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CLion vs Code::Blocks: catalog facts
CLion	Code::Blocks
Freemium Free for non-commercial use. Commercial use requires a paid subscription.	Free Free to use, with the project accepting donations.
Windows, macOS, Linux	Windows, Linux
Understands CMake and compilation databases rather than guessing at includes Remote and embedded debugging built in	Dedicated support for C, C++ and Fortran Plugin framework makes it highly configurable
Commercial use requires a paid subscription Indexing large C++ codebases is slow	Long gaps between major releases Focused on C-family languages and Fortran rather than general use
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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