Free alternatives to GitHub Copilot
6 free programs that can replace GitHub Copilot, each pairing checked by Radar's AI reviewer or by Radar.
GitHub Copilot is an AI coding assistant that suggests code, answers questions and helps explain or fix programs, usually from inside your code editor. Developers working alone and in company teams use it. It is a subscription service that runs in the cloud, so parts of your code are sent to a remote service to produce suggestions.
What to check before you switch:
- Which editors you use every day, and whether the replacement works there or runs in the terminal instead. Codex CLI, for example, is used from the command line.
- Which AI model does the work, and whether you must connect your own access to a model, which may carry its own cost.
- Where your code goes when you use it, and what your employer or client allows.
- How good the suggestions are in your programming languages. Test on a real task before committing.
- Whether you depend on features tied to GitHub, such as pull request summaries, or on team administration.
The list below shows the open-source options for this need.
| Program | Ease | You need | Risk signals | Stars | Downloads this week |
|---|---|---|---|---|---|
| opencodeAn AI assistant for programmers that reads and edits the code in your projects, in a terminal or a desktop app. | Ease Binstaller plus one simple step · Windows | Nothing extra | Few signals | 223,602+2,045 in 6 days | 2,857,014 |
| Claude CodeA terminal program where you ask Claude for a change and it reads your project, edits files and runs commands. | Ease Binstaller plus one simple step · Windows | Nothing extra | Attention · 4 | 154,079+601 in 5 days | 114,529 |
| Codex CLIAn AI helper from OpenAI that reads, writes and runs code for you from a terminal window on your own computer. | Ease Binstaller plus one simple step · Windows | Nothing extra | Attention · 3 | 132,500+1,470 in 5 days | 1,928,744 |
| PiA terminal coding assistant: an AI agent that reads and changes files in your project and runs commands for you. | Ease Binstaller plus one simple step · Windows | Node.js | Attention · 2 | 119,188+1,153 in 5 days | 87,246 |
| StrataRuns a big AI model on your own computer and offers it to chat and coding tools at a local address. | Ease Binstaller plus one simple step · Windows | Graphics card | Attention · 4 | 37,090+4,250 in 6 days | 857,538 |
| ZCodeZ.ai's AI coding assistant: a desktop app, web page and terminal tool where an AI agent writes and edits code in your projects. | Ease Binstaller plus one simple step · Windows | Nothing extra | Attention · 1 | 8,401+126 in 5 days | 824 |
Frequently asked questions
Which free alternative to GitHub Copilot is the easiest to install?
opencode has the highest ease rating among the 6 options: B (installer plus one simple step · Windows).
Is there a free alternative to GitHub Copilot for Windows, Mac and Linux?
Windows: opencode, Claude Code, Codex CLI, Pi, Strata, ZCode. macOS: opencode, Claude Code, Codex CLI, Pi, Strata, ZCode. Linux: opencode, Claude Code, Codex CLI, Pi, Strata.
Are the alternatives to GitHub Copilot really free?
1 of the 6 is completely free; 5 depend on a paid service or key for some features.
How can I tell whether an alternative is trustworthy?
Each card shows the risk signals found, with the evidence. 1 of the 6 has no signal rated attention or high. See also the guide How to find a GitHub project's official repository and avoid fake copies.