Lanbench [new] Info

The controller spawns worker goroutines/threads. Each worker:

The tool is most suitable for IT professionals performing site surveys, advanced home users diagnosing performance issues, and anyone needing repeatable, comparable network throughput measurements. Those requiring UDP testing, cross-platform support, or more advanced features should consider iPerf3 or other alternatives. However, for straightforward TCP benchmarking on Windows, LANBench continues to serve as a reliable choice.

Once the test finishes, you’ll see your average throughput (usually in Mbps or Gbps). Gigabit Ethernet: You should ideally see speeds near 900–950 Mbps LANBench

Run the server on the target machine ( LANBench.exe -s ) and the client on another ( LANBench.exe -c <server_ip> ). Default settings are fine for most checks, but for real-world TCP throughput, increase test time to 30+ seconds.

Stop guessing. Start benchmarking. Run LANBench today. The controller spawns worker goroutines/threads

Developed by Zach Saw and engineered on the Winsock 2.2 API , this lightweight tool measures Local Area Network (LAN) throughput by utilizing an optimized multithreaded architecture. It bypasses typical system bottlenecks, such as slow read/write speeds of storage drives, by generating and sending synthetic traffic entirely within system memory (RAM).

: You can specify packet sizes, test duration, and connection counts. Default settings are fine for most checks, but

It is a portable application, meaning no complex installation processes, making it easy to run on various machines.

LANBench may be small in size (approximately 1.9 MB), but it packs a punch for network diagnostics:

The mean throughput recorded over the test duration.