1
OnionHop
onionhop.deAlso covers privacy · same kind of website
OnionHop routes desktop traffic through Tor, with proxy and system-wide VPN modes, bridges, split tunneling, and a kill switch.
Alternatives
The Best OPNsense Alternatives in 2026
24 alternatives2 free · 2 open source
Looking for something like OPNsense? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 2 are free or have a free plan and 2 are open source.
OPNsense provides open-source firewall and routing software, with project documentation and support information on its site.
Top picks at a glance
First suggestionOnionHopOnionHop routes desktop traffic through Tor, with proxy and…Free or freemium optionStayStay for Safari lists userscripts and ad blocking among its…Open source optionMistbornMistborn provides a self-hosted virtual private cloud with…Another optionLockdown PrivacyLockdown Privacy offers an open-source firewall for…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | OnionHop | — | Not stated | Linux, macOS, Web |
| 2 | Lockdown Privacy | — | Not stated | iOS, Web |
| 3 | LuLu | — | Not stated | macOS, Web |
| 4 | ClashMac | — | Not stated | macOS |
| 5 | Mistborn | — | Yes | Web |
| 6 | Stay | Freemium | Not stated | iOS, Web |
| 7 | gufw | — | Yes | Linux |
| 8 | KnockKnock | — | Not stated | macOS, Web |
| 9 | Tunnelblick | — | Not stated | macOS, Web |
| 10 | Linux Hardening | — | Not stated | Linux, Web |
All OPNsense alternatives
2
Lockdown Privacy
lockdownprivacy.comAlso covers privacy · same kind of website
Lockdown Privacy offers an open-source firewall for blocking trackers, ads, and badware in apps on iPhone and iPad.
3
LuLu
objective-see.org/products/lulu.htmlAlso covers privacy · same kind of website
Monitor and control outgoing network connections on macOS with LuLu, a free, open-source firewall.
4
ClashMac
github.com/666OS/ClashMacAlso covers privacy
Manage proxy connections on macOS with ClashMac, a native client that includes traffic routing views.
5
Also covers privacy · open source
Mistborn provides a self-hosted virtual private cloud with a web interface, firewall, WireGuard VPN, Pi-hole, DNSCrypt, and IP filtering.
6
Also covers privacy · same kind of website · free plan
Stay for Safari lists userscripts and ad blocking among its features, with ratings and reviews available on the App Store.
7
Also covers privacy · open source
Configure Ubuntu’s Uncomplicated Firewall through Gufw, a graphical firewall interface.
8
KnockKnock
objective-see.org/products/knockknock.htmlAlso covers privacy · same kind of website
Check which software is persistently installed on a Mac with KnockKnock, a tool for inspecting startup items.
9
Tunnelblick
tunnelblick.netAlso covers privacy · same kind of website
Tunnelblick is free, open-source macOS software for controlling OpenVPN connections, with downloads and support information on its site.
10
Linux Hardening
madaidans-insecurities.github.io/guides/linux-…Also covers privacy · same kind of website
Follow this Linux hardening guide for steps to improve the security of a Linux system.
11
Tor Browser
torproject.orgAlso covers privacy · same kind of website
The Tor Project promotes online anonymity and tools to defend against tracking, surveillance, and censorship.
12
ShuffleStacks
shufflecake.netAlso covers privacy · same kind of website
Shufflecake is a Linux tool for creating multiple hidden filesystems with plausible deniability.
13
MailTrackerBlocker
apparition47.github.io/MailTrackerBlockerAlso covers privacy · same kind of website
The MailTrackerBlocker extension for macOS Apple Mail blocks email trackers, read receipts, and tracking pixels.
14
Securely Wipe Disk
wiki.archlinux.org/title/Securely_wipe_diskAlso covers privacy · same kind of website
The ArchWiki guide covers securely wiping a disk, with related security articles and Arch Linux resources on the wiki.
15
What's Your Sign?
objective-see.org/products/whatsyoursign.htmlAlso covers privacy · same kind of website
Check file origin and cryptographic signing details from Finder with this macOS utility.
16
WhoAmI Project
owerdogan.github.io/whoami-projectAlso covers privacy · same kind of website
Use the WhoAmI Project to configure enhanced privacy and anonymity for Debian- or Arch-based Linux distributions.
17
BlockBlock
objective-see.org/products/blockblock.htmlAlso covers privacy · same kind of website
BlockBlock monitors for malware that installs itself persistently to run automatically after a restart or login.
18
Qubes
qubes-os.orgAlso covers privacy · same kind of website
Qubes OS is a free, open-source operating system for personal computers that uses compartmentalization as a security approach.
19
SSD Memory Cell Clearing
wiki.archlinux.org/title/Solid_state_drive/Mem…Also covers privacy · same kind of website
Consult ArchWiki guidance on clearing data from solid-state drives and memory cells.
20
Collision
flathub.org/apps/dev.geopjr.CollisionAlso covers privacy · same kind of website
Collision checks file hashes on Linux, with installation available through Flathub.
21
OverSight
objective-see.org/products/oversight.htmlAlso covers privacy · same kind of website
Get alerts when an app accesses a Mac microphone or camera with OverSight.
22
Also covers privacy · same kind of website · free
Tomb makes strong encryption easier for everyday use by creating locked folders that can be transported and hidden in a filesystem.
23
gocryptfs
nuetzlich.net/gocryptfsAlso covers privacy · same kind of website
gocryptfs provides file-based encryption through a mountable FUSE filesystem.
24
Telemetry.md
gist.github.com/ave9858/a2153957afb053f7d0e7ff…Also covers privacy · same kind of website
Read the telemetry disclosure and settings for the Telemetry.md GitHub Gist.
No alternatives match this filter.
Alternatives to similar tools
Stay24 alternativesLinux Hardening24 alternativesCollision24 alternativesLockdown Privacy24 alternativesMailTrackerBlocker24 alternativesSecurely Wipe Disk24 alternatives
What is the best alternative to OPNsense?
Based on features, tags and platforms, the closest alternatives to OPNsense are OnionHop, Lockdown Privacy, and LuLu.
Is there a free alternative to OPNsense?
Yes. Stay and Tomb are free or offer a free plan.
Are there open-source alternatives to OPNsense?
Yes: Mistborn and gufw.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative