One of the most popular alternatives to GitHub Copilot is opencode, which is free and open source. Other popular alternatives are Claude Code, Google Antigravity, Cursor and Void. You're spoiled for choice with AI Coding Assistants like GitHub Copilot: we list more than 100 alternatives for Mac, Windows, Linux, the web and self-hosting.
CodeSage is an AI Chatbot that reads code directly from github to get you the most accurate answers. It solves the problem of incorrect code given by chatbots like ChatGPT because they do not have info on the specific version of the library you're using.
GitLab Duo is a software suite that leverages Artificial Intelligence (AI) to optimize various aspects of your workflows. This includes enhancing testing procedures, bolstering security measures, and improving documentation processes.
United States
Crush is an open-source, terminal-based AI coding agent built in Go by Charm (charmbracelet), designed to bring agentic coding directly into your shell with a polished TUI experience.
Zoo Code is a community-maintained, open-source AI coding assistant that continues Roo Code development after the original team stepped away in April 2026 to focus on Roomote.
Sourcery is an AI-powered tool that enhances software development productivity. It supports multiple programming languages and provides intelligent code suggestions, automated refactorings, code completion, and code generation.
United Kingdom
A software development agents that work everywhere you do. From IDE to CI/CD - delegate complete tasks like refactors, incident response, and migrations to Droids.
United States
CodiumAI’s first tool is an IDE extension that interacts with the developer to generate meaningful tests and code explanations for busy devs.
Israel
The copilot-complete function demonstrates that ~100 lines of LISP is all it takes for Emacs to do that thing GitHub Copilot and VSCode are famous for doing except superior w.r.t. both quality and freedom
Free, local-first AI coding IDE with full chat, code mode, and an autonomous coding agent that runs on your machine with any LLM (BYOLLM). No subscription.
United States
Open source tool centered on AI-driven full stack app development, Nut generates bug analysis via Replay.io recordings and runtime behavior capturing, offering AI developers explanations for effective resolutions. Early adopters enjoy free access for feedback contributions.
defract is a local-first desktop app that orchestrates parallel Claude Code agents through a full development lifecycle — story, design, architecture, review, ship.
Portugal
EU
Ami is a native desktop app that lets you run coding agents locally, chat with your codebase in plain English, and see real-time edits tracked for confident commits.
United States
