Firewalls

All apps in Firewalls category. Use the filters below to narrow down your search.

Portmaster
136 likes
Portmaster is a free and open-source privacy suite that puts you back in charge of your computer.
Ad Blocker
Freemium • Open Source
Windows
Linux
License model
Freemium • Open Source
Application types
Ad Blocker
Firewall
Country of Origin
Germany
EU
Platforms
Windows
Linux
+3
Properties
Privacy focused
Features
Network Tools
Application Firewall
Block Trackers
Ad-free
No Tracking
No registration required
Dark Mode
DNS over HTTPS
Spam Filter
Built-in VPN
Website Monitoring
Dns
Best alternatives are AdGuardandNextDNS30 alternatives
AdGuard
255 likes
AdGuard is the best way to get rid of intrusive ads and online tracking, and to protect your computer from malware. Make your web surfing faster, safer and more comfortable with AdGuard!.
Ad Blocker
Freemium • Open Source
Mac
Windows
Android
iPhone
Chrome OS
Android Tablet
iPad
Vivaldi
Google Chrome
Safari
Yandex Browser
Opera
Mozilla Firefox
License model
Freemium • Open Source
Application types
Ad Blocker
Privacy Tool
Country of Origin
Cyprus
EU
Platforms
Mac
Windows
Android
iPhone
Chrome OS
Android Tablet
iPad
Vivaldi
Google Chrome
Safari
Yandex Browser
Opera
Mozilla Firefox
+4
Properties
Privacy focused
Lightweight
Features
Built-in Ad-blocker
DNS over HTTPS
Pop up blocker
DNS-over-TLS
Custom DNS
Block Trackers
Dark Mode
No Logs
No Tracking
Ad-free
No registration required
Anonymous Proxy
Best alternatives are uBlock Origin124 alternatives
simplewall
183 likes
Simple tool to configure Windows Filtering Platform (WFP) which can configure network activity on your computer.
Firewall
Free • Open Source
Windows
License model
Free • Open Source
Application types
Firewall
Network Monitor
Country of Origin
Russia
Platforms
Windows
+2
Properties
Lightweight
Privacy focused
Features
Ad-free
Portable
Built-in Firewall
Outbound firewall
No registration required
No Tracking
Block Trackers
Built-in timer
Dark Mode
Works Offline
Best alternatives are PortmasterandPi-hole33 alternatives
RethinkDNS
43 likes
An OpenSnitch-inspired firewall and network monitor + a pi-hole-inspired DNS over HTTPS client with blocklists.
Ad Blocker
Free • Open Source
Online
Android
Android Tablet
F-Droid
License model
Free • Open Source
Application types
Ad Blocker
Firewall
Country of Origin
United States
Platforms
Online
Android
Android Tablet
F-Droid
Properties
Privacy focused
Lightweight
Features
No Root Required
Block Trackers
DNS over HTTPS
Ad-free
Dns
Bypass Censorship
Dark Mode
No registration required
No Tracking
No Logs
Best alternatives are PortmasterandAdGuard45 alternatives
GlassWire
144 likes
Visualize network activity in detail, get notified when new apps access the network, look out for malware, and block badly behaving apps.
Network Monitor
Freemium • Proprietary
Windows
Android
Android Tablet
License model
Freemium • Proprietary
Application types
Network Monitor
Firewall
Country of Origin
United States
Platforms
Windows
Android
Android Tablet
+9
GlassWire Features
Network activity
Block apps
Built-in Firewall
Graphical component
Graphs
Traffic Monitoring
Push subscriptions
Network Tools
Best alternatives are simplewallandPortmaster63 alternatives
Ad
Norton AntiVirus
Offers real-time defense against malware, spyware, ransomware, and phishing with features like smart firewall, password manager, and AI-driven threat analysis.

