Browser tech like WebAssembly isn't fast enough yet for PS3's 7-core architecture. Safety: Stick to verified projects like RPCS3 on GitHub .
If you want a true emulation experience with the ability to play your own game backups, using a desktop application is currently the only viable method.
Websites often exist that simulate the look and feel of the PS3 interface. While they look authentic, they are essentially interactive web pages that cannot actually "boot" a .pkg or .iso game file.
The world of PS3 emulation is constantly evolving, with new emulators and improvements emerging regularly. As browser technology advances and emulator development continues, we can expect to see: