About This Site
A clean, fast, ad-free resource for PS1 BIOS files and emulation guides.
1 What is ps1bios.download?
PS1 BIOS Download is a free resource for PlayStation 1 BIOS files used in emulation. We provide direct downloads of all major PS1 BIOS versions — USA, Japan, and Europe — along with setup guides for popular emulators like ePSXe, RetroArch, and DuckStation.
The site is designed to be fast, minimal, and completely ad-free. No pop-ups, no redirects, no account required — just the files you need.
2 What are PS1 BIOS files?
The PlayStation 1 BIOS (Basic Input/Output System) is firmware that was embedded in every original PlayStation console. It handles system initialization, boot sequences, memory card management, and CD-ROM reading when booting games.
PS1 emulators like ePSXe and DuckStation require this BIOS file to function correctly — it allows them to accurately replicate the original hardware behavior. The BIOS file is a 512 KB .BIN file that is specific to the console's region (USA, Japan, Europe).
Available BIOS Files
SCPH1001.BIN USA · v2.2 · Most compatible — recommended SCPH5501.BIN USA · v3.0 · RetroArch, DuckStation SCPH7001.BIN USA · v4.1 · Latest USA revision SCPH5500.BIN Japan · v3.0 · NTSC-J games SCPH5502.BIN Europe · v3.0 · PAL games Legal Notice
PS1 BIOS files are provided for emulation and preservation purposes only. You should own an original PlayStation console to legally use these BIOS files. This site is not affiliated with or endorsed by Sony Interactive Entertainment. PlayStation is a registered trademark of Sony Interactive Entertainment LLC.