Extract text from B64 files
To convert your B64 file to another format, you need 7-Zip or other Encoded software.
To convert other file formats to the "Binary-to-Text Encoding" file type, you need software like 7-Zip or a similar tool.
A .b64 file is a text document containing binary data converted into ASCII characters using Base64 encoding. This format is essential for transmitting complex files - such as images, executables, or PDF documents - over text-only protocols like email (MIME) or XML data streams. A significant portion of these files (approx. 30%) are generated by the AFIP SICORE system used for tax purposes in Argentina, while others may be logs from Volkswagen Group ODIS software or simple email attachments.
The primary disadvantage of the .b64 format is its inaccessibility; it functions as a sealed envelope. You cannot double-click to view the image or read the document inside because the data is obfuscated into a long string of alphanumeric characters. Furthermore, this encoding increases the file size by roughly 33%, wasting storage space. Users often struggle to identify what kind of file is hidden inside - whether it is a JPG, ZIP, or DOCX - without specialized decoding tools.
To make the file usable, it must be converted (decoded) back to its original binary format. For document archival, convert to PDF. For graphics, decode to JPG or PNG. For compressed data, restore it to ZIP.
Convert.Guru analyzes your B64 file, detects the exact format, and lets you read the text inside.
Users also converted TXT, PNG, PEM, ZOO, A01, A00, IMAGE, FILE, TEXT and PDF files.
If you want to convert B64 file to IMAGE, FILE, TEXT, PDF, ZIP, RAR, 7Z, TAR, GZ, BZ2, XZ or LZMA, you can use 7-Zip or similar software from the "Base64 Encoded Data" 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 B64, try 7-Zip or another comparable tool in the "Base64 Encoded Data" 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 B64 converter.