tmoonlight/NSmartProxy

Health v2 · maintenance only

Adoption not part of the score

1386 stars · 385 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

NSmartProxy is an open-source NAT traversal / reverse proxy tool that creates secure tunnels from a public endpoint to services running behind a firewall or NAT. It consists of a server component deployed on a public host and a client component deployed on the intranet, built fully asynchronously on .NET Core.

Use cases

• expose a local web server to the internet behind NAT
• remote desktop into a home computer from outside
• port forward FTP, SSH, or RDP through a firewall
• access intranet services without a public IP
• tunnel TCP and UDP services through a public relay server
• self-host a reverse proxy tunnel server

When to choose

• you need to expose internal TCP/UDP services to the public internet
• you want a cross-platform (Windows/Linux/macOS/Docker) tunneling solution
• you need to map multiple LAN services through a single client
• you prefer a free, self-hosted alternative to ngrok

When to avoid

• you only need HTTP-level load balancing rather than NAT traversal
• you require a managed cloud tunnel service with no server setup
• your environment lacks .NET Core or Docker and you need a single static binary
• you need enterprise-grade support or extensive documentation

Facets

application · maturity active

proxy networking http-server websocket networking self-hosted developer-tools security windows cross-platform dotnet nat-traversal reverse-proxy tunnel port-forwarding tcp udp p2p intranet remote-access linux macos docker

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markdown · JSON · MCP: product_card(name="tmoonlight/NSmartProxy")