Extract text from Theme or database files (WT)
To convert WT Files to another format, you need MongoDB or other Database software.
To convert other file formats to the "WiredTiger Data File" file type, you need software like MongoDB or a similar tool.
The .WT file extension is most commonly associated with the WiredTiger storage engine, the default database engine used by MongoDB starting from version 3.2. These files contain binary-encoded NoSQL document data (BSON), indexes, and metadata required by the database system to manage large-scale data storage and document-level concurrency control.
A much smaller percentage of .WT files are WordTheme Dictionary files. These are essentially standard ZIP archives containing user-created dictionary data for the My Dictionary mobile application.
Users often need to convert .WT files when attempting to recover data from a crashed database, migrating off MongoDB, or analyzing raw database files without setting up a dedicated database server. The main disadvantage of the WiredTiger format is that it is highly proprietary and dependent on the MongoDB daemon (mongod). The data is tightly compressed (usually with Snappy, zstd, or zlib) and relies on internal caching structures, meaning you cannot just open a .WT file in a standard text editor. It is closed, complex, and requires server infrastructure to process.
The best conversion targets for MongoDB data are JSON, CSV, or BSON. Converting to CSV is excellent for tabular analysis but will flatten complex nested document structures, losing some hierarchical data context. JSON preserves this structure perfectly. For the WordTheme variant, conversion is much simpler: renaming the file to ZIP allows extraction of the internal text data.
Because the WiredTiger format is a complex, binary database structure, standard online converters fail to process it. It usually requires the original MongoDB tools, like mongodump or mongoexport, to properly read and export the data. However, just drag and drop your file to identify the format, view it, and convert it when possible using convert.guru. Our analysis can inspect the file headers, show underlying text strings, or detect if your specific .WT file is actually the supported ZIP-based WordTheme format, making viewing and extraction possible directly in your browser.
Convert.Guru analyzes your WT file, detects the exact format, and lets you read the text inside.
Users also converted BSON, MVR, 0000000001, PPM, MOL and VOL files.
If you want to convert WT file to PPM, MOL or VOL, you can use MongoDB or similar software from the "NoSQL Database Storage Engine" category. In the File menu, look for Save As… or Export….
To convert files to WT, try MongoDB or another comparable tool in the "NoSQL Database Storage Engine" 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 WT converter.