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KDevelop vs CLion: catalog facts
KDevelop	CLion
Free Free and open source.	Freemium Free for non-commercial use. Commercial use requires a paid subscription.
Windows, macOS, Linux	Windows, macOS, Linux
Semantic code completion for C and C++ CMake and QMake project support	Understands CMake and compilation databases rather than guessing at includes Remote and embedded debugging built in
Python and PHP support needs optional plugins Best suited to C, C++ and Qt work	Commercial use requires a paid subscription Indexing large C++ codebases is slow
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.