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Application firewalls

Show and control which apps on a computer or phone may connect to the network.

Im Vergleich

Application firewalls
ToolSterneLizenzBedingungenSelbst hostbarSpracheNeuestes ReleaseLetzter Push
OpenSnitch14kGPL-3.0Open SourceNeinPythonv1.8.02026-07-26
Portmaster14kGPL-3.0Open SourceNeinGov2.2.32026-10-06
LuLu13kGPL-3.0Open SourceNeinObjective-Cv4.5.12026-10-04
simplewall9.1kGPL-3.0Open SourceNeinCv.3.8.72026-10-01
Rethink DNS + Firewall5.5kApache-2.0Open SourceNeinKotlinv0.5.72026-09-28
Blokada3.3kMPL-2.0Open SourceNeinDartandroid.v5.23.2.12026-10-06
TrackerControl2.7kGPL-3.0Open SourceNeinJava20260805012026-10-06

7 Tools

OpenSnitch

OpenSnitch is a GNU/Linux interactive application firewall inspired by Little Snitch.

Sprache
Python
Lizenz
GPL-3.0
Sterne
14k
Neuestes Release
v1.8.0
Letzter Push
2026-07-26
Portmaster

🏔 Love Freedom - ❌ Block Mass Surveillance

Sprache
Go
Lizenz
GPL-3.0
Sterne
14k
Neuestes Release
v2.2.3
Letzter Push
2026-10-06
simplewall

Simple tool to configure Windows Filtering Platform (WFP) which can configure network activity on your computer.

Sprache
C
Lizenz
GPL-3.0
Sterne
9.1k
Neuestes Release
v.3.8.7
Letzter Push
2026-10-01
Rethink DNS + Firewall

DNS over HTTPS / DNS over Tor / DNSCrypt client, WireGuard proxifier, firewall, and connection tracker for Android.

Sprache
Kotlin
Lizenz
Apache-2.0
Sterne
5.5k
Neuestes Release
v0.5.7
Letzter Push
2026-09-28

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