is a powerful, open-source utility designed to simulate poor network conditions on Windows. By leveraging the WinDivert library, it intercepts live network packets and allows you to manually inject lag, drop packets, or tamper with data to see how applications handle instability.
Clumsy is a portable application, meaning it does not require a standard Windows installation wizard.
clumsy will choose which packets to capture by given filter, in which in can specify whether it's inbound or outbound, tcp or udp, GitHub Pages documentation clumsy makes your network condition on Windows ... - GitHub
Version 0.4 v2 functions flawlessly without hogging CPU cycles, making it ideal to run alongside heavy debugging tools. How to Safely Complete the Download clumsy 04 v2 download top
Locate clumsy.exe , right-click the file icon, and select . This privilege level is explicitly required for the background driver to hook into network socket layer protocols cleanly. Configuring Filtering Expressions
: You are not forced to break the whole computer’s connection. Clumsy lets you write simple filters. For example, you can target a specific IP address (like your mobile device when testing over Wi‑Fi), a process by its name, or ports you care about.
: When a user inputs a filter expression and initiates execution, the application tells the kernel-level driver which criteria to watch out for. is a powerful, open-source utility designed to simulate
Gamers and modders use it in controlled laboratory environments to study netcode, tick rates, and lag compensation in multiplayer titles.
Selecting Functions: Check the boxes for the effects you want to apply (e.g., Lag or Drop).
Select (Administrative privileges are required for the tool to hook into your network stack via WinDiver). Top Use Cases for Clumsy 04 v2 clumsy will choose which packets to capture by
It is a portable tool that works system-wide on any application without needing proxy setups or code changes. Protocol Support: Works with any TCP/IP-based protocol, not just HTTP. Interactive Control:
While "04 v2" typically refers to version of the software, the most stable and widely used versions recognized by the developer community are 0.3 and its subsequent updates. What is Clumsy?