IDE Extension

Codeium (Now Windsurf)

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Free AI code completion - Note: Rebranded to Windsurf in April 2025

**Note: Codeium has been rebranded to Windsurf (April 2025) and was subsequently acquired by Cognition AI (July 2025). See our Windsurf listing for the latest information.** Codeium was a free AI-powered code completion tool that offered unlimited completions for individual developers. Supporting 70+ programming languages and 40+ IDEs, it provided fast, accurate AI suggestions powered by in-house models. The product has evolved into Windsurf, which includes the Cascade agentic chat feature and support for frontier models like Claude Opus 4.5, Gemini 3 Pro, and GPT-5.1.

GitHub Copilot

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Industry-leading AI code completion with 100M+ accepted suggestions daily

GitHub Copilot is the industry's most widely adopted AI coding assistant, developed by GitHub and Microsoft. With over 100 million suggestions accepted daily, Copilot provides intelligent code completion, chat-based assistance, and multi-model support including GPT-4.1, Claude 3.5 Sonnet, and Gemini 2.5 Pro. It integrates seamlessly with VS Code, Visual Studio, JetBrains IDEs, and Neovim, offering developers context-aware suggestions that learn from billions of lines of code. Copilot now offers a generous free tier with 2,000 completions per month, making it accessible to all developers.