Simplewall
Configure network activity rules through Windows Filtering Platform with Simplewall.
About Simplewall
Simplewall is a Windows tool that configures network activity through Windows Filtering Platform (WFP). It provides a rules editor with global and per-application rules, an internal blocklist for Windows telemetry, and logging for dropped and allowed packets.
It is described as for advanced users and requires administrator rights. It does not interact with Windows Firewall. It runs on Windows 7 SP1 and higher, offers permanent rules and temporary rules that reset after reboot, and configured filters remain active after uninstall unless disabled.
Key features
- Rules editor with global and per-application custom rules
- Internal blocklist to block Windows telemetry
- Dropped-packet notifications and logging to file
- Allowed-packet logging to file on Windows 8 and later
- Support for WSL, Windows Store apps, and Windows services
- IPv6 support
Best for: Advanced Windows users who want to define per-application network rules through WFP.
Good for
- Free and open source
- Less than a megabyte in size
- Available as installer or portable version
Watch out for
- Requires administrator rights to work correctly
- Described as definitely for advanced users
- Uninstall leaves filters active until manually disabled
Simplewall at a glance
- Category
- Privacy & Security › Security Tools
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Platforms
- Windows
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Simplewall FAQ
Is simplewall a control interface for Windows Firewall?
No. It does not interact with Windows Firewall and works over Windows Filtering Platform.
What happens to filters when I uninstall simplewall?
Configured filters stay alive in the system. Start simplewall and press "Disable filters" to remove them.
How do I activate portable mode?
Create "simplewall.ini" in the application folder, or move it from "%APPDATA%\Henry++\simplewall".
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