Click the "Select File" button above, and choose your KGB file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert KGB to another file type
To convert KGB Archives to another format, you need KGB Archiver or other Compressed software.
Convert a file to KGB
To convert other file formats to the "Compressed Archive File" file type, you need software like KGB Archiver or a similar tool.
About KGB files
The .KGB file extension is a highly compressed archive format created by the KGB Archiver software. Developed by Tomasz Pawlak, it uses the PAQ6 compression algorithm to achieve incredibly small file sizes compared to standard archives. While impressive on paper, this format has severe real-world limitations. Extracting a .KGB file requires massive CPU processing power and memory, often taking hours to decompress even moderately sized files. Furthermore, the software has been abandoned since 2006, meaning modern operating systems struggle to run it natively without compatibility workarounds. Standard extraction tools like WinRAR or 7-Zip do not natively support the format. To make the stored files usable, you should convert the archive to widespread formats like ZIP or 7Z. This prevents future access issues and ensures compatibility across all modern devices. Because the format is proprietary, heavily encoded, and outdated, standard online converters often fail to process it.
Convert.Guru analyzes your KGB file, detects the exact format, and lets you read the text inside.
If you want to convert KGB file to ZIP, RAR, 7Z, TAR, GZ, BZ2, XZ, LZMA, CAB, ACE, ARJ or LHA, you can use KGB Archiver or similar software from the "High-Compression Data Archive" category. In the File menu, look for Save As… or Export….
To convert XXE, 7Z, Z, PAK, LHA, DEB, UUE, TAR, LZH, ZIP, PKG or RAR files to KGB, try KGB Archiver or another comparable tool in the "High-Compression Data Archive" category.
The KGB 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 KGB converter.