Click the "Select File" button above, and choose your BDIC file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert BDIC to another file type
To convert BDIC dictionaries to another format, you need Google Chrome or other Data software.
Convert a file to BDIC
To convert other file formats to the "Binary Dictionary File" file type, you need software like Google Chrome or a similar tool.
About BDIC files
The .BDIC file is a compiled binary spell check dictionary used primarily by the Chromium Project and web browsers like Google Chrome or Microsoft Edge. Under the hood, these files use the Hunspell or MySpell engine to verify text spelling as you type on the web.
The main disadvantage of the .BDIC format is its compiled binary structure. It is closed and highly optimized for machine reading rather than human editing. You cannot simply open a .BDIC file in a text editor to see or change the spell-check vocabulary. Doing so will only display garbled, unreadable characters. If you want to add custom words in bulk or modify the rules, you are blocked by this proprietary design.
Users typically need to convert .BDIC files into DIC (Hunspell dictionary) or TXT formats to view and edit the word lists. However, standard online converters fail to process it because it requires specific command-line tools (like Chromium's convert_dict) to decompile the binary code back into plain text. This file format is difficult to open or convert because only the original Chromium rendering engine can properly read or export the data. We can inspect the file, show raw internal content, and if our analysis detects extractable text, viewing or converting the dictionary data may still be possible.
Convert.Guru analyzes your BDIC file, detects the exact format, and lets you read the text inside.
If you want to convert BDIC file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Google Chrome or similar software from the "Spell Check Dictionary" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to BDIC, try Google Chrome or another comparable tool in the "Spell Check Dictionary" category.
The BDIC 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 BDIC converter.