We may earn a commission if you buy through links on this page. It never changes a score or a ranking. How we make money
It's a split decision.
CLion is the direct fit for C and C++ work; IntelliJ IDEA is built for Java and Kotlin. Both are JetBrains IDEs with code-aware navigation and suggestions, plus tools to run, debug, and test applications. Their free-use terms differ: CLion’s free plan is for non-commercial development, while IntelliJ IDEA’s Free Tier permits commercial and non-commercial use. For paid individual licenses, IntelliJ IDEA costs more at the listed first-year annual rate.
01Side by side
| CLion | IntelliJ IDEA | |
|---|---|---|
| Pricing model | Individual and organization commercial plans | Individual and organization Ultimate plans |
| Free tier | Free for non-commercial development | Free for commercial and non-commercial use |
| Licence and use terms | Non-commercial tier requires anonymous data collection | Free Tier includes commercial use |
| Integrations | Languages and frameworks supported; no names listed | Kotlin ecosystem includes tools, libraries, and integrations |
| Platforms | Web | Web |
| Limits and scaling | Organization concurrency capped at purchased subscriptions | Commercial organization licenses are named-user |
| API and SDKs | C and C++ IDE | Java and Kotlin IDE |
| Deployment model | IDE with built-in run, debug, and test tools | IDE with built-in run, debug, and test tools |
CLion Choose CLion if
- Choose CLion if your main codebase is C or C++.
- Choose CLion if you need a non-commercial free tier.
- Choose CLion if organization seats must be transferable within the legal entity.
IntelliJ IDEA Choose IntelliJ IDEA if
- Choose IntelliJ IDEA if your main codebase is Java or Kotlin.
- Choose IntelliJ IDEA if you need free commercial use.
- Choose IntelliJ IDEA if you want a free tier with AI Free credits.
02Pricing at real usage
CLion’s Non-Commercial plan costs $0 for non-commercial development and requires anonymous data collection. Its individual commercial plan is $109 for the first year when billed annually ($9.08 per month equivalent), then $87 and $65 in later years; monthly billing is $10.90. Organization pricing is $21.58 per user per month, billed annually. Seats are transferable within the legal entity, but concurrent users are capped at purchased subscriptions.
IntelliJ IDEA’s Free Tier allows commercial and non-commercial use; seat and usage limits are not published. Ultimate for individuals is $199 for the first year billed annually ($16.58 per month equivalent), then $159 and $119; monthly billing is $19.90. Organization pricing is $59.92 per user per month annually, or $71.90 monthly, for named-user licenses. JetBrains AI Pro is a separate cost for CLion commercial users; the pricing page lists $10 monthly for individuals and $200 per user yearly for organizations.
03API, SDKs and integration
These are IDEs, not hosted APIs: CLion is for C and C++, and IntelliJ IDEA is for Java and Kotlin. JetBrains says its IDEs use code knowledge for navigation and contextual suggestions, and include tools to run, debug, and test applications without leaving the IDE. Its homepage describes broad language and framework support without naming CLion-specific integrations.
For IntelliJ IDEA, JetBrains also describes a Kotlin ecosystem of tools, libraries, and integrations, but does not name IntelliJ IDEA-specific integrations there. The homepage presents the IDEs as ready to use with supported languages and frameworks, without plugin hassle. The vendor doesn't publish product-specific API, SDK, CLI, or documentation details on the homepage. Treat that as a limit on comparing extensibility from the stated product information, not as evidence that either IDE has no APIs, SDKs, or command-line tools.
04Open source, self-hosting and lock-in
A free-use plan is not the same as an open-source licence. CLion’s free plan is limited to non-commercial development and requires anonymous data collection; IntelliJ IDEA’s Free Tier permits commercial and non-commercial use. The vendor doesn't publish source-code licence, self-hosting, or project-data export terms for either product.
Both products are IDEs with built-in run, debug, and test tools, rather than hosted services described as customer-managed deployments. Their primary distinction is language fit: C and C++ for CLion, Java and Kotlin for IntelliJ IDEA. That makes the choice consequential for teams standardizing on language-specific IDE workflows, but the published terms do not establish how project data or settings move between products. For organization licensing, CLion seats are transferable within a legal entity and concurrency is capped at purchased subscriptions; IntelliJ IDEA uses named commercial licenses.
Questions people ask
Which JetBrains IDE should I use for C++?
JetBrains identifies CLion as its IDE for C and C++ developers. It includes code navigation and contextual suggestions, along with built-in tools to run, debug, and test applications. IntelliJ IDEA is identified as an IDE for Java and Kotlin, so CLion is the language-aligned choice for C++.
Is IntelliJ IDEA better than CLion?
Neither is a general replacement for the other based on JetBrains’ stated language focus. CLion targets C and C++; IntelliJ IDEA targets Java and Kotlin. Both provide code-aware navigation and suggestions, plus built-in run, debug, and test tools. Choose based on the languages your codebase uses.
Can I use IntelliJ IDEA for free commercially?
Yes. The pricing information lists IntelliJ IDEA’s Free Tier as free for commercial and non-commercial use. It also says seat and usage limits are not published. IntelliJ IDEA Ultimate is the paid option for individual and organization licensing, with a 30-day free trial.
Does CLion have a free plan?
Yes. CLion Non-Commercial costs $0 for learning, hobbies, and non-commercial development. The plan requires anonymous data collection. For commercial work, JetBrains lists separate individual and organization plans, plus a 30-day free trial for the commercial options.