What is CLion used for?

CLion is a cross-platform JetBrains IDE for C and C++ with code analysis, refactoring, debugging, and support for embedded and remote development. It is a good fit for professional C++ application development, embedded firmware projects, and learning and teaching C and C++.

Is CLion open source?

No. CLion is proprietary (closed-source) software. Open-source alternatives to CLion include Visual Studio Code, Neovim and code-server.

What are some alternatives to CLion?

CLion competes with Visual Studio, Xcode and Embarcadero RAD Studio. For open-source options, see Enlisted's ranked list of open-source CLion alternatives.

CLion: features, pricing and alternatives

About CLion

CLion is a commercial IDE from JetBrains built for C and C++ development, and it also handles Rust. It runs on Windows, macOS and Linux, and it is designed so that most of what a native developer needs is available without installing extra tools.

Its language engine is built to understand modern C++, including templates and constexpr code, and drives context-aware completion, on-the-fly analysis, navigation and automated refactorings. It works with common toolchains such as GCC, Clang and MSVC, and build systems including CMake, Makefiles, Bazel and Meson. Debugging, Google Test integration, Docker and WSL support, and embedded and remote development workflows are part of the package.

JetBrains also integrates AI assistance that can use models from several providers or a local model, along with multiple agents. CLion is a proprietary product, and the vendor states it is free for non-commercial use, with commercial licenses sold on its pricing page.

Key features

C and C++ code completion and analysis
Automated refactorings for large codebases
CMake, Bazel, Meson and Makefile support
Integrated debugger and unit test runner
Embedded and remote development workflows
Docker and WSL integration

Good fit for

→Professional C++ application development
→Embedded firmware projects
→Learning and teaching C and C++

Tags: ide; c-plus-plus; c-language; jetbrains; debugger; cmake; embedded; cross-platform

CLion: questions and answers

What is CLion used for?: CLion is a cross-platform JetBrains IDE for C and C++ with code analysis, refactoring, debugging, and support for embedded and remote development. It is a good fit for professional C++ application development, embedded firmware projects, and learning and teaching C and C++.
Is CLion free?: Yes. CLion has a free plan.
Is CLion open source?: No. CLion is proprietary (closed-source) software. Open-source alternatives to CLion include Visual Studio Code, Neovim and code-server.
What are some alternatives to CLion?: CLion competes with Visual Studio, Xcode and Embarcadero RAD Studio. For open-source options, see Enlisted's ranked list of open-source CLion alternatives.