Click the "Select File" button above, and choose your BMZ file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert BMZ to another file type
To convert BMZ Archives to another format, you need Portal or other Compressed software.
Convert a file to BMZ
To convert other file formats to the "Application Archive" file type, you need software like Portal or a similar tool.
About BMZ files
A .BMZ file typically functions as an application-specific compressed archive or a compressed bitmap image. The most common use cases include Bonus Map Zip files for Valve games like Portal, project archives for RELUX lighting design software, splash screen bitmaps for MoTeC display loggers, and firmware updates for Sony BRAVIA televisions.
Users often need to convert or extract .BMZ files because the format is proprietary and restricted. These files usually require a heavy installation of the original game or specialized commercial software to open. Standard web browsers and default OS tools cannot read them directly. Furthermore, sharing a .BMZ file with someone who does not have the target software installed is useless.
We recommend converting or extracting .BMZ files to standard ZIP archives, or pulling out the internal PNG or JPG image files. Be aware that extracting the raw files will lose the interactive mapping or specialized configurations used by the parent software.
This file format is difficult to open or convert directly because it acts as an enclosed container. Standard online converters fail to process it because they lack the specific parsing logic for the application's internal file tree. Since our analysis often detects a standard ZIP structure or embedded bitmap under the hood, viewing the internal text or extracting the files may still be possible without the original software.
Convert.Guru analyzes your BMZ file, detects the exact format, and lets you read the text inside.
If you want to convert BMZ file to EXE, ISO, BIN, CUE, PAK, WAD, PK3, PK4, BSP, MAP, SAV or DAT, you can use Portal or similar software from the "Compressed Game Archive" category. In the File menu, look for Save As… or Export….
To convert MOD, BIN, CFG, SCX, DAT, MPQ, LOG, CUE, INI, EXE, SCM or ISO files to BMZ, try Portal or another comparable tool in the "Compressed Game Archive" category.
The BMZ Converter Story
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 BMZ converter.