Theia Platform – Open Framework for Building Custom IDEs and Tools

Not sure whether you need a web or desktop version or both?
With Theia you can develop one IDE and run it in a browser or as a native desktop application from a single source.
Theia is designed in a modular way to allow extenders and adopters to customize and extend every aspect.
This goes way beyond “just adding extensions”, because Eclipse Theia lets you build fully customized or white-labeled products!
Theia is truly vendor-neutral and developed by a diverse community. Unlike other “open source” projects, Theia is actually hosted at an Open-Source Foundation, protecting it against single-vendor decisions. Learn more here. This vendor neutrality also means multiple companies offer professional support.
Theia is built on a modern web technology stack, offering language support via LSP and DAP, hosting VS Code extensions, and providing full terminal access.
While it reuses components from VS Code, such as the Monaco editor, Theia is an independent platform with a modular architecture - NOT a fork of VS Code.
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Eclipse Theia is a framework for building tools and IDEs. You can try it by building your own IDE/tools based on Theia within minutes. Alternatively, you can download and use the Theia IDE, a template tool based on Eclipse Theia or try it online.
Learn more about Eclipse Theia, how to get started with it, how to build your own tool/IDE and about the project's goals. Browse the documentation and resource section. Also, checkout the available introduction video below!
Checkout the available releases including changelogs, migration guides and news and noteworthy articles. Browse the project's sources and consume/download Theia packages from the npm registry. Need help with adoption? Get professional support.
Eclipse Theia is an open source project governed by the Eclipse Foundation. We are happy for any contributions! Please check out the contribution guide, our code of conduct and consider starting with good first issues.
Stefan Dirix, Theia Project Committer and Lead Software Architect at EclipseSource
Jonas Helming, Theia project lead and Principal Software Architect at EclipseSource
Thomas Mäder, Theia project lead and Principal Software Developer at Red Hat
Jonas Helming, Theia project lead and Principal Software Architect at EclipseSource
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