Best Codeium Alternatives in 2026
Codeium is one of many AI coding extensions, and it isn't the right fit for everyone. Whether you're after a lower price, a different platform, or a tool that does one thing better, here are the 7 closest alternatives — each compared on what actually matters.
Still deciding? Read about Codeium itself →
GitHub's AI coding assistant — inline completions and AI chat built into VS Code, Visual Studio, and other editors.
Privacy-first AI code assistant with completions and chat grounded in your codebase, offering local, VPC, on-premises, and air-gapped deployment so your code never leaves your control.
A drop-in authentication service that adds user login, signup, and session management to any web app with minimal setup.
Google's free AI coding assistant for VS Code and JetBrains — inline completions, in-editor chat, and code review powered by Gemini models.
Open-source VS Code extension forked from Cline that added boomerang task orchestration, custom AI modes, and a model-agnostic BYOK setup — shut down May 15, 2026.
Open-source VS Code extension that acts as an autonomous AI coding agent — reads files, writes code, runs terminal commands, and uses your own API key.
Free, open-source AI coding assistant for VS Code and JetBrains that supports any LLM via BYOK — autocomplete, chat, and inline edits.