sish
SSH-based reverse tunneling for HTTP(S), WebSockets, and TCP
4.7k stars 333 forks last commit first released MIT
Actively maintained
Last commit 25 Jun 2026.
sish is an open-source tunneling server that lets you securely expose services running on localhost to remote users using only SSH. It supports reverse tunnels for web traffic and raw TCP, making it a lightweight alternative to services like Serveo or ngrok.
Key Features
- Expose local HTTP and HTTPS services through an SSH reverse tunnel
- Support for WebSocket (WS/WSS) tunneling
- Raw TCP port tunneling via SSH remote port forwarding
- Centralized server you can run on your own domain and infrastructure
- Works with standard SSH clients (no custom agent required)
Use Cases
- Sharing a local development web server for reviews or debugging
- Providing temporary access to internal tools without opening firewall ports
- Exposing non-HTTP services (TCP) for testing and remote connectivity
sish is a practical choice when you want a simple, SSH-native tunneling workflow and full control over the tunneling endpoint by running your own server.
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