What is a .BPS file?
BPS is a modern ROM-patch format that fixes the size limits of older IPS patches.
- Did you know
- BPS improved on IPS with checksums and support for large ROMs.
- BPS - the “beat Patching System” - was created by emulator author byuu (Near) as a successor to the older IPS and UPS patch formats.
- Unlike IPS, a BPS patch uses delta encoding so it can describe inserted or moved data rather than degrading to storing the whole modified file.
- What Analyser reads
- Inspect game ROMs, patches and engine assets: iNES/NES2.0, Game Boy/Color/Advance, SNES, Nintendo DS/DSi, Nintendo 64, and Sega Genesis ROM headers (title, mapper, region, checksum); IPS/BPS/UPS/PPF patches; Doom WAD lumps; Minecraft NBT/schematics and Bedrock bundles; Aseprite sprites; Godot .pck; Quake/id Tech PAK/PK3; Source BSP/VPK/VTF/VMT; KTX/KTX2 textures; Tiled maps; LÖVE games; PICO-8 carts - plus MPQ, 3DS/Switch and Ren’Py/RPG Maker identification.
- Depth of analysis
- .BPS is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .BPS file
- Drag a .BPS file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.