Monitor and control outgoing network connections on macOS with LuLu, a free, open-source firewall.
KnockKnock vs OPNsense
How do KnockKnock and OPNsense compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | KnockKnock | OPNsense |
|---|---|---|
| What it is | Check which software is persistently installed on a Mac with KnockKnock, a tool for inspecting startup items. | OPNsense provides open-source firewall and routing software, with project documentation and support information on its site. |
| Website | ||
| Type | App | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | macOS | Web |
| Open source | Not stated | Not stated |
| Language | — | English |
| Alternatives |
Other options to consider
Sites similar to both KnockKnock and OPNsense.
Tunnelblick is free, open-source macOS software for controlling OpenVPN connections, with downloads and support information on its site.
Check file origin and cryptographic signing details from Finder with this macOS utility.
BlockBlock monitors for malware that installs itself persistently to run automatically after a restart or login.
OnionHop routes desktop traffic through Tor, with proxy and system-wide VPN modes, bridges, split tunneling, and a kill switch.
The MailTrackerBlocker extension for macOS Apple Mail blocks email trackers, read receipts, and tracking pixels.






