, so nothing is ever sent or stored anywhere else.

Does it catch whitespace and line-break differences?

Yes, it compares tabs, spaces, and line breaks exactly, so code that only differs in indentation still shows up as a changed line.

Take a screenshot of the result, or copy the highlighted changes and paste them into a document or chat message.

Compare two blocks of text or code side by side, or line by line, with color-coded additions and deletions

Instantly compares two pieces of text or code line by line and highlights every addition, deletion, and change in color.

도구를 불러오는 중…

🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.

Is it safe to paste sensitive or private code?: Yes — the comparison runs 100% in your browser's memory, so nothing is ever sent or stored anywhere else.
Does it catch whitespace and line-break differences?: Yes, it compares tabs, spaces, and line breaks exactly, so code that only differs in indentation still shows up as a changed line.
How do I share the comparison with someone else?: Take a screenshot of the result, or copy the highlighted changes and paste them into a document or chat message.