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SoftEther VPN vs Libreswan: catalog facts
SoftEther VPN	Libreswan
Free Free and open source under the Apache license.	Free Free software under GPLv2.
Windows, macOS, Linux, Self-hosted	macOS, Linux, Command line
Multi-protocol server covering many VPN setups SSL-VPN that passes through restrictive firewalls	Standards-based IPsec with IKEv1 and IKEv2 Packaged in Fedora, RHEL/EPEL and Arch Linux
Configuration has many options and a learning curve Documentation site looks dated	IPsec configuration has a steep learning curve No graphical interface
Downloadable app, Self-hosted	Downloadable app
Open source	Open source
License: Apache-2.0	License: GPL-2.0
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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