Your network, your call.
A simple way to see what a per-app firewall does.
- 01
An app tries to connect
An unfamiliar program requests network access.
- 02
CyberWall lets you know
The connection starts blocked while you review the request.
- 03
You make the decision
Choose what happens now and whether to keep that rule.
Allow onceAllow alwaysBlock
CyberWall is a per-application firewall for Windows that helps you understand and control network access. Unknown connections are blocked by default, and interactive prompts let you allow an app once, save an allow rule, or block it. Review connection activity, manage your decisions, and keep an eye on traffic from a single place. It uses the native Windows Filtering Platform without a separate third-party kernel driver.
Take control of each connection
Choose what connects
Unknown apps start blocked. Review a prompt and allow access once, allow it always, or block it.
Keep your decisions
Save per-app rules for the software you trust and revisit them when your needs change.
Understand network activity
Inspect connection events and traffic statistics to see what your apps are doing online.
More ways CyberWall helps
- Filter the connection log by program, IP address, port, or process ID
- See upload and download speeds at a glance
- Get notified when an app first tries to use the network
- Choose a temporary permission or save a persistent per-app rule
- Unanswered prompts can be blocked automatically after a timeout
- Runs on Windows Filtering Platform without a separate kernel driver
Use Cases
By Role
Everyday Windows users
Recognize which programs ask for network access and choose whether to let them through.
Developers
Review connection attempts from tools and helper processes while working with local projects.
Privacy-minded people
Start from blocked access, then grant connectivity only to the apps you choose.
Power users
Keep per-app rules organized and inspect activity when a connection surprises you.
By Task
Review a new app
See its identity and destination in a connection prompt before choosing a temporary or lasting decision.
Revisit your rules
Update saved allow and block decisions as the software you use changes.
Investigate a connection
Filter the event log by app, address, port, or process to find the activity you need.
Check your traffic
View upload and download speeds alongside connection history.
Try CyberWall
Free for Windows 10 and 11. No account required.
Download latest🖥️ Requirements & safety
- · Windows 10 / 11, 64-bit. C# · WPF · .NET 10
- · Installer or portable
- · 🔏 “Unknown publisher” SmartScreen warning is expected (no paid certificate yet). Verify via release SHA / VirusTotal or build from source.
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