OPNsense was founded in Middelharnis, The Netherlands by Deciso B.V. in 2015 with a a small team of highly skilled professionals and open source enthusiasts. OPNsense is a fast growing community project with thousands of active installations around the globe. Our goal is to become the most widely used open source security platform in the world!

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Stay Safe & Secure

High-end protection made easy

Protect your business network and secure your connections. From the stateful inspection firewall to the inline intrusion detection & prevention system everything is included for free.Use the traffic shaper to enhance network performance and prioritise voice over ip above other traffic. Backup your configuration to the cloud automatically, no need for manual backups anymore!

School networks
Limit and share available bandwidth evenly amongst students and utilise the category based web filtering to filter unwanted traffic such as adult content and malicious websites. Its easy to setup as no additional plugins nor packages are required. Teach about security or use our development documentation to show how an Model Viewer Controller works. You and your students are invited to join the effort and OPNsense community!

Hotel & Campings
Hotels and campings usually utilise a captive portal to allow guests (paid) access to internet for a limited duration. Guests need to login using a voucher they can either buy or obtain for free at the reception. OPNsense has a build-in captive portal with voucher support and can easily create them on the fly.

Branch Offices & SOHO
Utilise the integrated site to site VPN (IPsec or SSL VPN) to create a secure network connection to and from your remote offices. Enjoy the easy configuration and online searchable documentation with simple how-to type of articles to get you started, quickly.

Remote & on the road
Even on the road OPNsense is a great asset to your business as it offers OpenVPN and IPSec VPN solution with road warrior support. The easy client exporter make configuring your OpenVPN SSL client setup a breeze.

OPNsense Solutions & Features
A stateful firewall is a firewall that keeps track of the state of network connections (such as TCP streams, UDP communication) traveling across it.
Two or more firewalls can be configured as a failover group. If one interface fails on the primary or the primary goes offline entirely, the secondary becomes active.
Traffic shaping (also known as “packet shaping”) is the control of computer network traffic in order to optimise or guarantee performance, lower latency, and/or increase usable bandwidth by delaying packets that meet certain criteria.
A caching proxy reduces bandwidth and improves response times by caching frequently-requested web pages. OPNsense also ads fine grained access control and category based webfiltering.
A Captive Portal allows you to force authentication, or redirection to a click through page for network access. This is commonly used on hot spot networks, but is also widely used in corporate networks for an additional layer of security on wireless or Internet access.
The inline IPS system of OPNsense is based on Suricata and utilises Netmap to enhance performance and minimize cpu utilisation. This deep packet inspection system is very powerful and can be used to mitigate security threats at wire speed.
A virtual private network (VPN) extends a private network across a public network, such as the Internet. It enables a computer to send and receive data across shared or public networks as if it is directly connected to the private network, while benefiting from the functionality, security and management policies of the private network.
Better safe than sorry, always keep an up to date backup of your configuration. It’s easy with OPNsense. Cloud backup supported with Google drive.
System Health offers a dynamic view on RRD data gathered by the system. It allows you to dive into different statistics that show the overall health and performance of the system over time.
Easy to use responsive design, accessible from a desktop pc, tablet and smart phone. All features offered by OPNsense are configurable through the responsive user interface.
OPNsense is equipped with a reliable and secure update mechanism to provide weekly security updates. Its plugin mechanism can be used to install additional packages and customisations.
Fully supported by Deciso B.V. with professional support for Businesses, Integrators & Resellers. And community support available from the forum, docs and irc.