Diff Viewer

Compare two files and view differences.

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What is the Diff Viewer?

The Diff Viewer allows developers to compare two text or code files and instantly see the differences line by line. It supports common formats such as TXT, JSON, HTML, CSS, JS, YAML, Markdown, and more. The tool highlights added, removed, and unchanged lines, making it ideal for debugging, version control, code reviews, and quick file comparisons. Everything runs entirely client‑side, ensuring full privacy and fast performance. A simple and efficient way to inspect changes without installing additional software.