Software / CLion

CLion

CLion is JetBrains’ cross-platform IDE for C and C++ development, with code analysis, build-system support, debugging, testing, and remote development tools.

8.1/10 TechZella Score
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Editorial overview

Aggregated Overview

Official documentation verifies broad C/C++ build, test, analysis, debugging, and remote workflows. Public G2 and Capterra ratings are positive, while visible review excerpts mention occasional slowness and setup complexity.

This profile combines documented product information and independent evidence where available. It is not a hands-on test unless TechZella explicitly identifies one.

Decision guide

CLion Decision Snapshot

A quick way to understand who this product may suit, where its limits matter, and which facts are most relevant before you compare alternatives.

Best suited to

C and C++ developers who want a single desktop IDE for code navigation, refactoring, CMake-oriented builds, debugging, unit testing, and embedded or remote workflows.

Look elsewhere if

Teams requiring BSD desktop support, a stable CLion-specific public plugin API, or an IDE that supplies every compiler and toolchain without configuration should assess the documented limitations first, and should evaluate alternatives such as Microsoft Visual Studio or Visual Studio Code instead.

Platforms

Docker, Linux, macOS, Windows

TechZella assessment

8.1/10

Overview

CLion is a desktop integrated development environment from JetBrains for C and C++ development. It combines code completion, navigation, refactoring, code analysis, build and run configurations, debugging, and test-running tools.

Its CMake integration is central to the workflow, but the IDE also supports Makefile, Meson, compilation database, and Gradle projects. Developers can use local toolchains or configure supported remote and embedded workflows.

Decision context

CLion — What Sets It Apart?

These are the product-specific differences that may matter when deciding whether the software fits your workflow. They are based on documented evidence rather than a universal ranking.

  • CMake integration alongside Makefile, Meson, compilation-database, and Gradle project support.
  • Native debugging and embedded workflows, including microcontroller-related views and debugging options.
  • Supports remote Linux development from Windows, macOS, or Linux clients, plus WSL and Docker-related workflows.
  • The 2026.1 release added Agent Client Protocol support for third-party AI agents in the IDE chat.
6 key claims verifiedOur editorial team checked this profile against vendor documentation, pricing information, product documentation. Supported by 6 documented sources.
Editorial assessment

CLion Pros & Cons

Pros

  • Combines C/C++ code insight, refactoring, build, debugging, and testing workflows.
  • Works with multiple project formats and toolchains beyond CMake.
  • Supports remote Linux, WSL, and documented embedded development workflows.
  • Offers a free non-commercial license and a 30-day commercial trial.

Cons

  • BSD-based desktop operating systems are not supported.
  • Compiler and debugger setup may require external tools and configuration.
  • The CLion plugin API has no CLion-specific stability guarantee.
  • Code With Me is being gradually sunset.
Operational limits

CLion Gotchas & Operational Limits

These are documented constraints or practical friction points that may matter before you adopt the product.

Commercial use requires a paid subscription; the free license is limited to non-commercial use, while a full-featured trial lasts 30 days.

Individuals and organizations should confirm that their intended work qualifies for the free license before relying on it.

Evidence source ↗

CLion does not offer a CLion-specific public API with guaranteed stability.

Plugin developers may need to adapt extensions as IntelliJ Platform APIs change between IDE releases.

Evidence source ↗

Remote development documentation specifies minimum connection requirements and excludes NFS and SMB network filesystems for the documented remote setup.

Teams with constrained networks or network-mounted project storage should verify their infrastructure before standardizing on remote workflows.

Evidence source ↗

JetBrains announced a gradual sunset of Code With Me in the CLion 2026.1 release post.

Teams using that feature for real-time pair programming should plan for a different collaboration workflow.

Evidence source ↗
Plans & pricing

CLion Pricing & Plans

Non-commercial license

$0

Free license for non-commercial development, including learning, self-education, hobby projects, and qualifying open-source contributions.

