Top TLS GitHub Repositories & Tools (2026)

A GUI client for Windows, Linux and macOS, support Xray and sing-box and others

Xray, Penetrates Everything. Also the best v2ray-core. Where the magic happens. An open platform for various uses.

Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS

Free V2ray Configs, Updating Every 15 minutes. 🚀🌐

A simple zero-config tool to make locally trusted development certificates with any names you'd like.

Web panel for sing-box — multi-protocol proxies, subscriptions, traffic statistics, automatic HTTPS and multi-node clusters. Fork of s-ui.

A cross-platform relay that composes TLS/TCP and QUIC/UDP independently for every flow.

Simple DNS proxy with DoH, DoT, DoQ and DNSCrypt support

Capturing SSL/TLS plaintext without a CA certificate using eBPF. Supported on Linux/Android kernels for amd64/arm64.

Multi-user anti-filtering panel, with an effortless installation and supporting more than 20 protocols to circumvent filtering plus the telegram proxy.

Cross-platform GUI proxy utility (Empowered by sing-box)

Cryptography Toolkit

BouncyCastle.NET Cryptography Library (Mirror)

CLI tool for a high QPS DNS benchmark

proxy kit for Linux/Windows/MacOS/Android

A modern, high-performance web server and reverse proxy built on Pingora Cloudflare Pingora's raw performance, wrapped in Caddy's minimalist developer experience

Terminal monitor for SDR hardware - written in Rust. Early development.

A cross-platform application that supports multiple methods to bypass SNI blocking, designed specifically for complex network environments.

Network Doctor is a cross-platform network troubleshooting TUI that turns interface, DNS, TCP, TLS, HTTP, proxy, and path-MTU checks into one plain-English diagnosis.

Open source platform for X.509 certificate based service authentication and fine grained access control in dynamic infrastructures. Athenz supports provisioning and configuration (centralized authorization) use cases as well as serving/runtime (decentralized authorization) use cases.