What is a .UPS file?
UPS is a ROM-patch format used to distribute ROM hacks and translations.
- Did you know
- UPS patches store only the differences between the original and modified ROM.
- UPS was created in 2008 as a successor to the IPS patch format, removing IPS’s file-size limits and adding CRC32 checksums to verify the right ROM.
- A UPS patch is reversible, so the same file can both apply a change and undo it, though the later BPS format eventually overtook it on speed.
- 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
- .UPS 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 .UPS file
- Drag a .UPS 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.