Check current pricing →

Commercial individual subscription

$10.90/month or $109/year
Monthly or yearly

Paid subscription for commercial development by individuals. Verify regional pricing and renewal terms on JetBrains’ page.

Check current pricing →

Commercial organization subscription

Organizational pricing is presented through a quote option on the official pricing page.

Check current pricing →

Pricing may change. Verify current plans on the vendor's website.

Cost context

Total Cost & Hidden Costs

Additional costs or implementation requirements that are documented in the available evidence.

Commercial subscription

JetBrains lists an individual commercial subscription at $10.90 per month or $109 per year on its pricing material; organizational pricing is presented through a quote option.

Evidence source ↗

Toolchain setup

Users select supported or custom compilers and debuggers. CLion bundles some components, including CMake and a MinGW toolset for Windows setup, but the documentation also describes configuring other toolchains.

Evidence source ↗
Compare options

CLion Competitors & Alternatives

Compare similar products directly, then see which alternatives may make more sense when your requirements differ.

Direct competitors

These products address broadly similar requirements. The descriptions focus on documented reasons a buyer might compare them with CLion.

Capabilities

CLion Features

C/C++ Development

  • Code completion and navigation
  • Code inspections and quick fixes
  • Refactoring and code generation
  • C and C++ language support

Build and Debug

  • CMake, Makefile, Meson, compilation database, and Gradle project support
  • GDB, LLDB, and supported DAP debugging workflows
  • Remote Linux toolchains and debugger configurations

Testing and Integrations

  • Google Test, Boost.Test, Catch, Doctest, and CTest test workflows
  • Git, GitHub, Mercurial, Perforce, and Subversion integrations
  • Plugin Marketplace and IntelliJ Platform plugin development

Embedded and AI

  • Embedded development features including ARM Peripheral View and FreeRTOS thread view
  • Third-party AI agents through Agent Client Protocol in CLion 2026.1
Visual preview

Demo & Screenshots

CLion product screenshotCLion product screenshotCLion product screenshot
Product details

CLion Specifications

Primary languagesC, C++
Desktop operating systemsWindows 10/11, supported macOS and Linux distributions
Additional environmentsWSL 2, Docker-related setups, remote Linux hosts
Build systems and project formatsCMake, Makefile, Meson, compilation database, Gradle
Test frameworksGoogle Test, Boost.Test, Catch, Doctest, CTest
APINo CLion-specific public API with guaranteed stability; plugin development uses IntelliJ Platform Open API.
Free trial30 days
License optionsFree non-commercial license; paid commercial subscription
Linux requirementsSupported distributions include Ubuntu 24.04/26.04 LTS, Fedora 43/44, Debian 13, and Amazon Linux 2023, per current installation documentation.
Remote connection requirementsOpenSSH 7.9p1 or later; documentation lists minimum 20 Mbps client-server bandwidth and maximum 200 ms latency.
Deployment

Deployment & System Footprint

Verified installation, hosting, administration, or environment details that can affect implementation.

Installation or hostingDesktop IDE for Windows, macOS, and supported Linux distributions; remote development can use a local client connected to a Linux host. Source ↗
Remote requirementsRemote development documentation lists OpenSSH 7.9p1 or later, minimum 20 Mbps client-server bandwidth, and maximum 200 ms latency. Source ↗
Exit planning

Migration & Lock-In

Documented portability, standards, export, or switching considerations. No switching-cost score is shown unless the evidence supports one.

Project formats

Can open CMake, Makefile, Meson, compilation database, and Gradle projects. CLion 2026.1 also added support for opening custom and VS Code projects using c_cpp_properties.json.

Evidence source ↗

Plugin portability

Plugins use IntelliJ Platform APIs; JetBrains warns that platform API changes can affect plugin functionality between releases.

Evidence source ↗
Our evidence-based assessment

TechZella Score

A proprietary editorial score based on product capabilities, usability, value, performance, support and user sentiment evidence.

