https://checker.free/en/diff/
Compare text and code quickly with the free Text & Code Diff Checker from Checker.Free. Instantly identify additions, deletions, modifications, and character-level changes between two versions of your content.
The tool supports text files and popular programming languages including JavaScript, TypeScript, Python, HTML, CSS, JSON, SQL, PHP, Java, C, C++, and Markdown. You can paste content or upload files using drag-and-drop, then view differences side-by-side or in a unified format.
It also includes character-level highlighting, whitespace and case-insensitive comparison options, change navigation, copying tools, and the ability to export comparisons as patch files. Processing runs locally in your browser, so your text and uploaded file contents are not transmitted to an external server.
