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Software · Development

CLion

CLion is a code editor, available on Windows, macOS and Linux: code completion, debugging and Markdown support.

  • Limited free plan
  • Windows, macOS and Linux

Overview

CLion is a code editor, available on Windows, macOS and Linux.

Features described in its Flathub listing and on its official website: code completion, debugging and Markdown support.

File formats mentioned: XML and HTML.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “A cross-platform IDE for C and C++” — Flathub, 10 November 2026
  • “Knowing your code through and through, it can boost your productivity with smart and relevant code completion, instant navigation and reliable refactorings.” — Flathub, 10 November 2026
  • “CLion is more than just an editor as it offers a powerful debugger and dynamic analysis tools to investigate and solve problems with ease, built-in Google Test, Boost.Test and Catch for unit testing, many popular VCS…” — Flathub, 10 November 2026
  • “(like JavaScript, XML, HTML, Markdown and others), and this also includes support for all the other languages that are available through bundled and repository plugins.” — Flathub, 10 November 2026

At a glance

CLion is free for private or non-commercial use; professional or company use requires a paid licence.

It is distributed under a proprietary licence: free to use under its terms, which may change; that licence is not an open source licence.

Plans and conditions

  • Free plan: basic features are free; others are reserved for paid plans.
  • Paid subscriptions offered by the publisher.
  • Non-commercial use only, under the publisher’s terms.

Strengths

  • No credit card asked

Weaknesses

  • Limited free plan
  • Closed source

About

**NOTE: Due to limitations imposed by the Flatpak sandbox, certain use-cases or features will not work.** Trust CLion to take care of the routine while you focus on the important things. Knowing your code through and through, it can boost your productivity with smart and relevant code completion, instant navigation and reliable refactorings. CLion is more than just an editor as it offers a powerful debugger and dynamic analysis tools to investigate and solve problems with ease, built-in Google Test, Boost.Test and Catch for unit testing, many popular VCS supported out of the box and more. CLion is designed for native cross-platform development in C and C++, as well as Kotlin/Native, Rust and Swift. It also provides essential support for CMake language, Python, popular web technologies (like JavaScript, XML, HTML, Markdown and others), and this also includes support for all the other languages that are available through bundled and repository plugins. CLion is available for a free 30-day evaluation. Monthly and yearly subscription options are available for companies and individual users.

Description from Flathub — AppStream (Flathub)

Sources and checks

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