Top SECURE GitHub Repositories & Tools (2026)

Customer-run client for Secure MCP Tunnel: connect private or localhost MCP servers to ChatGPT, Codex, the Responses API, and AgentKit without exposing them to the public internet.

Boot operating systems directly from ISO/WIM images

Secure Boot & Measured Boot for NixOS [maintainers=@blitz @raitobezarius @nikstur]

scanner detecting the use of JavaScript libraries with known vulnerabilities. Can also generate an SBOM of the libraries it finds.

Manages application of security headers with many safe defaults

Sync-in · Sovereign platform for file storage, sharing, synchronization, and collaboration.

WinDbg-like kernel debugger for Windows, from Linux and macOS

PHP Standard Library

This is the development repository for the OpenFHE library. The current stable version is 1.5.1 (released on April 10, 2026). The current development version is 1.6.0 (released on September 28, 2026).

QuickDrop is an easy-to-use file sharing application that allows users to upload files without an account, generate download links, and manage file availability, file encryption and optional password protection.

Artifact Ratification Framework (CNCF Sandbox)

Clip Share Android client. Share clipboard between devices. Share files and screenshots securely.

A Messaging Layer Security (RFC 9420, MLS) implementation in TypeScript

Forge is the open-source runtime for Anthropic's Agent Skills standard — built for the agent that runs next to a service, in your environment, on infrastructure you already operate. Write a SKILL.md. Compile to a portable, hardened agent. Deploy it anywhere containers run: Kubernetes, on-prem, air-gapped, embedded in CI, or as an A2A endpoint.

Tox Reference implementation for Android

Open framework for confidential AI