# 内网穿透与实时通信 (Tunneling, WebRTC, Web Socket Servers and Other Routers)

> 内网穿透、WebSocket、WebRTC 服务,把本地服务暴露到公网。
> 共 19 个免费服务。数据来源:https://github.com/ripienaar/free-for-dev(MIT)。更新时间:2026-09-10

- [cname.dev](https://cname.dev/) — Free and secure dynamic reverse proxy service.
- [conveyor.cloud](https://conveyor.cloud/) — Visual Studio extension to expose IIS Express to the local network or over a tunnel to a public URL.
- [Expose](https://expose.dev/) — Expose local sites via secure tunnels. The free plan includes an EU Server, Random subdomains, and Single users.
- [Hamachi](https://www.vpn.net/) — LogMeIn Hamachi is a hosted VPN service that lets you securely extend LAN-like networks to distributed teams with a free plan that allows unlimited networks with up to 5 people
- [Hookdeck](https://hookdeck.com/pricing) — Develop, test, and monitor your webhooks from anywhere. 100K requests and 100K attempts per month with three days retention.
- [localhost.run](https://localhost.run/) — Expose locally running servers over a tunnel to a public URL.
- [localtonet](https://localtonet.com/) — Multi-protocol tunneling for HTTP, TLS, TCP, UDP, File Server (Default, SFTP, WebDAV), and Proxy Tunnel (HTTP, SOCKS5, Shadowsocks, VLESS). Free plan: 1 tunnel, 1GB/month bandwidth, 30 min timeout (excl. HTTP Tunnels).
- [localtunnel](https://theboroer.github.io/localtunnel-www/) — Expose locally running servers over a tunnel to a public URL. Free hosted version, and [open source](https://github.com/localtunnel/localtunnel).
- [LocalXpose](https://localxpose.io) — Reverse proxy that enables you to expose your localhost servers to the internet. The free plan has 15 minutes tunnel lifetime.
- [ngrok.com](https://ngrok.com/) — Expose locally running servers over a tunnel to a public URL.
- [Pinggy](https://pinggy.io) — Public URLs for localhost with a single command, no downloads required. HTTPS / TCP / TLS tunnels. The free plan has 60 minutes tunnel lifetime.
- [Radmin VPN](https://www.radmin-vpn.com/) — Connect multiple computers together via a VPN-enabling LAN-like network. Unlimited peers. (Hamachi alternative)
- [serveo](https://serveo.net/) — Expose local servers to the internet. No installation, no signup. Free subdomain, no limits.
- [stun:global.stun.twilio.com:3478?transport=udp](stun:global.stun.twilio.com:3478?transport=udp) — Twilio STUN
- [stun:stun.l.google.com:19302](stun:stun.l.google.com:19302) — Google STUN
- [Tailscale](https://tailscale.com/) — Zero config VPN, using the open-source WireGuard protocol. Installs on MacOS, iOS, Windows, Linux, and Android devices. Free plan for personal use with 100 devices and three users.
- [webhookrelay.com](https://webhookrelay.com) — Manage, debug, fan-out, and proxy all your webhooks to public or internal (i.e. localhost) destinations. Also, expose servers running in a private network over a tunnel by getting a public HTTP endpoint (`https://yoursubdomain.webrelay.io <----> http://localhost:8080`).
- [Xirsys](https://www.xirsys.com/pricing/) — Unlimited STUN usage + 500 MB monthly TURN bandwidth, capped bandwidth, single geographic region.
- [ZeroTier](https://www.zerotier.com) — FOSS managed virtual Ethernet as a service. Unlimited end-to-end encrypted networks of 25 clients on the free plan. Clients for desktop/mobile/NA; web interface for configuration of custom routing rules and approval of new client nodes on private networks