GitHub Copilot
GitHub Copilot is an AI “pair‑programmer” tool from GitHub (in collaboration with OpenAI/Microsoft) that helps developers write code more efficiently by offering context‑aware code completions, suggestions, chat‑based assistance, and support for many popular languages and IDEs. It plugs directly into tools like Visual Studio Code, JetBrains, Neovim, and others, letting you get help while coding, whether that means autocompleting whole lines or blocks of code, explaining what existing code does, or helping with debugging.
More recently, GitHub has added features like “agent mode”, where Copilot can act more autonomously: analyzing your repository, planning changes, running tests, and preparing pull requests for your review. There are free and paid plans; the paid tiers unlock more advanced models, higher usage limits, team/enterprise features, and deeper integration into workflows.