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strongSwanTunnelForge
Free

Free under GPLv2, with commercial licensing available as an option.

 Free

Free and open source under the GPL-3.0 licence.

Windows, macOS, Linux, Android, Self-hosted, Command line Android
  • Thorough IKEv2 implementation with many IETF extensions
  • Runs on Linux, Android, FreeBSD, macOS and Windows
  • Restores L2TP/IPsec connections on Android 12 and later
  • Works with existing servers without reconfiguring them
  • Configuration requires solid IPsec knowledge
  • Mainly configured through files and the command line
  • L2TP/IPsec with IKEv1 is an older protocol than WireGuard or IKEv2
  • Android only
Downloadable app, Self-hosted Downloadable app
Open source Open source
License: GPL-2.0 License: GPL-3.0-only
No account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.