Click the "Select File" button above, and choose your DUP0 file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert DUP0 to another file type
To convert DUP0 duplicates to another format, you need Google Picasa or other Backup software.
Convert a file to DUP0
To convert other file formats to the "Sync Conflict Marker File" file type, you need software like Google Picasa or a similar tool.
About DUP0 files
The .DUP0 file is primarily an automatically generated duplicate file marker or temporary backup file. In most cases, it is created by software like Google Picasa or Canon Digital Photo Professional to handle duplicate photos during cataloging, where it is essentially a renamed JPG file. Alternatively, it is used by Samsung S Note as a temporary backup file, acting as a standard ZIP archive containing notes and media. The main disadvantage of the .DUP0 format is that the operating system does not recognize the extension. Double-clicking it will prompt an error because Windows and macOS do not know which application to launch. This breaks standard workflows and prevents users from directly viewing photos or extracting backup data. Standard online converters often fail to process them because they expect a defined structural standard, not a disguised file format. Target formats depend entirely on the origin of the file. Picasa files should be converted to JPG or PNG, while Samsung S Note backups are best converted to ZIP to extract internal XML or image data. Because this is an undocumented, software-specific marker, standard apps fail to read it. However, convert.guru provides a realistic workaround. Just drag and drop your file to identify the format, view it, and convert it when possible. Our analysis can detect supported underlying embedded formats, making viewing and conversion possible even when the original software is unavailable.
Convert.Guru analyzes your DUP0 file, detects the exact format, and lets you read the text inside.
If you want to convert DUP0 file to BAK, BACKUP, OLD, TMP, TEMP, ARC, ZIP, TAR, GZ, 7Z, RAR or ISO, you can use Google Picasa or similar software from the "Duplicate Marker or Temp Backup" category. In the File menu, look for Save As… or Export….
To convert SNAPSHOT, OLD, IMG, RESTORE, ISO, COPY, VMDK, TMP, VHD, BAK, ARCHIVE or BACKUP files to DUP0, try Google Picasa or another comparable tool in the "Duplicate Marker or Temp Backup" category.
The DUP0 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 DUP0 converter.