The combination of these features makes FastRawViewer a powerful and essential tool in a modern photography workflow.

Before discussing license keys, it is important to note that FastRawViewer offers a fully functional 30-day free trial. During the first run, the program will display a splash screen suggesting activation of the trial version. When an internet connection is available and FastRawViewer is not blocked by a firewall, the trial version activates automatically and nearly instantly. No private data is transferred during this process—only the program's version number and a unique, non-reversible 64-bit hash code identifying your computer are passed through the internet.