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Eclipse IDE for C/C++ Developers vs Code::Blocks: catalog facts
Eclipse IDE for C/C++ Developers	Code::Blocks
Free Free and open source under the Eclipse Public License.	Free Free to use, with the project accepting donations.
Windows	Windows, Linux
C and C++ tooling bundled in one package Open source with long-running foundation governance	Dedicated support for C, C++ and Fortran Plugin framework makes it highly configurable
Heavier than a plain code editor The Eclipse workspace model takes some getting used to	Long gaps between major releases Focused on C-family languages and Fortran rather than general use
Downloadable app	Downloadable app
Open source	Open source
License: EPL-1.0	License not stated
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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