Extract text from Game asset bundles (BUN)
To convert BUN bundles to another format, you need Need for Speed Modding Tools or other Game software.
To convert other file formats to the "Asset Bundle Archive" file type, you need software like Need for Speed Modding Tools or a similar tool.
A .bun file is primarily an archive bundle used by game engines and digital audio workstations. In gaming, it stores packaged assets like textures, 3D models, and audio for Electronic Arts titles (such as the Need for Speed series) or games built on Unity. In music production, it functions as a Cakewalk Audio Bundle, storing both the MIDI sequence data and the embedded RIFF audio waveforms in a single project file.
The main disadvantage of .BUN files is their proprietary and opaque nature. Game asset bundles are compiled specifically for engine performance, making them unreadable to standard archive utilities like WinRAR or 7-Zip. Users trying to mod a game face frustration because extracting the internal textures (often DDS) or meshes requires reverse-engineered community software like NFS-TexEd or NFS-Toolkit. For audio users, older Cakewalk bundles trap your multi-track recordings in a closed ecosystem that forces you to use specific legacy DAW versions just to mix or export the stems.
Drag and drop your file here to analyze and convert it - free, online, and without installing complex modding software. The best conversion target depends heavily on the file's origin. For audio bundles, convert to WAV or FLAC for lossless archiving and cross-DAW editing. For game assets, extract the contents to a standard ZIP file, or convert the internal textures directly to PNG for web use or JPG for quick previewing. Note that extracting proprietary game meshes might result in the loss of complex material definitions tied to the original engine.
Use Convert.Guru to open and convert your BUN file.
Users also converted BUNDLE, MP3, GMB, MSIXBUNDLE and BBQ files.
If you want to convert BUN file to MP3, WAV, AAC, FLAC, OGG, WMA, M4A, AIFF, OPUS, ALAC, APE or WV, you can use Need for Speed Modding Tools or similar software from the "Game Asset Archive" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to BUN, try Need for Speed Modding Tools or another comparable tool in the "Game Asset Archive" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our BUN converter.