Alternatives

GitHub Copilot Alternatives

Copilot now spans completions and agent mode in your editor, the Copilot CLI, a cloud agent for issues, and a desktop app for managing agent work. People look for an alternative when they would rather run each vendor's own CLI on their own subscriptions, want local worktrees, containers, or SSH hosts instead of GitHub's cloud agent, or want completions from a different editor.

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What to look for in a GitHub Copilot alternative

  • Each vendor's own CLI, on your own subscriptions
  • Local parallel agents with worktree or container isolation
  • Review and merge without leaving the workspace
  • Completions in the editor you already use

Recommended options

Agentastic

Our pick

Native macOS workspace with 55 built-in agent definitions and a git worktree or container per task. Built-in editor, browser, diff viewer, and AI code review.

Cursor

AI editor based on the VS Code codebase, with local and cloud agents, worktrees in its Agents Window, a CLI, and Bugbot for pull-request review.

Claude Code

Anthropic's coding agent for the terminal, IDEs, a desktop app, and the web, with built-in worktree support for parallel sessions.

Codex

OpenAI's open-source coding agent for the terminal, also available in the ChatGPT desktop app. Run it standalone or alongside Claude Code in Agentastic.

How to switch from GitHub Copilot cleanly

You don't have to drop Copilot. Keep it in your editor for completions, and run delegated tasks in Agentastic, where the Copilot CLI is one of the built-in agents next to Claude Code and Codex.

Common questions

Can Agentastic replace Copilot?

Not for completions: Agentastic's editor offers language-server completion, not AI autocomplete. For delegated tasks, yes, and it can run the Copilot CLI itself next to Claude Code and Codex.

Is there a free GitHub Copilot alternative?

Copilot has a free plan of its own, which includes the Copilot CLI. Free alternatives include open-source agents such as OpenCode and Gemini CLI, which you can run in a terminal or in Agentastic.

Does Copilot work with Claude and Codex?

GitHub says you can assign tasks to agents including Copilot, Claude by Anthropic, and OpenAI Codex. Agentastic instead runs each vendor's own CLI, on your subscription, in its own local worktree.