netclamp.com

What It Is

NetClamp is an per-application network firewall and bandwidth manager for Windows 10/11, positioned similarly to NetLimiter. Users can target a specific .exe to block its inbound/outbound connections, and can also set upload/download speed limits and hourly/daily traffic quotas per process. Its implementation focuses on a custom Windows Filtering Platform kernel driver rather than a user-space proxy. Note that the article clearly states it is still in pre-release, and a public installer is not yet available.

Core Features and Deployment

In terms of protection model, NetClamp is more about local ingress/egress control and bandwidth management than a traditional enterprise perimeter firewall or EDR. Rules can be applied at the kernel level; the text says WFP filters take effect in around 50ms and can persist after reboots and BFE bounces. Deployment is via local installation on Windows, with a planned single Inno Setup installer to deliver the service, tray app, driver, and CLI. The management interface is an embedded Web UI at localhost:9845, protected by local token authentication.

Management, Alerts, and Integrations

The management experience is built around a system tray app and SPA: the tray icon shows upload/download load and turns red when throttling is active; the dashboard lets users view per-application speeds and apply one-click rate limits. The SPA can display rules, history, and alerts. Integration support is relatively strong, with a local REST API, gRPC API, and CLI, making it suitable for scripted management. On compliance and certification, only WHQL attestation and Authenticode signing are mentioned as being in progress; there is no sign of enterprise-grade compliance certification yet.

Pricing, Pros, and Cons

Pricing is straightforward: the free tier supports 3 rule/quota entities without feature restrictions. Each $10 purchase gets 1 credit, permanently adding 10 entities. There is no subscription or auto-renewal; credits can be stacked and transferred between machines, and activated credits can be used offline long-term. Its strengths are fine-grained control, a complete API, and suitability for offline hosts. The drawbacks are also clear: it is closed-source, pre-release, has no public installer yet, driver certification and signing are still pending, and production readiness remains to be proven.

Who It’s For and Access from China

NetClamp is suitable for individuals or technical users who want to control network behavior for games, downloaders, sync tools, or development/test processes on a single Windows machine. It may also fit operations scenarios that need local API-based automation. The article does not specify access or payment availability from China. Payments are handled by Lemon Squeezy, so domestic bank card support and network experience in China are uncertain. Alternatives include NetLimiter, Windows Firewall, simplewall, GlassWire, Portmaster, and others.