Security
Every listing in the Security section, from all 7 categories below.
Filters and sorting
246 results, page 1 of 9
2FAS
Open-source authenticator app with browser-extension push approvals.
AdAway
System-wide Android ad blocker using hosts files or a local VPN.
AdGuard DNS
Public filtering DNS resolver with encrypted transports.
AdGuard Home
Network-wide ad and tracker blocking in a single binary, with encrypted DNS built in rather than bolted on.
Aegis Authenticator
An encrypted two-factor authentication app for Android with real backups and imports from every other authenticator.
AFWall+
iptables firewall for rooted Android with per-app rules.
age
File encryption with one small key, no options to get wrong, and a command you can remember.
Aircrack-ng
Assess wireless network security with a suite of command-line tools.
airgeddon
Menu-driven wireless auditing script for Linux.
AirVPN
Activist-run VPN with OpenVPN, WireGuard and detailed server statistics.
Algo VPN
Ansible scripts that stand up a personal WireGuard and IPsec VPN.
Amass
OWASP tool that maps an organisation's external attack surface and assets.
AmneziaVPN
Sets up your own VPN server on a machine you rent, then connects to it, with obfuscated protocols for networks that block ordinary VPNs.
Authelia
Self-hosted single sign-on and two-factor portal for reverse proxies.
authentik
Self-hosted identity provider for single sign-on and application access control.
Authy
Mobile two-factor authenticator with encrypted cloud backup.
Autopsy
Digital forensics platform for disk, file and timeline analysis.
bettercap
Network reconnaissance and man-in-the-middle testing framework.
Bitwarden
An open-source password manager with free cross-device sync, apps for every platform and optional paid plans.
BlackArch Linux
Arch-based security distribution with a repository of 2,800 tools.
Blocky
Lightweight DNS proxy with blocklists, written for container deployments.
Blokada
Mobile ad blocker with a local filter and an optional VPN tier.
BloodHound Community Edition
Maps attack paths through Active Directory and Entra ID relationships.
Briar
Peer-to-peer encrypted messaging over Bluetooth, Wi-Fi and Tor.
Burp Suite Community Edition
PortSwigger's free web security testing toolkit, for intercepting, inspecting and modifying HTTP traffic by hand.
Caido
Web security testing proxy for auditing web applications.
CAINE
Ubuntu-based digital forensics live distribution.
capa
Identify likely capabilities inside executable files.
Caprine
Unofficial desktop app for Facebook Messenger.
Certipy
Audit Active Directory Certificate Services configurations.