Text and Code Comparison Tool

Compare texts, code and files and see exactly what changed.

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Paste or upload both texts above and click "Compare" to see the differences.

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Compare C Code Online

Use MyTextDiff to compare two files or snippets of C code and quickly identify what changed in functions, variables, structs and logic in your program. The comparison is done right in the browser, with nothing to install.

When you select C for syntax highlighting, the result colors comments (// and /* */), strings, preprocessor directives (like #include and #define) and keywords like int, struct, typedef and sizeof.

Can I compare .c files directly?

Yes. You can paste the code or upload the .c file directly into the comparison fields.

Does the syntax highlighting recognize preprocessor directives like #include?

Yes. Directives such as #include, #define and #ifdef are recognized and highlighted separately from the language's other keywords.