8.1/10Moderate confidence
Features8.8
Ease of Use7.8
Value for Money7.6
Performance7.5
Support7.8
User Sentiment8.4

Official documentation verifies broad C/C++ build, test, analysis, debugging, and remote workflows. Public G2 and Capterra ratings are positive, while visible review excerpts mention occasional slowness and setup complexity.

Methodology v1.0. The assessment weighs feature coverage (25%), ease of use (15%), value for money (20%), performance (15%), support (10%) and user sentiment (15%), using researched product evidence and verified review evidence where available. It is a TechZella editorial assessment, not a direct user-review average.

Editorial transparency

Our Review Methodology

Key claims are linked to the sources used to verify them. This evidence record is separate from third-party user ratings.

TechZella evaluates software using documented product capabilities, pricing information, usability and value considerations, independent user evidence where available, and competitive context. The assessment is an editorial review, not a hands-on test unless one is explicitly identified. Our editorial assessment is based on 6 documented sources.

What TechZella adds
  • CMake integration alongside Makefile, Meson, compilation-database, and Gradle project support.
  • Native debugging and embedded workflows, including microcontroller-related views and debugging options.
  • Supports remote Linux development from Windows, macOS, or Linux clients, plus WSL and Docker-related workflows.
  • The 2026.1 release added Agent Client Protocol support for third-party AI agents in the IDE chat.
Important limitations
  • The operating-system support list excludes BSD-based systems.
  • CLion does not provide its own public API with guaranteed stability; its plugin development relies on the IntelliJ Platform Open API, which can change between releases.
  • Remote development has documented constraints, including SSH requirements, bandwidth and latency thresholds, and unsupported NFS/SMB network filesystems.
  • CLion’s Code With Me collaboration feature is being gradually sunset, according to JetBrains’ 2026.1 release announcement.
Evidence-backed claims
CLion runs on Windows, macOS, and Linux.

JetBrains documentation identifies the three supported desktop operating systems and lists system requirements.

View source ↗Verified 2026-10-01
CLion supports CMake, Makefile, Meson, compilation database, and Gradle project formats.

The official quick-start guide describes the supported build systems and project formats.

View source ↗Verified 2026-10-01
CLion has a built-in test runner for several C/C++ test frameworks.

JetBrains documentation lists Google Test, Boost.Test, Catch, Doctest, and CTest support.

View source ↗Verified 2026-10-01
The free CLion license is for non-commercial development, and commercial users can start a 30-day trial.

JetBrains’ pricing page distinguishes non-commercial and commercial use, and its registration documentation describes the 30-day trial.

View source ↗Verified 2026-10-01
CLion’s plugin development uses IntelliJ Platform APIs rather than a CLion-specific stable public API.

JetBrains states that CLion has no product-specific public API with guaranteed stability and directs plugin authors to the Platform Open API.

View source ↗Verified 2026-10-01
CLion 2026.1 added support for third-party AI agents through the Agent Client Protocol.

The release announcement names GitHub Copilot, Cursor, Codex, and other ACP-compatible agents.

View source ↗Verified 2026-10-01
Independent review sources

CLion Ratings & Reviews

Ratings are published by the respective review platforms and may change over time.

Community feedback

Reviews

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FAQ

Is CLion free?

JetBrains provides a free license for non-commercial development, along with eligible education access. Commercial development requires a paid subscription. A 30-day trial is available.

Which operating systems does CLion support?

JetBrains lists Windows, macOS, and supported Linux distributions. BSD-based operating systems are not supported.

Does CLion include a compiler?

CLion can work with multiple compiler toolchains. Its documentation describes bundled components such as CMake and a MinGW toolset for Windows, while also explaining how to configure GCC, Clang, Visual Studio, IAR, and custom compilers.

Does CLion provide an API?

JetBrains documents plugin development through the IntelliJ Platform Open API. It says CLion does not provide its own public API with guaranteed stability.

Can CLion be used for embedded development?

Yes. JetBrains documents microcontroller development, on-chip debugging options, ARM Peripheral View, FreeRTOS thread view, and STM32CubeMX integration.