Click the "Select File" button above, and choose your EWF file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert EWF to another file type
To convert EWF Forms or images to another format, you need EnCase or other Disk Image software.
Convert a file to EWF
To convert other file formats to the "Forensic Image & Encrypted Data" file type, you need software like EnCase or a similar tool.
About EWF files
The .EWF file extension serves three very distinct purposes depending on the software used. Globally, it is best known as the Expert Witness Format, a proprietary digital forensic disk image used by EnCase to capture bit-for-bit copies of hard drives. In the Netherlands, the file is used as an Encrypted Web Form data file for the Jnet e-formulier software and the i-NUP standard to process government submissions. Finally, it can act as a SOLIDWORKS eDrawings CAD viewer file, which stores 2D drawings as a ZIP-compressed SVG container.
Working with .EWF files is incredibly restrictive. Forensic image variants are massive, heavily encrypted, and require expensive enterprise software like EnCase or FTK Imager to open. They are not supported by standard operating systems or web browsers. The Dutch web form variants are completely locked into an obsolete, closed ecosystem, meaning you cannot read the data without the original portal keys. eDrawings files are locked 'viewer' files, stripping away the native 3D geometry needed for proper CAD editing.
When converting, professionals migrate legacy EWF forensic images to the modern E01 format or extract the contents to a standard DD or ISO file. For eDrawings files, extracting the internal data to SVG or PDF is the most realistic target. For government forms, data extraction to XML or TXT is best if decryption is possible.
Because these formats are highly secure, proprietary, and chunk-based, standard online converters fail to process them. Often, only the original software can properly read or export the data. However, just drag and drop your file into convert.guru to identify the exact format, inspect the file structure, and show text or internal content. If our analysis detects a supported underlying or embedded format - such as the ZIP-compressed SVG data inside an eDrawings file - viewing or conversion may still be possible.
Convert.Guru analyzes your EWF file, detects the exact format, and lets you read the text inside.
If you want to convert EWF file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use EnCase or similar software from the "Forensic Image & Web Form" 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 EWF, try EnCase or another comparable tool in the "Forensic Image & Web Form" category.
The EWF 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 EWF converter.