ProcNetBlocker (Process Network Blocker) is a lightweight Windows command-line utility designed for system administrators, developers, and power users who need granular, real-time control over application network access. Stop unauthorized communication, sandbox suspicious programs, or manage bandwidth—all with a simple command.
Features
- Fine-Grained Network Control
ProcNetBlocker provides essential tools for managing your system's network interactions at the deepest level: the process. - Block Network Access by Process ID
Instantly deny all incoming and outgoing network connectivity for any specified process (by PID). - Block Network Access by EXE Path
Disable the network access for any specified executable programs (by EXE). - Unblock Network Access
Effortlessly restore full network privileges to a process or application that was previously blocked. - Status Check
- Quickly view the current network connection status for a process or application, confirming its block/unblock state.
- Standalone EXE
- Completely portable and lightweight. No installation or complex dependencies - just download and run.
- 100% Free
- ProcNetBlocker is a command line freeware tool, you can use it for free.

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