IntelliJ IDEA vs. Java vs. JetBrains Fleet vs. WebStorm Comparison Chart

IntelliJ IDEA is a professional-grade integrated development environment (IDE) primarily designed for Java and Kotlin development. It helps developers write code faster by automating routine tasks and providing smart coding assistance. The IDE supports the full software development lifecycle, from design and coding to testing and deployment. IntelliJ IDEA stays up to date with the latest language features, such as full support for Java 24 and Kotlin K2 mode. It offers a smooth and enjoyable workflow that helps developers stay focused and productive. The platform also emphasizes data privacy and security, complying with industry standards like SOC 2.

Built from scratch, based on 20 years of experience developing IDEs. JetBrains Fleet uses the IntelliJ code-processing engine, with a distributed IDE architecture and a reimagined UI. We built Fleet to be a fast and lightweight text editor for when you need to quickly browse and edit your code. It starts up in an instant so you can begin working immediately, and it can easily transform into an IDE, with the IntelliJ code-processing engine running separately from the editor itself. Fleet inherits the things that developers love the most from IntelliJ-based IDEs – project and context aware code completion, navigation to definitions and usages, on-the-fly code quality checks, and quick-fixes. Fleet’s architecture is designed to support a range of configurations and workflows. You can simply run Fleet just on your machine, or move some of the processes elsewhere – for example by locating the code processing in the cloud.