Online CPP IDE is a web-based tool powered by ACE code editor. This tool can be used to learn, build, run, test your c and c++ programs. You can open the script from your local and continue to build using this IDE. Code and output can be downloaded to local.
This tool serves an execellent purpose for people who are in the intial phase of learing c/c++. It's one of the quick, robust, powerful online compilers for c language.