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Fortinet FortiClient vs OpenVPN Access Server comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 14, 2025

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
5.7
Fortinet FortiClient improved productivity, enabled better remote work, reduced costs, and enhanced security despite some unused features.
Sentiment score
3.2
OpenVPN Access Server offers high ROI and efficiency, saving developers time despite initial costs, praised for simplicity and security.
The VPN performance has a substantial impact on our remote workforce.
Technology Consultant at 1ware
 

Customer Service

Sentiment score
6.7
Fortinet FortiClient's support is praised for responsiveness but criticized for inconsistency and delayed responses compared to competitors.
Sentiment score
4.3
OpenVPN Access Server offers responsive support, complemented by extensive online resources, leading to high user satisfaction and effective issue resolution.
They initiate the troubleshooting process quickly and resolve issues in a timely manner.
Senior Manager IT at a tech services company with 1,001-5,000 employees
In 99% of cases, we do not have to do configurations on our own as they are normally handled by their service providers.
Director at a manufacturing company with 11-50 employees
They provide very good support, and an issue I had was resolved quickly over the phone.
Head IT at Burraq Cyber Security Solutions
I would rate the technical support an eight on a scale of one to ten.
DevSecOps Engineer at a tech company with 51-200 employees
Any issue was solved in five to ten minutes.
System Network Administrator at a consultancy with 201-500 employees
It was very good, and I would rate it an eight.
Chief Cloud Architect at a tech vendor with 10,001+ employees
 

Scalability Issues

Sentiment score
7.2
Fortinet FortiClient is scalable, suitable for small to large enterprises, but reviews on ease of scaling are mixed.
Sentiment score
6.4
OpenVPN Access Server is scalable but faces challenges in strict regions and may need restarts for horizontal scaling.
We normally take into consideration while installing the product that it can scale up to approximately 20%, but not more than that.
Director at a manufacturing company with 11-50 employees
Most of our clients are using the free version rather than the paid version due to the high range of maximum users available for the free version.
Senior Technical Manager at Flexaccel
I hope Fortinet will start an insider developer program where professionals can provide feedback on new releases to ensure improvements.
Head IT at Burraq Cyber Security Solutions
When we deploy and install OpenVPN Access Server, the principle is to install and forget.
System Network Administrator at a consultancy with 201-500 employees
It's not very easy to expand, and it would be beneficial if the process were simpler.
Chief Cloud Architect at a tech vendor with 10,001+ employees
It is scalable on AWS because it is a matter of increasing the instance size and increasing the number of licenses.
DevSecOps Engineer at a tech company with 51-200 employees
 

Stability Issues

Sentiment score
7.9
Fortinet FortiClient is highly stable, with minor issues mostly network-related, and users frequently rate it nine or ten.
Sentiment score
6.7
OpenVPN Access Server is mostly stable and reliable, with occasional issues generally resolved quickly and rated highly by users.
Its stability level is excellent.
IT Manager at CNE
I normally get a call within 15-20 minutes after logging a complaint.
Director at a manufacturing company with 11-50 employees
Fortinet FortiClient is a stable product with no glitches or latency issues.
Senior Technical Manager at Flexaccel
Regarding stability, I have not had any crashes, performance issues, or stability issues with OpenVPN Access Server.
DevSecOps Engineer at a tech company with 51-200 employees
I find it very stable.
System Network Administrator at a consultancy with 201-500 employees
 

