Test Files (Zero Disk)
Download generated files or upload real files to test throughput. 100% in-memory.
Download Test Files
Click to download a file generated dynamically by the server. These files exist only in RAM and are discarded instantly by your browser once completed.
Upload Test File
Select or drop a file
Choose any large file to test your upload speed. The file is piped to /dev/null and never saved to the server.