Theia IDE
AI codingTheia IDE is an AI-native, open-source desktop and cloud development environment, governed by a vendor-neutral community. It allows users to bring their own API key or subscription and connect to any large language model, including cloud, self-hosted, or fully locally deployed models, with no vendor lock-in, and it does not perform telemetry on users' code or prompts. Theia IDE is not a fork of VS Code, but it is fully compatible with VS Code extensions and can access more than 3,000 extensions on Open VSX. It is built on Theia AI, giving users transparency and control over AI interactions, allowing customization of prompts and creation of custom agents to automate workflows, while maintaining full ownership of data. The IDE provides world-class code editing support through the Language Server Protocol (LSP), covering Python, Java, JavaScript, C++, and many other languages. Its interface is flexible, supporting theme customization, dynamic toolbars, detachable views, and efficient tab management. Theia IDE is built on the highly modular Theia platform, supports integration of custom extensions and creation of fully customized tools, and is an open-source alternative to VS Code and closed AI coding assistants such as GitHub Copilot and Cursor.