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Eclipse IDE vs Code::Blocks: catalog facts
Eclipse IDE	Code::Blocks
Free The open-source application is available without a license fee.	Free Free to use, with the project accepting donations.
Windows, macOS, Linux	Windows, Linux
Huge plugin marketplace covering languages and domains other IDEs ignore Entirely open source and free for commercial use	Dedicated support for C, C++ and Fortran Plugin framework makes it highly configurable
The workspace and perspective model feels dated and confuses newcomers Plugin quality varies widely and conflicts are common	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-2.0	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.