Theia IDE is a modern, open-source development environment that runs on desktop and in the cloud. Not a VS Code fork, Theia supports the Language Server Protocol (LSP), is fully compatible with VS Code extensions, and features advanced AI support — all while keeping full control of your data. Explore the open and flexible alternative to VS Code today!

GitHub

Theia IDE is compatible with VS Code APIs and can install and use VS Code extensions. Has additional APIs for customizations not available in VS Code.

Have you tried Theia IDE? Any assessments or experiences to share?