JetBrains

IDEs

Current

The following is a non-exhaustive list of integrated development environments (IDEs) distributed by JetBrains.

Former

The JetBrains Marketplace offers 8,860 plugins that extend the functionality of JetBrains IDEs.[47]

ReSharper

ReSharper is a Visual Studio extension for .NET developers, first released in 2004.[48] It is JetBrains' longest-standing commercial product and, according to JetBrains, has accumulated over 2.5 million downloads, making it the most popular extension on the Visual Studio Marketplace.[49] It was also a key revenue source for JetBrains in its early years.[50]

ReSharper provides on-the-fly code quality analysis for C#, VB.NET, XAML, ASP.NET, JavaScript, TypeScript, CSS, HTML, and XML.[51] Its features include code refactoring, code completion, navigation, find usages, and code formatting.[52] The extension offers more than 2,200 on-the-fly code inspections and over 60 refactorings and 450 context actions.[53]

Starting with version 2026.1, ReSharper expanded beyond Visual Studio to support Visual Studio Code and compatible editors such as Cursor, bringing JetBrains' C# tooling to a broader range of development environments.[54] The VS Code extension provides real-time code analysis, refactorings, and navigation for C#, XAML, Razor, and Blazor, and includes a Solution Explorer as well as built-in unit testing support for NUnit, xUnit.net, and MSTest.[55]

ReSharper's development influenced the creation of JetBrains' standalone .NET IDE, Rider; although plans for a dedicated ReSharper IDE were explored and later abandoned after the release of Visual Studio 2005, the work done on ReSharper ultimately formed the foundation for Rider.[56] ReSharper is available as a standalone license or as part of the dotUltimate subscription, which also includes Rider, dotTrace, dotCover, and dotMemory.[57]

Programming languages

Kotlin is an open-source, statically typed programming language that runs on the Java Virtual Machine and also compiles to JavaScript or native code (via LLVM).[58] The name comes from the Kotlin Island, near St. Petersburg.[59] In May 2017, Google announced first-class support for Kotlin on Android, and at Google I/O 2019, Google declared Kotlin its preferred language for Android app development.[60][61]

JetBrains MPS is an open-source language workbench for domain-specific languages.[62]

Ktor is a Kotlin-based programming framework for developing "connected applications", using the same framework on both server (JVM) and client (JavaScript, Android, and iOS).[63]

Kotlin Multiplatform (KMP) is a JetBrains technology that allows developers to share Kotlin code across multiple platforms, including Android, iOS, desktop, web, and server.[64] It reached stable status with the release of Kotlin 1.9.20 in November 2023.[65] The related Compose Multiplatform framework, which enables shared user interfaces, became stable for iOS in 2025.[66]

Team tools

TeamCity is a continuous integration and continuous delivery server developed by JetBrains. It is a server-based web application written in Java. The New York Times reported that TeamCity may have been used by Russian hackers of US governmental and private agencies, in potentially "the biggest breach of United States networks in history".[67]

Upsource is a code review and repository browsing tool supporting Git, GitHub, Mercurial, Perforce and/or Subversion repositories from a central location. JetBrains released a new developer collaboration tool, Space, in 2019.[68][69] It began sunsetting Upsource in 2022, officially ending support for the product in January 2023.[70] In May 2024, a rebranding from Space to SpaceCode is initiated for the platform to focus on Git hosting and code reviews.[71]

YouTrack is a proprietary, commercial web-based bug tracker, issue tracking system, and project management software developed by JetBrains.[72]

Qodana is a code quality analysis tool that uses static code analysis to help with users with code reviews, building quality gates, and the implementation of code quality guidelines.[73] It was publicly launched in July 2023 and can be used with IDEs in JetBrains's ecosystem, has CI/CD pipeline integration, while supporting code analysis in over 60 programming languages.[74]

AI-powered tools

JetBrains AI Assistant is a feature integrated into most JetBrains IDEs. It provides AI-powered code completion, explains code, generates documentation, and suggests refactorings. The assistant uses models from OpenAI and Google, as well as proprietary models developed by JetBrains, to provide its functionality.[75]

In April 2025, JetBrains released Mellum, a 4-billion-parameter large open-source language model created by JetBrains and released under the Apache 2.0 license. It was trained on a dataset of permissively licensed source code and is designed to be a "focal model" specializing in code completion and other coding-related tasks. It serves as one of the models powering the AI Assistant.[76][77][78][79]

