Best Free Coding Agents
Free AI coding agents go beyond autocomplete: they read a repo, plan a change, edit multiple files, run tests, and open a pull request. Open-source options run locally against your own API keys, which keeps private code on your machine.
Free coding agents compared
| Agent | Pricing | Best for | Deployment | Free tier | Link |
|---|---|---|---|---|---|
| Cline | Open Source | VS Code users who want an approval-gated autonomous agent inside their editor. | Desktop, API | The extension is free; you pay only for the model API you connect. | Visit → |
| OpenHands | Open Source | Developers who want an autonomous coding agent they can run locally against private repositories. | Self-hosted, Cloud, API | Self-hosting is free; you pay only for the LLM API calls. OpenHands Cloud offers trial credits. | Visit → |
| Aider | Open Source | Terminal-first developers who want precise, git-aware AI edits with full cost control. | Self-hosted, API | The tool is free; you pay only for the model API you connect. | Visit → |
| Agent Zero | Open Source | Power users who want a fully transparent, hackable autonomous agent they run locally. | Self-hosted | Completely free and open-source; you pay only for model API usage. | Visit → |
How to choose
Decide between cloud convenience and self-hosted privacy. For private codebases, an open-source agent you run locally is safest. Check model flexibility (can you point it at a cheaper model?) and how well it handles multi-file edits and test loops.
All free coding agents
Cline
Best for: VS Code users who want an approval-gated autonomous agent inside their editor.
OpenHands
Best for: Developers who want an autonomous coding agent they can run locally against private repositories.
Aider
Best for: Terminal-first developers who want precise, git-aware AI edits with full cost control.
Agent Zero
Best for: Power users who want a fully transparent, hackable autonomous agent they run locally.
Coding Agents FAQ
Are free coding agents safe for private code?
Self-hosted open-source agents that run locally with your own API keys never send your full codebase to a third party — the safest option for proprietary work.
Do I still need to review the code?
Always. Treat agent output like a junior engineer's pull request: read the diff, run the tests, and merge deliberately.