# SoftEther VPN

> Free open-source, cross-platform, multi-protocol VPN client and VPN server software

**Wikidata**: [Q17082132](https://www.wikidata.org/wiki/Q17082132)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/SoftEther_VPN)  
**Source**: https://4ort.xyz/entity/softether-vpn


## References

1. [Source](https://ja.softether.org/9-about/news/800-open-source)
2. [SoftEther VPN のライセンスを GPLv2 から Apache License 2.0 へ変更したことの宣言書. 2019](https://ja.softether.org/5-download/src/190121_switch_to_apache_license)
3. [Declaration of license switch for SoftEther VPN from GPLv2 to Apache License 2.0. 2019](https://www.softether.org/5-download/src/190121_switch_to_apache_license)
4. [2025](https://github.com/EvanLi/Github-Ranking/blob/master/Data/github-ranking-2025-07-06.csv)
5. [Specification - SoftEther VPN Project](https://www.softether.org/3-spec)
6. [仕様 - SoftEther VPN プロジェクト](https://ja.softether.org/3-spec)
7. [Release 5.1. 2018](https://github.com/SoftEtherVPN/SoftEtherVPN/releases/tag/5.1)
8. [Source](https://api.github.com/repos/SoftEtherVPN/SoftEtherVPN/releases)
9. [Release 4.23. 2017](https://github.com/SoftEtherVPN/SoftEtherVPN/releases/tag/v4.23-9647-beta)
10. [Release 5.02.5181](https://github.com/SoftEtherVPN/SoftEtherVPN/releases/tag/5.02.5181)
11. [Source](https://api.github.com/repos/SoftEtherVPN/SoftEtherVPN)
12. [Source](https://github.com/SoftEtherVPN/SoftEtherVPN)
13. [Penetrates Firewall by SSL-VPN - SoftEther VPN Project](https://www.softether.org/4-docs/2-howto/7.Replacements_of_Legacy_VPNs/1.Penetrates_Firewall_by_SSL-VPN)
14. Quora