Select the platform you want to download roms or isos for free:
To emulate Switch games: Recommended Emulators: Yuzu or Ryujinx. See the full guide to download the necessary files.
To emulate PS3 games: Recommended Emulator: RPCS3, offering excellent support for PS3 games.
To emulate PS4 games: Recommended Emulator: shadPS4, a promising experimental emulator for PlayStation 4.
To emulate 3DS games: Recommended Emulator: Consider using the fork of Citra available at https://github.com/PabloMK7/citra for improved compatibility.
Be aware of the Azahar project, which aims to continue advancements in 3DS emulation.
To emulate PS2 games: Recommended Emulator: PCSX2, a highly compatible and feature-rich PS2 emulator.
BIOS files are available on emulation.gametechwiki.