- Port Zero eliminates port conflicts by assigning stable *.portzero.local domains instead of port numbers, preventing EADDRINUSE errors.
- It supports running multiple development branches simultaneously using git worktrees, each with its own unique URL.
- Cloud tunnels extend local domains to devices like phones and tablets with HTTPS, enabling demo and preview sharing.
- Port Zero offers agent-ready features, including MCP tools for coding agents to manage tunnels without manual configuration.
- Pricing includes a free, open-source tier for local tunnels, with paid plans starting at $49/month for unlimited cloud tunnels and additional features.