Theia

Streamlines coding with a customizable, open-source IDE for cloud and desktop. Theia IDE is an AI-native, modern, open-source development environment that runs on desktop and in the cloud. Not a VS Code fork, Theia offers transparent AI assistance with full control over your data, supports the Language Server Protocol (LSP), and is fully compatible with VS Code extensions. Theia IDE is an open-source IDE for cloud and desktop, supporting multiple languages and extensions. It’s free with optional professional support available. It offers similar features but emphasizes customization and vendor neutrality. Via Theia.cloud, but sessions are limited to 30 minutes. It supports Python, Java, JavaScript, C++, and more via LSP. Theia AI (alpha) offers customizable code assistance.