Loopbox replaces port juggling with real local infrastructure: one IP per project, stablelocalhost hostnames, and zero port conflicts. Built natively for macOS in Rust, it’s fast and reliable. This launch also introduces the Agent API, so coding agents and tools can provision, discover, and manage local environments programmatically.

Framer — Launch websites with enterprise needs at startup speeds.

Launch websites with enterprise needs at startup speeds.

I built Loopbox because I kept hitting the same pain every day: I switch between multiple projects, they all want the same ports (same for databases), and everything starts auto-incrementing. That broke auth provider redirects and forced me to carefully start services in the “right” order just to keep configs working. At first, I only wanted to solve port conflicts. But while building, I realized the bigger problem was control and visibility, especially with AI workflows. I was constantly copy/pasting error logs into AI tools. So Loopbox evolved into local infrastructure with one IP per project, stable .localhost hostnames, and an Agent API. Now agents can directly read service and traffic logs, and start/stop/restart services themselves. That means less manual debugging, fewer broken redirects, and a much smoother dev loop. I am using it every day and it helps me a lot at being more productive.

Framer — Launch websites with enterprise needs at startup speeds.

Launch websites with enterprise needs at startup speeds.

LOOPBOX - LOCAL SANDBOX CONTROL PLANE

Give every project a dedicated loopback IP and hostname

Give every project a dedicated loopback IP and hostname