There are currently no legitimate, high-performance PS3 emulators that run directly in a web browser. Due to the PlayStation 3's complex Cell architecture, even the best local emulators require a powerful CPU and a dedicated installation.
RPCS3: A well-known PS3 emulator for PC, which has made significant strides in compatibility and performance. While not directly in a browser, its development could potentially pave the way for browser-based emulation if optimizations and technologies continue to advance. ps3 emulator on browser link
Which of those would you like?
The only real PS3 emulator is RPCS3, which: While not directly in a browser, its development
Extract the EmulatorDownload the RPCS3 zip file and extract it into a dedicated folder using a tool like 7-Zip or WinRAR. Install PS3 Firmware Open rpcs3.exe. Go to File > Install Firmware. Install PS3 Firmware Open rpcs3