Room For Improvement

Fortinet FortiClient needs improved management, simplicity, features, compatibility, pricing, connectivity, scalability, authentication, and better support across OS.
OpenVPN Access Server needs enhanced usability, security, scalability, better integration, performance, compatibility, user tools, and competitive pricing options.
FortiClient needs improvement in restricting user information and ensuring more secure customer data to better protect source code and reduce the risk of security breaches.
Head IT at Burraq Cyber Security Solutions
There are advanced features like Zero Trust that I currently do not use but could be beneficial for security.
Senior Manager Tech Compliance at Qenta Inc.
Fortinet frequently releases updates without thorough testing.
Senior Manager IT at a tech services company with 1,001-5,000 employees
If they had a one-click setup where you provide credentials instead of manually running commands, that would be beneficial.
Chief Cloud Architect at a tech vendor with 10,001+ employees
If there was a dedicated plan for startups, it would be really helpful.
Devops Engineer at Emergent
You can see who can access what resources from the user view, but you can also see the reverse, which is which resource can be accessed by what users.
DevSecOps Engineer at a tech company with 51-200 employees
 

Setup Cost

Fortinet FortiClient is cost-effective for basic VPNs, with competitive licensing for advanced features despite recent price increases.
OpenVPN Access Server provides cost-effective licensing and minimal setup costs, offering excellent value for enterprises evaluating VPN solutions.
FortiClient is a value-for-money product and is not considered expensive compared to similar products on the market.
Global Head of IT Infrastructure at EPL Americas
Justifying the price to clients can be difficult.
Head IT at Burraq Cyber Security Solutions
FortiClient is included in a package with the UTM features, so there is no separate cost for it.
Senior Manager Tech Compliance at Qenta Inc.
My experience with pricing is excellent as the pricing is free.
Service Delivery Manager at CasCom
The experience with pricing, setup cost, and licensing for OpenVPN Access Server is really good, not that expensive.
Devops Engineer at Emergent
My experience with the pricing, setup cost, and licensing cost of OpenVPN Access Server is that the licensing is fair for the value provided.
DevSecOps Engineer at a tech company with 51-200 employees
 

Valuable Features

Fortinet FortiClient provides cost-effective, comprehensive security with seamless integration, advanced features, and ease of deployment and management.
OpenVPN Access Server is praised for its security, user-friendliness, multi-platform compatibility, and robust remote access capabilities.
The most valuable feature of FortiClient is its high security level.
Head IT at Burraq Cyber Security Solutions
We appreciate its VPN capabilities and the features that offer extra security functionalities like antivirus and malware scanning.
Infrastructure Manager at a retailer with 501-1,000 employees
I strongly recommend this solution, especially for Fortinet customers who use FortiGate or other Fortinet products, as they can easily integrate these features and exchange information seamlessly.
Technology Consultant at 1ware
The most valuable features of OpenVPN are its ease of use, client familiarity, end-user familiarity, operating system integration, and price points.
Service Delivery Manager at CasCom
The main benefits I have seen from using OpenVPN Access Server include secure access to private resources over the public internet.
DevSecOps Engineer at a tech company with 51-200 employees
OpenVPN Access Server has positively impacted my organization by allowing access to our private services, enhancing security, and enabling remote work from anywhere.
DevOps and Site Reliability Engineer at Honey Insurance
 

Categories and Ranking

Fortinet FortiClient
Ranking in Enterprise Infrastructure VPN
2nd
Average Rating
8.0
Reviews Sentiment
6.7
Number of Reviews
102
Ranking in other categories
Endpoint Protection Platform (EPP) (12th), Endpoint Compliance (1st)
OpenVPN Access Server
Ranking in Enterprise Infrastructure VPN
1st
Average Rating
8.4
Reviews Sentiment
6.5
Number of Reviews
55
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of March 2026, in the Enterprise Infrastructure VPN category, the mindshare of Fortinet FortiClient is 6.8%, down from 14.4% compared to the previous year. The mindshare of OpenVPN Access Server is 13.3%, down from 14.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Infrastructure VPN Mindshare Distribution
ProductMindshare (%)
OpenVPN Access Server13.3%
Fortinet FortiClient6.8%
Other79.9%
Enterprise Infrastructure VPN
 