Learn More
Fort Firewall
28 likes
Simple firewall for MS Windows.
Firewall
Free • Open Source
Windows
License model
Free • Open Source
Application types
Firewall
Network Monitor
Country of Origin
Uzbekistan
Platforms
Windows
Properties
Lightweight
Privacy focused
Features
No registration required
Ad-free
Portable
Dark Mode
No Tracking
Traffic shaping
Auto Update
Block Trackers
Stats
Scheduling
Best alternatives are Portmasterandsimplewall33 alternatives
OPNsense
58 likes
OPNsense includes most of the features available in expensive commercial firewalls, and more in many cases. It brings the rich feature set of commercial offerings with the benefits of open and verifiable sources.
Firewall
Free • Open Source
Self-Hosted
License model
Free • Open Source
Application types
Firewall
Router Custom Firmware
Country of Origin
Netherlands
EU
Platforms
Self-Hosted
+4
Properties
Privacy focused
Lightweight
Features
Encrypted VPN
Two-factor Authentication
Load balancing
Geofencing
No registration required
Ad-free
Dark Mode
Web filter
Best alternatives are pfSenseandMikroTik RouterOS17 alternatives
Little Snitch
134 likes
A firewall protects your computer against unwanted guests from the Internet. But who protects your private data from being sent out? Little Snitch does!
Firewall
Paid • Proprietary
Mac
License model
Paid • Proprietary
Application types
Firewall
Network Monitor
Country of Origin
Austria
EU
Platforms
Mac
Properties
Privacy focused
Features
Ad-free
No registration required
Rule based
Traffic Monitoring
Traffic Analysis
Custom rules
Application Firewall
Usage statistics
Real-time traffic
Best alternatives are Portmaster38 alternatives
NetLimiter
90 likes
An advanced Windows tool for internet traffic control and monitoring. Set speed limits for apps and connections, with real-time and long-term stats.
Firewall
Paid • Proprietary
Windows
License model
Paid • Proprietary
Application types
Firewall
Network Monitor
Platforms
Windows
Top NetLimiter Features
Bandwidth limiting
Net Limiting
Filtering
Quotas support
Custom rules
Application Blocker
Traffic Monitoring
Ad-free
Priorities
Built-in Firewall
Dark Mode
Best alternatives are PortmasterandNetBalancer25 alternatives
LuLu by Objective-See
51 likes
LuLu is the free, shared-source macOS firewall that aims to block unknown outgoing connections unless explicitly approved by the user.
Firewall
Free • Open Source
Mac
License model
Free • Open Source
Application types
Firewall
Network Monitor
Country of Origin
United States
Platforms
Mac
+2
LuLu by Objective-See Features
Outbound firewall
Low resource footprint
Source code history
Best alternatives are PortmasterandLittle Snitch13 alternatives
NetGuard
34 likes
NetGuard provides simple and advanced ways to block access to the internet - no root required.
Firewall
Freemium • Open Source
Android
Android Tablet
F-Droid
License model
Freemium • Open Source
Application types
Firewall
Ad Blocker
Country of Origin
Netherlands
EU
Platforms
Android
Android Tablet
F-Droid
Properties
Lightweight
Privacy focused
Features
No Root Required
Website blocking
Dark Mode
No registration required
No Tracking
Ad-free
Best alternatives are AdGuardandsimplewall35 alternatives
PeerBlock
250 likes
PeerBlock lets you control who your computer "talks to" on the Internet. By selecting appropriate lists of "known bad" computers, you can block communication with advertising or spyware oriented servers, computers monitoring your p2p activities, computers...
Firewall
Free • Open Source
Windows
PortableApps.com
License model
Free • Open Source
Application type
Firewall
Country of Origin
United States
Platforms
Windows
PortableApps.com
Discontinued
The project seems to be no longer developed. Last version, 1.2, released in January 2014, can be still downloaded from the official website.
PeerBlock Features
Portable
Outbound firewall
Peer-To-Peer
Built-in Firewall
Network Tools
Best alternatives are simplewallandPeerGuardian5 alternatives
BiniSoft Windows Firewall Control
69 likes
A powerful tool which extends the functionality of Windows Firewall and provides new extra features which makes Windows Firewall better.
Firewall
Free • Proprietary
Windows
License model
Free • Proprietary
Application types
Firewall
Network Monitor
Country of Origin
United States
Platforms
Windows
+1
Properties
Lightweight
Features
Portable
No registration required
Application Blocker
Best alternatives are simplewallandGlassWire21 alternatives
pfSense
103 likes
pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more.
Firewall
Freemium • Open Source
BSD
License model
Freemium • Open Source
Application types
Firewall
VPN Service
Country of Origin
United States
Platforms
BSD
+2
pfSense Features
OpenVPN
Integrated Virus scanner
Load balancing
DHCP Server
No registration required
Spam Filter
LDAP support
Zabbix monitoring
RADIUS Services
Content Filtering
Best alternatives are OPNsense29 alternatives
OpenSnitch
38 likes
OpenSnitch is a GNU/Linux application firewall.
Firewall
Free • Open Source
Linux
License model
Free • Open Source
Application types
Firewall
Network Monitor
Country of Origin
Italy
EU
Platforms
Linux
Properties
Lightweight
Privacy focused
Features
Application Firewall
Network Filtering
Ad-free
No registration required
Block Trackers
No Tracking
Best alternatives are Portmasterandsimplewall32 alternatives

Portmaster

License model

Application types

Country of Origin

Platforms

Properties

Features

AdGuard

License model

Application types

Country of Origin

Platforms

Properties

Features

simplewall

License model

Application types

Country of Origin

Platforms

Properties

Features

RethinkDNS

License model

Application types

Country of Origin

Platforms

Properties

Features

GlassWire

License model

Application types

Country of Origin

Platforms

GlassWire Features

Fort Firewall

License model

Application types

Country of Origin

Platforms

Properties

Features

OPNsense

License model

Application types

Country of Origin

Platforms

Properties

Features

Little Snitch

License model

Application types

Country of Origin

Platforms

Properties

Features

NetLimiter

License model

Application types

Platforms

Top NetLimiter Features

LuLu by Objective-See

License model

Application types

Country of Origin

Platforms

LuLu by Objective-See Features

NetGuard

License model

Application types

Country of Origin

Platforms

Properties

Features

PeerBlock

License model

Application type

Country of Origin

Platforms

PeerBlock Features

BiniSoft Windows Firewall Control