simplewall review
Free, open-source Windows firewall control with detailed traffic rules and logging.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
simplewall is a free, open-source Windows application for configuring Windows Filtering Platform and controlling network activity. It is aimed at advanced users who want direct control over application and system traffic without a paid plan. Rules can apply globally or to individual applications, and the software supports inbound and outbound blocking. Its Windows scope covers Windows 7 SP1 and later, including 64-bit and ARM64 systems, with both installer and portable versions available.
The feature set is focused on traffic control rather than broad security-platform administration. simplewall includes an internal telemetry blocklist, blocked-packet notifications, packet logging, IPv6 support, and permanent or temporary filtering rules. It also supports Windows services, Windows Store applications, and Windows Subsystem for Linux. That combination gives users several ways to inspect and manage local network activity while keeping the product centered on Windows Filtering Platform configuration.
Its main limitation is scope. simplewall is Windows-only and does not provide the central management or integrations expected in wider enterprise deployments. Administrator rights are required, and its intended audience is advanced users rather than people looking for a fully managed firewall experience. Choose it for free, open-source control over Windows application traffic, bidirectional blocking, and local rule management. Organizations needing cross-platform coverage, centralized administration, or a broader integrated firewall environment should choose an alternative.
simplewall pros and cons
- Where it wins
- Controls inbound and outbound traffic with global and application rules
- Includes telemetry blocking, notifications, packet logging, and IPv6 support
- Supports Windows services, Store apps, WSL, and temporary or permanent rules
- Where it doesn't
- Windows-only, with no support for other platforms
- Requires administrator rights and is intended for advanced users
- Lacks central management and integrations for broader enterprise use
simplewall fact sheet, pricing and score →
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