Open-source alternatives to ngrok

frp

A high-performance open-source reverse proxy for NAT traversal made in China, a self-hosted alternative to ngrok.

Chisel

快速的 TCP/UDP 隧道，通过 HTTP 传输并用 SSH 加密。

bore

用 Rust 编写的极简 TCP 隧道，几行命令把本地端口暴露到公网。