GlassWire
by GlassWireGlassWire may suit people who want to review network activity, receive alerts about unusual changes, or manage app connections.
Free plan Free trial From $2.99 a month, billed yearly AndroidWebWindows
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Best Personal Firewalls 2026
Personal firewalls can regulate network access on a device. When comparing options, consider platform coverage, pricing paths, open-source code and trial access.
02
Murus
Mac Record5.5 Visit
03
Portmaster
WindowsMacLinux Record5.3 Visit
04
RethinkDNS
RethinkDNS suits Android users who want configurable DNS blocking, app-level firewall rules, and per-app network reports.
AndroidWeb Record5.1 Visit
05
AFWall+
Android Record4.9 Visit
Before you choose
Match your platform
Check your operating system before comparing tools. Look for support for Windows, macOS, Android, web or Linux.
NetGuard lists Android support. Confirm that a tool supports the device you plan to protect.
Compare free plans and trials
Compare free plans with freemium and paid models. NetLimiter offers a 28-day trial, whereas Radio Silence offers a 1-day trial.
Portmaster shows a paid tier beginning at €8 per month. Radio Silence starts at $9.
Check open-source access
For products offering open-source code, review the licence and verify the build for your platform if you plan to inspect or modify it.
Questions
Which platforms do these firewalls support?
When comparing firewalls, check for support for Windows, macOS, Android, web or Linux. NetGuard lists Android support.
Can I use a free plan?
Free plans are offered through free and freemium pricing models.
Do any listed firewalls provide open-source code?
For products offering open-source code, review the licence before inspecting or modifying it.
Which tools offer trials?
NetLimiter offers a 28-day trial, and Radio Silence offers a 1-day trial.
Are paid options listed?
Yes. Portmaster shows a paid tier beginning at €8 per month, while Radio Silence starts at $9.
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