Open-source alternatives to GitHub Copilot
Looking to replace GitHub Copilot with something free and open-source? These 9 tools are the best open alternatives in 2026 — most are self-hostable, so you keep full control of your data and pay no subscription.
At a glance: how they compare
Click a column to sort — the best one depends on what matters to you.
| Alternative | Stars | Language | License | Last commit | In one line |
|---|---|---|---|---|---|
| opencode | — | — | MIT | — | The open source coding agent. |
| codex | — | — | Apache-2.0 | — | Lightweight coding agent that runs in your terminal |
| open-design | — | — | Apache-2.0 | — | 🎨 The open-source Claude Design alternative. 🖥️ Local-first desktop app. 🖼️ Your coding agent becomes the design engine: prototypes, landing pages, dashboards, slides, images & video — real files, HTML/PDF/PPTX/MP4 export. 🤖 Claude Code / Codex / Cursor / Gemi |
| pi | — | — | MIT | — | AI agent toolkit: unified LLM API, agent loop, TUI, coding agent CLI |
| openinterpreter | — | — | Apache-2.0 | — | A coding agent for open models like Kimi K3 |
| aider | — | — | Apache-2.0 | — | aider is AI pair programming in your terminal |
| tabby | — | — | — | — | Self-hosted AI coding assistant |
| kilocode | — | — | MIT | — | Kilo is the all-in-one agentic engineering platform. Build, ship, and iterate faster with the most popular open source coding agent. |
| qwen-code | — | — | Apache-2.0 | — | An open-source AI coding agent that lives in your terminal. |
Which one should you pick?
opencode
The open source coding agent. Its MIT license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
codex
Lightweight coding agent that runs in your terminal Its Apache-2.0 license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
open-design
🎨 The open-source Claude Design alternative. 🖥️ Local-first desktop app. 🖼️ Your coding agent becomes the design engine: prototypes, landing pages, dashboards, slides, images & video — real files, HTML/PDF/PPTX/MP4 export. 🤖 Claude Code / Codex / Cursor / Gemi Its Apache-2.0 license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
pi
AI agent toolkit: unified LLM API, agent loop, TUI, coding agent CLI Its MIT license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
openinterpreter
A coding agent for open models like Kimi K3 Its Apache-2.0 license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
aider
aider is AI pair programming in your terminal Its Apache-2.0 license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
tabby
Self-hosted AI coding assistant Because it is self-hostable, your data can stay entirely on your own infrastructure.
kilocode
Kilo is the all-in-one agentic engineering platform. Build, ship, and iterate faster with the most popular open source coding agent. Its MIT license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
qwen-code
An open-source AI coding agent that lives in your terminal. Its Apache-2.0 license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.
Switching from GitHub Copilot without the drama
- Export your data from GitHub Copilot first — most tools above can import standard formats.
- Run your top pick in parallel for a week or two before committing; self-hosted options can be tried locally in minutes.
- Migrate one team or one project at a time, keeping the old account read-only until everything checks out.
FAQ
What is the best open-source alternative to GitHub Copilot?
The top open-source alternative is opencode — The open source coding agent. The full ranked list is above.
Are these GitHub Copilot alternatives free?
Yes. Every tool listed is open-source and free to use; most can be self-hosted so you keep full control of your data.
Can I self-host an alternative to GitHub Copilot?
Most of these tools are designed to run on your own server or machine, giving you privacy and no subscription fees.
More open-source alternatives
Browse open-source replacements for dozens of popular tools — design, productivity, dev, analytics and more.
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