Best Linux Free Security Software

Fast and secure backup and versioning for files and directories

Network-wide ads & trackers blocking DNS server

Privacy-focused offline maps and GPS navigation for hiking, cycling, and driving.

Fast, secure browsing with built-in AI assistance

Fast, secure, efficient backup program

Fast, simple, and secure web browsing

High-performance reverse proxy for NAT traversal

A secure password manager for teams

Generate Software Bill of Materials from container images and filesystems

Free backup software to store encrypted backups online

Open-source encryption tool that hides file contents, names, and folder structure before cloud sync.

A modern, secure password manager

Advanced offline password cracker supporting hundreds of hash types

Network-wide ad blocking DNS server for homes and small businesses

The fast, private, and independent web browser that puts your security first.

The all-in-one multi honeypot platform for comprehensive network defense.

Interactive application firewall for GNU/Linux

Stateless password manager

A privacy‑focused browser with built‑in community comments.

Open-source antivirus engine for detecting malware across platforms

A privacy-focused, freedom-loving fork of the Mozilla Firefox browser.

Deduplicating backup solution

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

Lightweight Intranet Penetration Proxy Server