Extract text from CKB files
To convert your CKB file to another format, you need CRIWARE or other Game software.
To convert other file formats to the "Audio Container" file type, you need software like CRIWARE or a similar tool.
A .CKB file is most frequently a Game Audio Voice Bank, a proprietary container format used by game audio middleware solutions like CRI Middleware (specifically the ADX2 system) and Cricket Technology. These files serve as compressed archives that store thousands of short audio clips - such as character dialogue, sound effects, or UI chimes - inside a single file to optimize game performance and reduce load times.
For gamers, modders, and data miners, the .CKB format presents a significant barrier: it acts as a "black box" that standard media players like VLC Media Player cannot open, and audio editors like Audacity cannot natively import. The audio data inside is often encoded in specialized formats (like ADX or HCA) to save space, meaning you cannot simply rename the file to MP3 or WAV to play it. To use these assets for video editing, archiving, or listening, you must convert the bank into standard, accessible audio formats.
A secondary but notable use for the .CKB extension is the Character Kit Binary format generated by Hero Forge, a platform for designing custom 3D miniatures. In this context, the file contains the parametric data definitions for a 3D character model - essentially the instructions for how to build the model - rather than the 3D geometry itself. Users frequently encounter friction here thinking they have a 3D mesh ready for printing, only to find the file is incompatible with slicers like UltiMaker Cura or modeling software like Blender. For 3D printing workflows, these files usually need to be re-exported or converted to STL or OBJ.
Convert.Guru analyzes your CKB file, detects the exact format, and lets you read the text inside.
Users also converted MRB, BPC and EBX files.
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 CKB converter.