Codeium Overview
Codeium is an AI-powered coding assistant for Windows and macOS that provides AI code completion, generation, and chat across many editors and IDEs through plugins. As you type, it suggests completions — from single lines to whole functions — based on context, and you can chat with it to explain code, write new code, or refactor, with support for dozens of programming languages. It is notable for offering a capable free tier for individual developers. It integrates into popular editors like VS Code and JetBrains IDEs rather than being a standalone editor (the same company also makes the Windsurf editor). Because it relies on AI models, it needs connectivity for suggestions. The full offline installer/extension installs without an internet connection, though AI features require it. This page links to the official Codeium download.