What is a .Bundle file?
A .bundle is a Unity AssetBundle of game content loaded on demand.
- Did you know
- AssetBundles let a Unity game download extra content after it ships.
- AssetBundles can be built with LZMA or chunked LZ4 compression, with LZ4 letting the engine decompress only the 128 KB chunks it actually needs.
- The container uses Unity’s “UnityFS” layout, an uncompressed header followed by an optionally compressed body of virtual asset files.
- What Analyser reads
- Identify and read more game and emulator files: Unity asset bundles, Unreal cooked assets, CISO/CHD disc images, FMOD/Wwise sound banks, Spine skeletons and atlases, GameMaker/LDtk/TIC-80 projects, Minecraft Anvil regions, Warcraft III maps, Ren Py and RPG Maker data, extra console ROMs (Atari, PC Engine, Master System/Game Gear, WonderSwan, 3DS homebrew), xdelta/Basis patches and emulator saves and movies.
- Depth of analysis
- .Bundle 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 .Bundle file
- Drag a .Bundle 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.