Osaurus
Developer Tools
Osaurus
Own your AI: agents that run 100% locally on your Mac
What it is
Osaurus is a free, open-source macOS app that runs AI agents entirely on your Mac, with persistent memory, autonomous execution, and no data sent to a server unless you choose a cloud provider yourself. It's built natively in Swift for Apple Silicon, MIT licensed, and has crossed 5,000+ GitHub stars since launch, making it one of the more credible local-first alternatives to cloud AI agent platforms.
- Price
- Free
- free tier available
- Free tier
- Yes
- no card required
- Rating
- ★ null
- 0 reviews
- Platforms
- 2
- macOS · API
What you get free vs paid
Verdict
Pros
- Completely free and MIT licensed, with no account or subscription required to run it
- Fully offline by default; nothing leaves your Mac unless you explicitly connect a cloud provider
- Native Swift app on Apple Silicon, not an Electron wrapper, so it stays lightweight
- Open source means you can actually verify what it does with your data instead of taking a privacy claim on faith
- Supports local models (Gemma, Qwen, GPT-OSS, Llama via MLX) and cloud providers side by side
Cons
- Mac-only, and several features require Apple Silicon plus recent macOS versions (macOS 26 for the sandboxed code execution)
- Local model quality depends on your hardware; heavier models need a Mac with real memory headroom
- Newer project with a fast-changing feature set, so docs and plugins are still catching up in places
A genuinely useful pick for Mac users who want AI agents without sending every prompt to someone else's server, as long as you're comfortable running local models or bringing your own cloud API keys.
Capabilities
Core features
- Fully offline local inference via MLX on Apple Silicon
- Persistent agent memory across sessions with automatic pruning
- Autonomous agent loop with file, search, and git tools
- Sandboxed code execution in an isolated Linux VM
- Cryptographic per-agent identity and scoped access keys
- Drop-in OpenAI, Anthropic, and Ollama-compatible API endpoints
- Full MCP server and client support
- Connects to OpenAI, Anthropic, Gemini, Grok, and other cloud providers when you want extra power
AI stacks & blueprints
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Common questions
Is Osaurus free?
Osaurus offers a free tier you can use without paying. Browse QuestLoops for verified ways to get more out of it for free.
What is Osaurus used for?
Own your AI: agents that run 100% locally on your Mac It falls under the Developer Tools category.
What are the best alternatives to Osaurus?
You can compare Osaurus side-by-side with similar Developer Tools on QuestLoops to weigh free-tier limits, pricing, and tradeoffs before deciding.
Community workarounds
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