CLion
The IDE for professional C and C++ development
Work with any OS, toolchain, and agent.
The choice is yours.
One place to run agents and verify their work,
with jetbrains air
Run multiple agents at once without re-explaining state or codebase context. Debugging, testing, and profiling are always one click away, and code comments go straight back to the agent for it to act on.
Deterministic tools for you and your agents
C and C++ intelligence that actually understands the language
Your agents, your models, your subscriptions
An integrated experience for every level of your stack
CLion is built for the full range of C and C++ development with the compilers and build system you already use, on Windows, Linux, and macOS – including remote development and unit testing as part of the core workflow. Whether you're working on embedded systems, firmware, or custom build targets, cross-compilation, on-chip debugging, and hardware-aware tooling are native capabilities, not add-ons.
Covers all your C and C++ needs
Whether you're shipping production code or writing firmware for custom hardware, CLion supports you every step of the way.
C/C++ developers
Ship with confidence, delegate tasks to agents, and verify the result on your stack and any OS.
Embedded professionals
Develop for your target hardware, debug on the device, and move between chip vendors, compilers, and AI agents without changing tools.
Trusted by developers and teams at the companies powering the world
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What developers say
90%
of managers are satisfied or very satisfied with CLion*
88%
of managers believe that CLion increases teams’ productivity*
74%
claim it took less than two weeks to adopt CLion*
78%
of developers say their productivity has increased with CLion*
* Based on the in-IDE survey conducted in Q2 2025
I prefer CLion because it’s simple, and everything works smoothly. It has the best Git client I’ve ever used, with excellent merge and change comparison functionality. Running tests from CLion is easy. I’m also happy with the ClangFormat integration.
CLion takes a lot of the toil out of C++, allowing me to concentrate on the interesting part: problem solving.
CLion has been indispensable for me when refactoring large codebases. The refactoring tools and the real-time feedback in the IDE about which lines still need to be updated are excellent time savers. Each release gets better and more responsive than the last!
CLion is fantastic, finally the C++ high quality cross-platform IDE with CMake as first class build system we were waiting for.
CLion’s powerful refactoring and code model that understands dependencies between items have already changed my software design process. One can dig out quite a bunch of bugs even before running the application.
Both of these tools (CLion and Rider) help our team on a daily basis, allowing developers to perform their tasks quickly and efficiently, all the while seamlessly integrating with numerous parts of our pipeline.
FAQ
CLion’s Quick start guide shows you how to create and run your first project and introduces the product’s core capabilities. If you are new to CLion, there is a set of interactive courses that can help you get familiar with the essential functionalities.
Moving to CLion doesn't mean rebuilding your setup. Open your existing CMake project, Makefile, or compilation database, and CLion picks up your toolchain. Coming from VS Code, CLion reads the settings in c_cpp_properties.json (and applies any changes you make to it), and you can set up code insight for custom project formats and standalone files, too. Keep your OS, your compiler, and your shortcuts with a familiar keymap.If you have a paid license for a product that competes with CLion, we will give you a 25% discount on a standard commercial or personal subscription.Follow our Quick start guide for step-by-step setup instructions.
If you have any ideas on how to improve CLion, or if you’d like to request a specific feature, feel free to share it in our issue tracker. You can also follow us on our community forum to receive support, share your feedback, and stay in touch with the CLion community.
Try CLion now
Free 30-day trial
Enterprise-grade security and governance
SOC 2 Type II
GDPR