Best Open-Source Security Software

Interactive, scriptable man‑in‑the‑middle proxy for HTTP, HTTPS and WebSocket traffic

Cross-platform password manager compatible with Keepass 2.x

Open‑source V2Ray client for Android, giving power users full proxy control

The web app for all your data manipulation and decoding needs

General purpose TLS and crypto library

Open-source antivirus engine for detecting malware across platforms

High-performance reverse proxy for NAT traversal

Secure and fast microVMs for serverless computing

An open platform for various uses

Secure access to all infrastructure

Secrets detection for GitHub, GitLab and Bitbucket repositories

Secure, automated dependency management for Node.js projects

Secure, self‑hosted development environments for teams

Secure dotenv for developers

A modern, secure password manager

Password management for macOS

Comprehensive authentication framework

A fast, secure, minimalist note‑taking app for students and freelancers

Secure, private budgeting for individuals and households

Private and secure note-taking app

Open-source platform for secrets, certificates, and privileged access management

Simple vaultless password manager in Go

Stateless password manager