What is a .Z64 file?
Z64 is a Nintendo 64 game ROM in big-endian byte order, run on emulators.
- Did you know
- The Nintendo 64, launched in 1996, was the last major console to use cartridges.
- Despite naming the format, .z64 actually stores the ROM in the Nintendo 64’s native big-endian byte order, while rival dumps from the Doctor V64 came out byte-swapped.
- The extension comes from the Z64 backup unit by Interesting Devices, one of several copier cartridges whose differing byte orders spawned the .z64, .v64 and .n64 variants.
- 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
- .Z64 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 .Z64 file
- Drag a .Z64 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.