SoftEther VPN Review

SoftEther VPN is an open-source, secure, fast VPN protocol designed for multiple platforms and firewall protection – an ideal choice for businesses.

It offers multiple encryption algorithms such as AES-256, SHA-2 and Camellia as well as user authentication options and voice guidance functions for newcomers.


SoftEther VPN is a free open-source VPN server software program, first developed as part of a master’s thesis at the University of Tsukuba in Japan, that supports multiple protocols. Available for Windows, Linux, Mac OS X and Solaris it is licensed under GNU General Public License (GPL), supporting mobile devices as well as cloud services.

SoftEther VPN makes use of Ethernet frames to create a virtual network cable between computers, which enables multiple TCP/IP connections to be established simultaneously, thus increasing throughput and decreasing communication delays. Furthermore, its data compression feature reduces communication volumes up to 80% for cost savings while improving performance.

SoftEther VPN stands out as an exceptional choice thanks to its impressive resistance against firewalls and NATs, with its built-in NAT-traversal feature enabling access to VPN servers behind corporate firewalls from home or mobile devices without needing to modify firewall settings manually. Likewise, SoftEther can even bypass deep packet inspection firewalls using Ethernet over HTTPS to camouflage its VPN connection.

SoftEther VPN boasts exceptional stability and reliability. It can easily adapt to changing network conditions – such as transitioning from WiFi to your mobile data plan – while automatically reconnecting with a stable server – a significant advantage over mobile-specific protocols like IKEv2/IPSec which require manual reconnections due to network changes.

SoftEther VPN not only features, but also offers APIs. These APIs enable developers to write original management applications for SoftEther VPN servers using JavaScript, TypeScript or C#; these apps can control various aspects of server management such as adding users or disabling specific VPN connections.

SoftEther VPN also offers an array of APIs and graphical tools for managing servers and client programs, such as the GUI Tool for Windows that makes using SoftEther VPN easy. Connected through SSL sessions, this tool sends management commands over SSL sessions directly to servers for administration – making its use simple yet straightforward. Downloaded for free on our website, the GUI Tool can also be installed on Linux/Mac OSX machines via WINE compatibility.


SoftEther VPN is one of the fastest VPN products currently available, featuring fast throughput and low latency rates. Furthermore, its strong firewall resistance allows it to support multiple protocol types including OpenVPN, L2TP/IPsec, SSTP and its own proprietary SSL-VPN protocol. Furthermore, with built-in NAT traversal it can penetrate any corporate network security such as IDS or firewalls without changing settings; additionally it has built-in NAT-traversal to easily bypass corporate network security measures without modifications being made necessary; additionally it can camouflage SSL-VPN transport packets into Ethernet over HTTPS packets so deep-packet inspection firewalls fail recognizing them as VPN tunnels.

SoftEther VPN was specifically created for modern Internet broadband lines and boasts superior performance compared to legacy PPP or L2TP protocols. Furthermore, its software can also be utilized with standard Ethernet-based LANs and private WAN networks as well as with various devices and operating systems.

This technology is well-known for its superior encryption abilities, using AES 256-bit and RSA 4096-bit encryption standards to keep your data protected against unauthorized access and highly secure. Plus, the software comes equipped with numerous user-friendly features.

SoftEther VPN goes beyond encryption algorithms by also encapsulating data into virtual Ethernet frames to enhance communication speed. The protocol can reduce network load by as much as 80% and allow more CPU time for processing and security functions.

SoftEther VPN’s multi-port and bridged connections enable enterprises with high-speed connections to maximize bandwidth utilization, supporting up to 64 simultaneous ports simultaneously – making it ideal for large enterprises looking for maximum network utilization. Its user-friendly client can be installed quickly across various operating systems.

SoftEther VPN’s intuitive user interface enables users to easily setup and utilize an encrypted VPN connection from any location with Internet access. Once connected, the client displays an IP address and port number; once this connection has been made users may select whether a fixed or dynamic IP address should be assigned and what form of authentication they prefer; once all necessary details have been entered the SoftEther VPN server will then begin transmitting traffic over its encrypted channel.


SoftEther VPN offers advanced security features to safeguard communications contents. Its programming safeguards against “man-in-the-middle attacks”, which allow third parties to eavesdrop and manipulate communication between two users without their knowledge. In addition, SoftEther offers encryption and electronic signature measures. Furthermore, this software is highly compatible with various network types producing wide bandwidths with high load requirements imposed upon large corporations or Internet service providers as well as networks serving homes or small businesses.

SoftEther VPN has proven more stable than older VPN protocols, speeding up communication by decreasing CPU and memory workload, while at the same time being easier for multiple operating systems to use on various devices. It supports multiple operating systems for maximum flexibility when communicating.

SoftEther VPN’s ease of construction through proxy servers, NATs or firewalls that was previously difficult with traditional VPN protocols like L2TP/IPSec and PPTP can help overcome network delays caused by proxy servers or NATs in its communications route.

SoftEther VPN protocol now features a new feature to stabilize VPN communications in unstable networks, compensating for communication loss by creating additional TCP/IP connections between VPN Client and VPN Server and transmitting VPN data via parallel transmission, thus increasing throughput while shortening delay times on networks with limited bandwidth.

SoftEther VPN protocol features other security measures, including user and server authentication. RADIUS servers commonly found in companies and NT domain/Active Directory as well as certificate authentication using X509 and RSA are supported, while AES encryption can ensure confidentiality of communications.

SoftEther VPN, as an open source project, is regularly maintained by its developers at the University of Tsukuba and an active global community of testers and developers, who help keep it up-to-date with all of the latest changes and fixes – an impressive feat in itself – making SoftEther VPN an indispensable choice for both business and private users alike.


SoftEther VPN stands out amongst many VPN apps by offering secure connections across global servers for safe browsing without risking your personal data. Furthermore, its easy setup process makes it ideal for those wanting a VPN without dealing with complex configurations or complicated procedures.

SoftEther offers another advantage by connecting across firewalls and NATs, making it possible to create site-to-site and tunnel-in-tunnel VPNs. Furthermore, SoftEther supports numerous advanced features, such as server obfuscation and dynamic port forwarding; additionally it is compatible with both TCP and UDP connections, making it suitable for small as well as large businesses alike.

This protocol is extremely fast, employing a streaming tunneling mechanism to bypass MTU (Maximum Transmission Unit) issues which often cripple VPN speeds. Furthermore, its reduced memory copies means it can achieve higher speeds levels more easily while being suitable for network devices with reduced CPU loads.

SoftEther VPN is also an ideal choice for mobile device users seeking a VPN, thanks to its user-friendly graphical client that makes setup easier than ever – almost all initial setup can be accomplished in just one click, which provides a distinct advantage over competing products that require lengthy command-line scripts for initial configuration.

SoftEther VPN Client offers a maintenance function to maintain internet connectivity whenever the server is stopped or restarted, particularly useful on networks susceptible to packet loss or jitter. Furthermore, it features an easy setup wizard and voice guide function which will assist users when getting started with SoftEther.

SoftEther VPN also features a tool that can test the performance of your VPN server, including bandwidth support as an important factor when choosing providers, detection and display of ping times, as well as other important details.

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