Q&A Highlights

NC
Content Manager at PeerSpot
Oct 31, 2021
 

Featured Reviews

KL
Senior Technical Manager at Flexaccel
Remote access has become seamless and secure while deployment remains simple for our users
Performance could be improved today. People are now moving toward SASE, which stands for Secure Access, Secure Edge Solution. Fortinet also has that offering, which would be easier since it operates through the cloud, acting as a first line of defense. When the user connects to the internet, they connect to the cloud first for posture assessment and monitoring before connecting to the outside world. The impact is significant because nowadays people are adopting SASE. During COVID time, many users were trying to connect back to their office, causing the performance or CPU utilization of the firewall to increase tremendously, which slowed down performance. I have not worked with endpoint telemetry in Fortinet FortiClient that could have been helpful for threat mitigation.
Emmanuel Chebukati - PeerSpot reviewer
DevSecOps Engineer at a tech company with 51-200 employees
Secure remote access has protected diverse users while access controls provide precise permissions
The user interface of OpenVPN Access Server is good but can be improved. I would prefer to see it become more intuitive. I use Twingate as an alternative, and in Twingate, you see resources, while in OpenVPN Access Server, those would be IP addresses. You get to see dashboards and access views of who can access a particular resource or subnet. You can see who can access what resources from the user view, but you can also see the reverse, which is which resource can be accessed by what users. That reverse view would be a nice addition to have in a dashboard. Additionally, access logs associated with that resource would be helpful, so it would be beneficial to have different views for the same content. Beyond the positive aspects, I would like to see improvements in OpenVPN Access Server. Twingate offers a different approach to the same problem by moving more towards resource-specific resources and fine-grained zero-trust access, as opposed to entire subnets and entire networks. I would prefer to see views on resources. In the same way that we can define subnets, perhaps we could have views that describe what this particular subnet does and what this particular resource does. Then we can assign those resources and subnets to individual users and groups. It is more about granularizing the resources that can be accessed rather than simply bundling them under subnets or a list of subnets, which is the current approach. Apart from that, I would like to see UI enhancements in OpenVPN Access Server in the future. Making it more modern would be beneficial.
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Top Industries

By visitors reading reviews
Manufacturing Company
11%
Computer Software Company
10%
Comms Service Provider
8%
Financial Services Firm
6%
Computer Software Company
14%
Comms Service Provider
12%
Financial Services Firm
6%
University
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business59
Midsize Enterprise23
Large Enterprise25
By reviewers
Company SizeCount
Small Business34
Midsize Enterprise8
Large Enterprise14
 

Questions from the Community

How does Fortinet FortiClient compare with Open VPN Access Server?
Fortinet FortiClient is a feature-rich solution that is easy to use and deploy without sacrificing safety and security. It has a very fast connection rate and has a built-in VPN. With this solution...
What's the difference between Fortinet's FortiEDR and FortiClient?
I suggest Fortinet’s FortiEDR over FortiClient for several reasons. For starters, FortiEDR guarantees solid protection because it continually scans servers for emerging vulnerabilities, which gives...
What do you like most about OpenVPN Access Server?
OpenVPN Access Server is a simple and easy-to-use solution that I can use myself without anybody's help.
What is your experience regarding pricing and costs for OpenVPN Access Server?
The experience with pricing, setup cost, and licensing for OpenVPN Access Server is really good, not that expensive. I am easily able to add new users from the OpenVPN Access Server official websit...
What needs improvement with OpenVPN Access Server?
The lack of an official Linux client is a clear gap. The community-maintained alternative is functional but not as stable or polished as the official Windows and macOS clients.
 

Also Known As

FortiClient
OpenVPN
 

Overview

 

Sample Customers

Black Gold Regional Schools, Amadeus Hospitality, Jefferson County, Chunghwa Telecom, City of Boroondara, Dimension Data
Verizon, Amazon, Disney, HP, Microsoft, IBM, Samsung
Find out what your peers are saying about Fortinet FortiClient vs. OpenVPN Access Server and other solutions. Updated: February 2026.
883,824 professionals have used our research since 2012.