OPNsense
9.4#1 in firewall softwareFree planFree planAndroidiOSWebAPI
VisitOPNsense vs SELKS
SELKS
7.2#7 in intrusion detection and prevention softwareFree planFree planWebLinuxSelf-hostedWindows
VisitWhat both publish
| Fact | OPNsense | SELKS |
|---|---|---|
| Documentation depth | Official documentation covers feature guides, API reference, architecture, security, releases, hardware, installation, virtualization, and troubleshooting. | The project wiki includes user setup, Docker and ISO installation, developer build/customization material, tutorials, Splunk documentation and older-version guides. |
| Founded | 2014 | 2014 |
| Licence | OPNsense code is released under the OSI-approved BSD 2-Clause Simplified licence, allowing modification and redistribution subject to its conditions. | SELKS is released under the GNU GPL version 3 license. |
| License | OPNsense is available under the Open Source Initiative approved 2-clause BSD license. | SELKS is free and open source under the GPL 3.0-or-later license. |
| Rating on G2 | 4.8 out of 5 from 5 reviews. | The surfaced G2 listing was for related Suricata Turnkey GUI, rated 4.0 out of 5 from 2 reviews; it was not a SELKS product profile. |
OPNsense plans
- Business Edition—
- Business Edition 3Yr—
- Community EditionFree
- OPNsense Business Edition 1yr subscription€149 a year
- OPNsense Business Edition (3Yr)€399, paid once
- OPNsense Business Edition 3Yr€399 a year
SELKS plans
- SELKSFree
Pick OPNsense if…
OPNsense suits people and organizations seeking a self-hosted firewall and routing platform with VPN, traffic monitoring, and intrusion-prevention capabilities. Its Business Edition is intended for companies, enterprises, and professionals seeking commercial features and a selective upgrade path.
Pick SELKS if…
SELKS suits practitioners, researchers, educators, students, and hobbyists exploring Suricata, as well as many small-to-medium organizations. It is not intended for enterprise deployment.