NAT traversal tool

Rathole is a high-performance reverse proxy and NAT traversal tool written in Rust. It functions as a secure tunneling server and client architecture designed to expose local services to the internet by forwarding traffic from a public IP to a private device behind a firewall. The system establishes encrypted tunnels between a public server and a private host to ensure private communication. It utilizes token-based authentication to validate identities between the server and client for each individual service. The project provides TCP and UDP port forwarding and manages private tunnels to fa

Firezone is a zero trust network access platform that uses WireGuard to provide identity-based connectivity to internal network resources. It functions as a virtual private network that synchronizes authentication and user groups via OpenID Connect providers. The system implements a group-based access control engine to enforce least privilege by restricting network resources to specific user groups. It utilizes holepunching and relay protocols for NAT traversal to establish encrypted tunnels through firewalls without requiring inbound ports. The platform includes a control plane for managing

Rathole is a reverse proxy tunneling tool designed to expose local services behind firewalls and network address translation to the public internet. It functions as a secure tunneling infrastructure that enables remote access to private network resources without requiring manual router port forwarding configurations. The system utilizes a client-server architecture where a public-facing gateway coordinates with a private-network agent. It distinguishes itself by multiplexing multiple logical service connections through a single persistent TCP stream, which reduces the overhead of maintaining

Gost is a Go-based network tunnel and multi-protocol proxy server. It functions as a gateway for routing TCP and UDP traffic, creating secure network tunnels between remote endpoints, and acting as a DNS proxy server to resolve domain name queries. The project is distinguished by its ability to implement multi-hop proxy chaining, which links multiple network nodes in a sequence to route traffic through specific paths. It also provides transparent proxying by integrating with virtual network interfaces to intercept system-level traffic without requiring manual client configuration. The system

gost is a multi-protocol proxy tunnel and secure tunneling server designed to route network traffic through encrypted connections. It functions as a traffic obfuscation gateway and a transparent proxy server capable of intercepting TCP and UDP traffic at the IP level. The project also includes a virtual network interface manager for creating TUN and TAP devices to intercept operating system packets. The system distinguishes itself through a chain-based request routing model, allowing traffic to pass through an ordered sequence of proxy nodes. It provides extensive transport-layer encapsulatio

n2n is a peer-to-peer VPN that creates an encrypted mesh network by establishing layer 2 overlay networks. It uses UDP tunneling to connect remote computers into a shared virtual local area network, allowing devices to communicate as if they were on the same physical Ethernet switch. The system utilizes a centralized signaling registry and federated coordination nodes to facilitate peer discovery and node registration. It implements NAT traversal through UDP hole punching and UPnP port mapping, while using supernode relay routing to ensure connectivity when symmetric NATs prevent direct peer-

This project is a high-performance reverse proxy designed to expose local services to the internet. It provides a comprehensive suite of tools for managing network traffic, including support for TCP and UDP stream multiplexing, connection pooling, and load balancing across proxy instances. The system facilitates secure communication through TLS encryption, data compression, and multiple authentication methods such as OpenID Connect, shared tokens, and basic password protection. The software offers granular control over HTTP traffic, enabling users to route requests based on subdomains or URL

EasyTier is a decentralized peer-to-peer virtual private network and mesh networking tool. It functions as a layer 3 network overlay that establishes secure tunnels between devices without requiring a centralized server or coordinator. It also serves as a WireGuard-compatible VPN, capable of acting as a server for standard WireGuard clients. The project distinguishes itself through multipath latency-based routing and the use of KCP or QUIC proxies to mitigate packet loss and stabilize connections in high-loss environments. It provides a virtual networking manager featuring a web management co

Bore is a TCP tunneling tool and localhost exposure utility used to route local TCP ports to public IP addresses. It functions as a TCP port forwarder that makes services running on a local machine accessible over the internet via a remote listener. The project includes a secure tunnel server implementation that manages incoming connections and routes traffic to connected local clients. It utilizes shared secret handshakes to authorize tunnel creation and restrict access to authorized users. The system provides capabilities for firewall bypass networking and remote tunnel hosting. It manages

Pangolin is a zero-trust remote access platform designed to provide secure, identity-aware connectivity to private network resources. It functions as a cloud-native network controller that orchestrates encrypted tunnels, traffic routing, and access policies across distributed environments. By leveraging WireGuard for secure data transport, the platform enables authenticated access to internal web applications, terminal sessions, and remote desktops without exposing services to the public internet. The platform distinguishes itself through a declarative infrastructure model that synchronizes n

Shadowsocks is a secure network tunneling tool designed for censorship circumvention and private internet connectivity. It functions as a proxy system that routes traffic through encrypted tunnels, allowing users to bypass regional network restrictions and protect data from interception across public infrastructures. The project utilizes a lightweight, custom proxy protocol that incorporates stream-based cipher encryption to obfuscate payload content and prevent deep packet inspection. By employing an asynchronous, event-driven networking model, the system manages concurrent connections effic

Hiddify is a cross-platform proxy client designed to manage secure network connections and traffic routing across desktop and mobile operating systems. It functions as a unified proxy manager, providing a centralized interface to configure and control various network proxy protocols for encrypted and private internet access. The application distinguishes itself by integrating local loopback interception, which configures the operating system network stack to route traffic through a local port for granular filtering. It also serves as a self-hosted infrastructure tool, enabling users to automa

OpenVPN is a cross-platform networking solution that establishes secure virtual private network connections by wrapping data traffic within encrypted tunnels. It functions as a server-side application that authenticates remote endpoints and routes encrypted traffic to provide access to private network resources across untrusted public networks. The software utilizes standard cryptographic protocols to perform mutual authentication and key exchange over a dedicated control channel. It verifies the identity of remote systems through certificate-based authentication, ensuring that only trusted e

V2ray-core is a modular network proxy engine designed to manage inbound and outbound traffic through a unified, rule-based processing pipeline. It functions as a background service that operates multiple concurrent network protocols within a single process, allowing for flexible traffic management and the independent handling of diverse communication streams. The project distinguishes itself through a highly decoupled architecture that treats network protocols as swappable modules, enabling the encapsulation of various transport layers into a consistent stream-based model. It features a centr

Chisel is a network tunneling tool that facilitates secure communication by encapsulating TCP and UDP traffic within HTTP requests. It functions as a connection multiplexer, consolidating multiple logical network streams into a single persistent connection to improve throughput and reduce overhead. By leveraging standard web protocols, the system enables firewall traversal and provides a mechanism for remote port forwarding and proxying. The project distinguishes itself through its focus on resilient connectivity and granular access control. It maintains persistent network sessions across uns

wireguard-go is a Go implementation of the WireGuard protocol that operates as a userspace tunneling engine. It functions as a cross-platform network interface designed to establish encrypted tunnels between peers without requiring modifications to the system kernel. By implementing the protocol in userspace, this project provides a consistent network stack that enables secure peer-to-peer communication across different operating systems. It allows for the creation and management of encrypted network interfaces and tunnels to route private traffic over public networks.

Reverse tunnel TCP and UDP

🌵 A charming TCP tunnel over WebSocket and Browser.

Fast and secure tunnels over HTTP/2

Allow internal services, running on localhost, to be accessed over the internet..

A Docker-based self hosted alternative to Ngrok