Best Web Open-Source Security Software

Secure authentication for Next.js apps

Battle‑tested Solidity library for secure smart contract development

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

Secure, self‑hosted development environments for teams

Real‑time spatial intelligence from ordinary WiFi signals

Safe home for all your data

Privacy-focused Segment alternative

Stateless password manager

Connect, secure, control, and observe services

Open-source antivirus engine for detecting malware across platforms

Deduplicating backup solution

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

Secure CommsOS for mission-critical operations

Lightweight Intranet Penetration Proxy Server

Secure access to all infrastructure

Open source password manager for teams

Secure, private budgeting for individuals and households

Secure, fast file transfers from the command line

Fast and lightweight DNS proxy as ad-blocker for local network

Distributed operating system for blockchain app builders

Private and secure note-taking app

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