Discover the Best Open-Source Tunnel Projects Sorted by Stars

A fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet.

A rule-based tunnel in Go.

Set up a personal VPN in the cloud

一款轻量级、高性能、功能强大的内网穿透代理服务器。支持tcp、udp、socks5、http等几乎所有流量转发，可用来访问内网网站、本地支付接口调试、ssh访问、远程桌面，内网dns解析、内网socks5代理等等……，并带有功能强大的web管理端。a lightweight, high-performance, powerful intranet penetration proxy server, with a powerful web management terminal.

A platform for building proxies to bypass network restrictions.

Streisand sets up a new server running your choice of WireGuard, OpenConnect, OpenSSH, OpenVPN, Shadowsocks, sslh, Stunnel, or a Tor bridge. It also generates custom instructions for all of these services. At the end of the run you are given an HTML file with instructions that can be shared with friends, family members, and fellow activists.

Xray, Penetrates Everything. Also the best v2ray-core, with XTLS support. Fully compatible configuration.

GO Simple Tunnel - a simple tunnel written in golang

:zap: KCP - A Fast and Reliable ARQ Protocol

A Stable & Secure Tunnel based on KCP with N:M multiplexing and FEC. Available for ARM, MIPS, 386 and AMD64。N:M 多重化と FEC を備えた KCP に基づく安定した安全なトンネル。 N:M 다중화 및 FEC를 사용하는 KCP 기반의 안정적이고 안전한 터널입니다. Un tunnel stable et sécurisé basé sur KCP avec multiplexage N:M et FEC.

Cross-platform multi-protocol VPN software. Pull requests are welcome. The stable version is available at https://github.com/SoftEtherVPN/SoftEtherVPN_Stable.

List of ngrok alternatives and other ngrok-like tunneling software and services. Focus on self-hosting.

A fast TCP/UDP tunnel over HTTP

🕳 bore is a simple CLI tool for making tunnels to localhost

Go实现的Trojan代理，支持多路复用/路由功能/CDN中转/Shadowsocks混淆插件，多平台，无依赖。A Trojan proxy written in Go. An unidentifiable mechanism that helps you bypass GFW. https://p4gefau1t.github.io/trojan-go/

Cloudflare Tunnel client (formerly Argo Tunnel)

A Tunnel which Turns UDP Traffic into Encrypted UDP/FakeTCP/ICMP Traffic by using Raw Socket,helps you Bypass UDP FireWalls(or Unstable UDP Environment)

Local development against a remote Kubernetes or OpenShift cluster

A lightweight and high-performance reverse proxy for NAT traversal, written in Rust. An alternative to frp and ngrok.

Official git repo for iodine dns tunnel