Best Mac Open-Source Security Software

Open-source password manager with a generous free tier.

Private, end-to-end encrypted messaging.

An open platform for various uses

Network-wide ads & trackers blocking DNS server

Secure, fast file transfers from the command line

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

Open-source antivirus engine for detecting malware across platforms

Easy, secure WireGuard networking with 2FA

A note-taking app with a focus on security and simplicity

Password management for macOS

Stateless password manager

Fast, secure, efficient backup program

Fast and secure backup and versioning for files and directories

Secure, private budgeting for individuals and households

Secure dotenv for developers

Cross-platform password manager compatible with Keepass 2.x

Lightweight Intranet Penetration Proxy Server

General purpose TLS and crypto library

High-performance reverse proxy for NAT traversal

Generate Software Bill of Materials from container images and filesystems

Open-source, ad‑free ClashMeta proxy client for all major platforms

Free backup software to store encrypted backups online

Advanced offline password cracker supporting hundreds of hash types

A secure password manager for teams