Free to list, always.No paid rankings. Every recommendation explains its trade-offs.
OpenSourceChoice

Open-source projects tagged “Security”.

Inspect repositories, licenses, activity, and alternatives across the Security ecosystem.

12 projects connectedTag matches come from repository topics and catalog metadata.

Nuclei is a fast, customizable vulnerability scanner powered by the global security community and built on a simple YAML-based DSL, enabling collaboration to tackle trending vulnerabilities on the internet. It helps you

FreePricingFree and open sourceFree29.9K3.7K29 hours ago
License not declared

Infisical is the open-source platform for secrets, certificates, and privileged access management.

FreePricingFree and open sourceFree28.1K2.1K26 hours ago
GermanyLicense not declared

KeePassXC is a cross-platform community-driven port of the Windows application “KeePass Password Safe”.

FreePricingFree and open sourceFree28K1.8K5 days ago
Apache-2.0

Open-source authentication and authorization server providing SSO, 2FA, and access control for self-hosted apps.

25K1.2KActivity unavailable
GermanyLicense not declared

The authentication glue you need.

Free–CustomPricingFree open source; Enterprise availableFree–Custom22.4K1.7K26 hours ago
License not declared

World's most advanced database DevSecOps solution for Developer, Security, DBA and Platform Engineering teams. The GitHub/GitLab for database DevSecOps.

FreePricingFree and open sourceFree14.3K96133 hours ago
United StatesLicense not declared

OpenVPN is an open source VPN daemon

FreePricingFree and open sourceFree14.2K3.4K27 hours ago
MIT

Experience email the way you want with Mail0 – the first open source email app that puts your privacy and safety first. Join the discord: https://mail0.link/discord

FreePricingFree and open sourceFree10.7K1.3K2 months ago

Enterprise-ready zero-trust access platform built on WireGuard®.

FreePricingFree and open sourceFree8.7K42527 hours ago
GPL-3.0

Tuta is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices.

FreePricingFree and open sourceFree7.8K62328 hours ago
GPL-3.0

BleachBit system cleaner for Windows and Linux

FreePricingFree and open sourceFree6.3K42330 hours ago
License not declared

☁️ The Most Secure and Easy Selfhosted Home Server. Take control of your data and privacy without sacrificing security and stability (Authentication, anti-DDOS, anti-bot)

FreePricingFree and open sourceFree6K2334 days ago
Showing 12 of 12