When comparing CLion vs CodeLite, the Slant community recommends CodeLite for most people. In the question“What are the best IDEs for C++ on Linux?” CodeLite is ranked 3rd while CLion is ranked 5th. The most important reason people chose CodeLite is:
CodeLite is [actively developed](http://downloads.codelite.org/) with activity almost daily on [Github](https://github.com/eranif/codelite/pulse).
Ranked in these QuestionsQuestion Ranking
Pro Cross platform
Clion works on Windows, Linux and OSX.
Pro Intelligent code completion
CLion has an intelligent autocompletion engine that tries to predict the symbol you are typing based on your previous history and the context in which it's being typed.
Pro Easy to find installed compilers
The search for the installed compilers is quick, and it usually yields useful results on the very first atempt.
Pro Open source and free
CodeLite is licensed under GPL with source code available on GitHub.
Pro Cross platform
Works on Windows, OS-X and Linux.
Pro Modest memory footprint
CodeLite takes up about 50MB when loaded into memory with a workspace opened.
Pro File Explorer-like workspace view
The workspace view, unlike other IDEs, is a reflection of the actual directory structure on the file system (with user filters applied).
Pro A lot of useful plugins
CppCheck, DiffTool, Git, MemCheck (Valgrind support, Linux-only), SVN, and many other plugins extend the IDE functionality greatly!
Con Build Tool Integration is messy/over complicated
I have a Jetbrains annual subscription so I can use this tool for free and I've used the Java IDE for years so I really want to like CLion. But it's just over complex to add 3rd party libraries etc. Netbeans/Eclipse etc are much better integrated with the build tools
Clion is proprietary software which costs $199/1st year for a business license or $89/1st year for an individual license.
Con Bland UI
The UI is fairly boring and has limited customization options.
There is a dark theme available, however it only applies to the editor. The surrounding windows and borders remain light.
You can see a collection of screenshots here.