Compiler Explorer has integrated Sonar static analysis, allowing users to lint their code as they write it in the online IDE. This integration provides issue highlighting, automatic fixes, and more, helping developers identify and fix errors earlier. The tool is particularly useful for prototyping, demoing, sharing code snippets, validating hypotheses, and improving code quality. It can be used in various scenarios, such as experimenting with new language features, preparing presentations, or debugging code issues. With Sonar analysis, users can receive detailed issue descriptions, automatic fixes, and links to further explanations, making it easier to identify and fix errors. The integration is currently limited to GCC and Clang compilers for C and C++ languages but encourages users to explore other Sonar tools for broader support.