Others

Datalore is a web application for data analysis and visualization, which is focused specifically on the machine learning environment in Python.[80] JetBrains Academy[81] is an online platform to learn programming, including such programming languages as Python, Java, and Kotlin. The Academy was introduced by JetBrains in 2019, and reached 200,000 users by July 2020.[82][83] Certifications were added in November 2021 after community feedback prioritized verifiability of the work done on projects.[84] JetBrains has also developed the EduTools plugin for students, which is compatible with IntelliJ IDEA (Ultimate, Community, Educational), Android Studio, CLion, GoLand, PhpStorm, PyCharm (Professional, Community, Educational), WebStorm.[37]

JetBrains Mono

In January 2020, JetBrains released a geometric monospaced font called JetBrains Mono, made the default font for its IDEs, under the Apache License 2.0.[92][93] The font is designed for reading source code by being optimized for reading vertically with support for programming ligatures.[94][95]

JetBrains is also an active sponsor of other open-source projects and foundations. The company is a contributing member of the Scala Center Advisory Board,[96] and a Silver Member of the Rust Foundation.[97]

Junie

Junie is an AI coding agent developed by JetBrains, launched in January 2025 in closed preview.[98] Unlike the AI Assistant, which focuses on code completion and interactive suggestions, Junie is designed to carry out multi-step development tasks more autonomously, such as implementing features, writing tests, and verifying results.[99] In April 2025, JetBrains made Junie generally available and announced a free AI tier bundled with all IDE licenses starting with the 2025.1 versions.[100]

Google Cloud

JetBrains has an active technology partnership with Google Cloud.[106] In 2022, the companies partnered to deliver integration between Google Cloud Workstations and JetBrains remote development, allowing developers to use JetBrains IDEs with Google Cloud's managed development environments.[107] This integration gave Cloud Workstations support for popular JetBrains IDEs such as IntelliJ IDEA, PyCharm, and Rider, allowing developers to take advantage of managed and customizable environments in Google Cloud within their preferred IDE.[108]

In 2024, JetBrains extended its collaboration with Google Cloud to integrate Google's Gemini models into JetBrains AI Assistant, making it the first tool of its kind to combine functionality from OpenAI's GPT-4o, Gemini, and JetBrains' proprietary models.[109] The collaboration leveraged Google Cloud's Vertex AI to expand the pool of large language models (LLMs) available to AI Assistant users, with Gemini Pro 1.5 and Flash 1.5 adding a long context window, advanced reasoning, and high-volume, low-latency capabilities.[110] With JetBrains AI Enterprise, organisations were given the ability to configure which LLM their teams use, while for other users the assistant automatically selects the most suitable model for each task.[111] Later that year, starting from version 2024.3 of JetBrains AI Assistant, users were able to select their preferred LLM directly within the AI chat interface.[112]

The partnership further expanded in 2025, when JetBrains integrated Gemini 3 Pro into both its AI Assistant and its AI coding agent Junie, with JetBrains noting that the new model showed more than a 50% improvement over Gemini 2.5 Pro in solved benchmark tasks.[113] Google Cloud also made Gemini Code Assist available as a plugin for JetBrains IDEs, supporting real-time code completions, full-function generation, and natural-language-to-code conversion within the JetBrains ecosystem.[114]

Other collaborations

JetBrains participates in various strategic collaborations including the Java Community Process Executive Committee, Kotlin Foundation, and supports JUnit 5. The company also partners with Unity for RiderFlow and GitLab to optimize review experiences.[25]

Educational and research projects

Before the Russian invasion of Ukraine started - between 2012 and 2021 - the company ran and supported several educational and research projects in Russia, often in partnership with universities and other organizations, including:

• The Computer Science Club at the St. Petersburg Department of Steklov Mathematical Institute of the Russian Academy of Sciences, which is a joint initiative of JetBrains and the Yandex School of Data Analysis.[116][117]
• The JetBrains Laboratory at Saint Petersburg State University.[117][118]
• The BioLabs Laboratory, a consortium of scientific teams under JetBrains Research.[119]
• A Laboratory of Mobile Robot Algorithms.[120]