Most AI dev tools ship your code off to run somewhere else - exposing it to network vulnerabilities and quiet data collection. Sage does the opposite: it brings performant AI to your machine and keeps it there.

It's a local inference engine we built from scratch in Rust. The engine, the agent, and the tooling are all our own. That means we enforce security and data permissions directly, instead of trusting a model's guardrails to behave. One dependency, one place to point the blame if something breaks.

What's inside

• Editor, integrated terminal, file viewers, IDE - the surfaces you actually build in.
• Security: All agents and tool calls run inside a kernel-level sandbox, so it can only touch what you allow. This isn't something a prompt or agent controls. It's a boundary the OS holds for you.
• One click to run: We kept it simple, no Docker, no servers to point at, no config files. Download the app, open it and its running.

Nothing leaves your computer: No telemetry, no accounts, no cloud latency, no network downtime.

We launched first to over 100 devs on our waitlist but now it's public.

Try it and let us know if something breaks: