IrfanView is free for use. For commercial use (for-profit companies, government agencies, etc.), the author requests a registration/donation as well. However, even in a corporate environment, the software does not enforce a lockout. It is an honor system.
The program is free. Why steal a “thank you” token? You wouldn’t steal a tip jar from a coffee shop that gives away free coffee. irfanview registration code
Pirated versions or cracked executables can be unstable and may crash when handling large image files. 4. How to Enter the Code IrfanView is free for use