Software Alternatives, Accelerators & Startups

StrongSwan.org

strongSwan is an Open Source IPsec-based VPN solution for Linux and other UNIX based operating systems implementing both the IKEv1 and IKEv2 key exchange protocols.

Best StrongSwan.org Alternatives & Competitors in 2025

The best StrongSwan.org alternatives based on verified products, community votes, reviews and other factors.
Filter: 12 Open-Source Alternatives. Latest update:

  1. OpenVPN - The Open Source VPN

    Open Source

    /openvpn-alternatives
  2. Fast, Modern, Secure VPN Tunnel

    Open Source

    /wireguard-alternatives
  3. Elegant user management, tailor-made for B2B SaaS

    Try for free freemium

    Try for free
  4. Control and build your own VPN 🛠️

    Open Source

    /outline-by-alphabet-alternatives
  5. Hamachi is a VPN service scaled to the unique needs of business owners.

    /hamachi-alternatives
  6. VPN client compatible with Cisco AnyConnect SSL VPN

    /openconnect-alternatives
  7. Extremely simple P2P Encrypted VPN

    Open Source

    /zerotier-one-alternatives
  8. Algo VPN is a set of Ansible scripts that simplify the setup of a personal WireGuard and IPsec VPN. It uses the most secure defaults available and works with common cloud providers.

    /algo-vpn-alternatives
  9. Private networks made easy Connect all your devices using WireGuard, without the hassle. Tailscale makes it as easy as installing an app and signing in.

    Open Source

    /tailscale-alternatives
  10. Radmin VPN allows you to securely connect computers, located behind firewalls. Download it Free.

    /radmin-vpn-alternatives
  11. A platform for building proxies to bypass network restrictions.

    /v2ray-alternatives
  12. ProtonVPN is a security focused FREE VPN service, developed by CERN and MIT scientists. Use the web anonymously, unblock websites & encrypt your connection.

    Open Source

    /protonvpn-alternatives
  13. Free service to create a personal VPN on your server

    Open Source

    /amnezia-vpn-alternatives
  14. free software for OpenVPN on OS X and macOS

    /tunnelblick-alternatives
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