Convert Security catalog files (CAT) online for free
The converter easily converts your CAT catalogs to various formats - free and online. No Microsoft Windows or or other System software needed.
To convert other file formats to the "Security Catalog File" file type, you need software like Microsoft Windows or a similar tool.
The .CAT file extension is notoriously fragmented, primarily known as a Windows Security Catalog file. In the Windows ecosystem, these files store digital signatures (cryptographic thumbprints) for software updates, drivers, and system components to guarantee they have not been tampered with. Beyond Windows, the "Catalog" abbreviation means this extension is heavily reused. It acts as a game resource archive for developers like XSEED Games, an XML-based wargame roster for BattleScribe, a component library in AutoCAD Plant 3D, and even a plain-text Spanish cadastral property file.
The main disadvantage of the .CAT format is this extreme ambiguity. Because dozens of different programs use it for entirely different, proprietary data structures, the OS rarely knows what to do with it outside of its native environment. A Windows security catalog is a binary file unreadable to users, a game archive requires bespoke unpackers, and an Apple Secure Enclave .cat file is a locked-down PLIST. You cannot easily share or edit them across platforms, and they are frequently rejected by email clients as potential security risks.
Conversion depends entirely on the file's true internal structure. For BattleScribe catalogs, convert to XML or TXT for editing. For BrillKids educational files, the internal structure is compressed, so changing to ZIP allows extraction. For Windows security files, you can sometimes extract the certificate to CER or PEM for archiving. Drag and drop your file to analyze and convert it - free, online, and without installing software.
Use Convert.Guru to open and convert your CAT file.
Users also converted CATPART, DWG, CATDRAWING, G1A, CATPRODUCT, MP3, G2M, G3A, CXT, DAT, PDF, ZIP and SYS files.
If you want to convert CAT file to GMT, IST, EST, UTC, ET, DB, SQLITE, SQLITE3, MDB, ACCDB or DBF, you can use Microsoft Windows or similar software from the "Security Signature Catalog" category. In the File menu, look for Save As… or Export….
To convert NDF, SQLITE3, BAK, RDB, SQL, DB4, MDF, MDB, LDF, DB, DB3 or SQLITE files to CAT, try Microsoft Windows or another comparable tool in the "Security Signature Catalog" 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 CAT converter.