Contributing to the IntelliJ Platform
Please make sure to read the Code of Conduct.
Participate in the Community
Participate in Newsgroups and Forums
There are several community forums and newsgroups you can join to discuss the IntelliJ Platform. The forums are an excellent source for users and contributors interested in having technical discussions, answering questions, or resolving potential issues for newcomers.
Link to IntelliJ Platform Homepage
The success of any open-source project depends on the number of people who use the product and contribute back to the project. By linking to https://www.jetbrains.com/opensource/idea, you can increase the chances of a new user or contributor finding out about the project and joining the community.
If you're as excited about IntelliJ IDEA Community Edition as we are, you can show it by linking to us. Project logos and other assets are also available.
Promote IntelliJ Platform and IntelliJ IDEA Community Edition
Help promote the platform and IDE by using your blog, Twitter, Facebook, or submitting an article to your favorite local magazine. If you are a member of a different open-source community, why not mention IntelliJ IDEA on their discussion forums or at conferences? If you love IntelliJ IDEA, don't hold back - speak up! The more developers use IntelliJ IDEA, the more bugs will be caught, the more plugins will be written, the more visible the project, and the more benefits the community will get!
Help Others Learn
We're always looking for new articles about IntelliJ IDEA features as well as documentation for the IntelliJ Platform. You can write tutorials, how-tos, sample applications, or share your experience with the IntelliJ Platform. You can publish your documentation on a website or blog, or submit a pull request to the SDK Docs.
Screencasts have recently become very popular as a way to show other developers how to use the tool effectively. You can record a screencast about a particular feature or use case you discovered and would like to share it with the community.
File a Bug Report
Bug reports take little time to file and are very helpful to developers. This is one of the easiest contributions you can make. When you discover a problem with the IDE or the platform, please report it. Make sure you provide information about your environment (OS, JDK version), steps to reproduce the issue, as well as a written description of the problem. You can file a bug in our YouTrack issue tracker. Before submitting an issue, please search for already submitted ones describing the same problem - and if you find one, feel free to vote for it.
Help Triage Existing Bug Reports
Over the years, users have submitted thousands of issues to the IntelliJ issue tracker. Many of the unresolved issues are no longer applicable to the latest version of IntelliJ IDEA, are duplicates, or require additional information to be resolved. Leaving comments notifying about the status of such issues helps the team keep the issue tracker clean and useful for everyone.
Write a Plugin
One of the best ways to contribute a larger piece of code, adding extra functionality to IntelliJ IDEA or any of the other IntelliJ Platform-based IDEs, is by writing a plugin. You can submit a plugin to the JetBrains Marketplace, making it available for all users. When writing a plugin, you have control over the code and don't need to sign the contribution agreement.
Submit a Patch
If you would like to improve the code in the IntelliJ Platform or the core functionality of IntelliJ IDEA, you can submit a pull request to the IntelliJ IDEA Community Edition repository on GitHub. When preparing the change, please make sure to follow the IntelliJ Platform Coding Guidelines. A developer will review your contribution and, if it meets the quality criteria and fits well with the rest of the code, you'll be notified about the acceptance of the patch.
Alternatively, you can attach a patch to the ticket in the YouTrack bug database. You can either file a new issue with the patch attached or attach a patch to an issue submitted by another user. In this case, you will also need to sign the JetBrains Contributor License Agreement (CLA) to complete your contribution.
Become a Committer
Developers with a long history of submitting high-quality patches can gain direct commit rights.