The program can be freely (re)distributed, as long as Read our broadband tweaking articles, the Optimizer FAQ,Īnd/or visit our Forums.

If you need help with the program, check the TCP Optimizer documentation, Internet connection type, from dialup to Gigabit+ :) It is completely free, works with most Windows versions from XP to Windows 11, requires no installation, and has been downloaded over 10 Million times over the years. The TCP Optimizer is targeted towards broadband internet connections, however it can be helpful with tuning any Latency over multiple hosts, and finding the largest possible packet size (MTU). The program works with all current versions of Windows, and includes additional tools, such as testing average

It provides for easy tuning ofĪll related TCP/IP parameters, such as MTU, RWIN, and even advanced ones like QoS and ToS/Diffserv prioritization. The tool uses advanced algorithms, and theīandwidth*delay product to find the best TCP Window for your specific connection speed. Making it easy to tune your system to the type of Internet connection used. The program can aid both the novice and the advanced user in tweaking related TCP/IP parameters in Windows,

There is no installation required, just download and run as administrator. The TCP Optimizer is a free, easy Windows program that provides an intuitive interface for tuning and optimizing

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