Click the "Select File" button above, and choose your OMO file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert OMO to another file type
To convert OMO schemas to another format, you need Apple Xcode or other Database software.
Convert a file to OMO
To convert other file formats to the "Compiled Database Schema" file type, you need software like Apple Xcode or a similar tool.
About OMO files
The .OMO file is an optimized Managed Object Model used primarily by Apple's Core Data framework. It acts as a compiled, binary blueprint that dictates how a database is structured inside macOS and iOS applications.
Developers create and manage the source versions of these models using Apple Xcode. When an application like WhatsApp is compiled for release, the original XML-based MOM files are converted into .OMO files to ensure the database schema loads into device memory as quickly as possible.
The biggest disadvantage of the .OMO format is that it is a proprietary, compiled binary file. It is completely unreadable by standard text editors or database browsers. Users frequently encounter these files when extracting iOS backups or exploring WhatsApp data folders, leading to the frustrating misconception that the .OMO file contains their actual chat history. In reality, it only holds the structural rules, while the real user data is stored elsewhere.
Converting an .OMO file back into a human-readable XML, standard SQL schema, or plain TXT is highly requested by researchers. However, standard online converters universally fail to process .OMO files because decompiling this proprietary structure requires native Apple Core Data libraries and specialized developer tools.
Because this file format is difficult to open or convert outside of the Apple ecosystem, a direct conversion is rarely possible. However, just drag and drop your file into convert.guru to identify the exact format version. We can inspect the binary file and extract the readable text strings, such as internal property and table names, giving you valuable insight even without a full conversion.
Convert.Guru analyzes your OMO file, detects the exact format, and lets you read the text inside.
If you want to convert OMO file to JS, TS, PY, JAVA, CPP, C, CS, PHP, RB, GO, RS or SWIFT, you can use Apple Xcode or similar software from the "Database Schema Definition" category. In the File menu, look for Save As… or Export….
To convert SH, PY, KT, PS1, SWIFT, LUA, PL, JAVA, SCALA, JS, VBS or TS files to OMO, try Apple Xcode or another comparable tool in the "Database Schema Definition" category.
The OMO 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 OMO converter.