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OPNsense® Reviews & Product Details

OPNsense® is an open-source, user-friendly firewall and routing platform that combines the extensive features of commercial products, ranging from a stateful firewall to web application control and integrated inline intrusion detection and prevention. Based on FreeBSD for long-term support, OPNsense’s focus on security brings unique features such as an easy to use one time password authentication for various components. Through its modular design and - the in house developed - Model View Controller framework the product is extendible, and API functionality is readily available. The robust and reliable update mechanism gives OPNsense® the ability to provide important security updates in a timely fashion.

Seller

Deciso B.V.

Discussions

OPNsense® Community

Languages Supported

Czech, German, English, French, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Spanish, Turkish, Chinese (Simplified), Chinese (Traditional)

Overview by

Jos Schellevis

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OPNsense® Media

The flexible OPNsense dashboard with various active widgets.

Snapshots capture the base system at a given moment. They’re useful for administration, as they introduce a fallback boot option when more risky operations like major upgrades or experimental configurations fail. If something goes wrong, it is quite simple to roll back to the previous working state.

The DNS insight dashboard, giving users a comprehensive view of their DNS traffic and activity.

OPNsense® Demo - Dashboard Traffic Graph Widget

Showing the Traffic Graph widget, full width on the dashboard.

OPNsense® Reviews (5)

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SB

Scott B.

Unix Linux System Administrator III

Small-Business (50 or fewer emp.)

10/14/2025

"Flexible Firewall Solution with Strong Community Support, but Complex Configuration Options"

4.5/5

What do you like best about OPNsense®?

This product is highly flexible and supported by a helpful community. It meets all of my firewall requirements. Review collected by and hosted on G2.com.

What do you dislike about OPNsense®?

Because it is flexible, there are many options available for finding the best configuration. Review collected by and hosted on G2.com.

KS

Karan S.

Project Engineer

Enterprise (> 1000 emp.)

10/17/2024

"My Experience with OPNSense"

4.5/5

What do you like best about OPNsense®?

the thing which i liked using OPNsense it has very good contenet filtering and from my seniors i have heard it is very cost effective to our company also in my personal use i have seen it has good authentication but in the first place it has good user friendly interface also it has a good performance response time is very good also i am using this like everday . Review collected by and hosted on G2.com.

What do you dislike about OPNsense®?

there are not much dislike here but one thing i wants to point out is initial setup is quite difficult if you are not aware of much of the tech also for personal use i was going through the documentation but it was not much of help full Review collected by and hosted on G2.com.

What problems is OPNsense® solving and how is that benefiting you?

it has good network security without connecting to this i cant access my company contenet which is very good idea so that some how if some has my laptop with out connecting to OPNsense they cant access the content also as i have mentioned earlier it is cost effective it has good web filtering like my organisation doesnt allow us to open our personal gmail in company laptop so we cant access all thanks to OPNsense Review collected by and hosted on G2.com.

SK

Suraj K.

Hardware and Network Engineer

Mid-Market (51-1000 emp.)

9/23/2024

"Secure our network"

5/5

What do you like best about OPNsense®?

OPNsense has a user-friendly web interface, making it easy to use even for people who aren’t very technically knowledgeable. The platform gets regular updates, ensuring that security issues are fixed promptly and new features are added. The customer support is good and always available for assistance Review collected by and hosted on G2.com.

What do you dislike about OPNsense®?

Currently, we are not facing any challenges. everything is going well Review collected by and hosted on G2.com.