4DD Converter

Extract text from 4D database files (4DD)


Drop or upload your .4DD file
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How to extract text from your 4DD file

  1. Click the "Select File" button above, and choose your 4DD file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert 4DD to another file type

To convert 4DD databases to another format, you need 4D or other Database software.

Convert a file to 4DD

To convert other file formats to the "4D Database File" file type, you need software like 4D or a similar tool.


About 4DD files

The .4dd file extension represents a proprietary database data file used by the 4D (4th Dimension) relational database management system. It acts as the primary storage container for actual records and raw data entered into the database. You can learn more about the ecosystem on Wikipedia. The biggest disadvantage of the .4dd format is its heavily restricted, closed nature. A .4dd file is completely useless on its own because it only contains raw, unmapped binary data. It requires a companion 4db or .4dbase structure file to define the tables, fields, and relationships. Furthermore, you cannot query it with standard SQL tools outside the native 4D environment, and opening it requires an expensive software license. Users typically need to convert this file to export their locked-in data to standard formats like CSV, JSON, or SQL. This allows migration to open databases like MySQL or analysis in Microsoft Excel. Because the schema is separate and the binary format is undocumented, standard online converters fail to process it. Drag and drop your file to see what it is and convert it if supported. convert.guru can still identify the file format, inspect the file, and show text or internal content. If our analysis detects a supported underlying or embedded format, viewing or conversion may still be possible.

Convert.Guru analyzes your 4DD file, detects the exact format, and lets you read the text inside.

Users also converted SAV, SF3 and BOK files.


FAQ

If you want to convert 4DD file to DB, SQLITE, SQLITE3, MDB, ACCDB, DBF, ODB, FDB, GDB, MYD, FRM or SQL, you can use 4D or similar software from the "Relational Database Data Storage" 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 4DD, try 4D or another comparable tool in the "Relational Database Data Storage" category.



The 4DD 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 4DD converter.