Open source
Alternatives to Proton VPN
12 tools like Proton VPN, chosen by what they do. About Proton VPN
Open source
NetBird
Open source zero trust network access built on WireGuard
Network DefenseOpen source zero trust network
Paid
Sucuri
Website security service for malware cleanup and firewall
Network DefenseWebsite firewall and cleanup
Freemium
hCaptcha
Privacy-focused CAPTCHA and bot detection for sites and apps
Network DefensePrivacy focused CAPTCHA
Open source
ModSecurity
Open source web application firewall engine used with OWASP rules
Network DefenseOpen source WAF engine
Curated
Friendly Captcha
Invisible, privacy-friendly CAPTCHA that uses proof-of-work
Network DefensePrivacy first CAPTCHA
Open source
Pomerium
Identity-aware access proxy for private apps, SSH and Kubernetes
Network DefenseIdentity aware access proxy
Open source
Headscale
Self-hosted, open source server for a Tailscale network
Network DefenseSelf hosted Tailscale server
Open source
Open source
BunkerWeb
Open source reverse proxy WAF that protects web services
Network DefenseOpen source next gen WAF