Cleaning ignored files in Git removes build artifacts, temporary files, and other content specified in .gitignore that may accumulate in your working directory. As the creator of CoreUI with extensive Git experience across numerous projects, I regularly clean ignored files to free up disk space and maintain repository hygiene. The most thorough approach uses git clean with the -x flag to remove both untracked and ignored files completely. This method provides deep cleanup while respecting Git’s file tracking configuration.