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GCC vs LLVM: catalog facts
GCC	LLVM
Free Free software from the GNU Project.	Free Free and open source.
Linux, Command line	Windows, macOS, Linux, Command line
Front ends for many languages Native and cross-compilation targets	Includes the Clang C and C++ compiler Frequent, regular releases
Official releases are source only; binaries come from third parties Building from source is involved	Large toolchain to build from source Documentation is aimed mostly at compiler developers
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: Apache-2.0 WITH LLVM-exception
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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