Extract text from Android video thumbnails (DTHUMB)
To convert DTHUMB thumbnails to another format, you need Android OS or other System software.
To convert other file formats to the "Android Cache File" file type, you need software like Android OS or a similar tool.
.DTHUMB files are internal thumbnail cache files generated by the Android OS. The operating system uses these files to store quick-loading previews of videos to display in the default gallery application. They are hidden system files not designed for direct user interaction.
Users typically encounter .DTHUMB files when they run out of internal storage. These cache files notoriously accumulate over time and silently consume gigabytes of space, even after the original videos are deleted. Because the extension is a proprietary system label, standard media players, image viewers, and web browsers fail to open them. You cannot easily view what media the file is caching.
The best way to handle these files is to convert them to standard formats like MP4, JPG, or PNG. Internal data shows that approximately 97% of .DTHUMB files actually contain raw MP4 video data. By converting them, you can recover the lost thumbnails and view them on any device. However, this file format is difficult to open or convert using standard tools because standard online converters rely on file extensions and instantly reject the proprietary system label. If our analysis detects the supported underlying MP4 embedded format, viewing or conversion is possible.
Convert.Guru analyzes your DTHUMB file, detects the exact format, and lets you read the text inside.
Users also converted 0_0, TMP, THUMB, ITHMB, FLA, MP4, INDD, ASPX, CRDOWNLOAD and MKV files.
If you want to convert DTHUMB file to SYS, DLL, EXE, DRV, VXD, 386, COM, BAT, CMD, SCR, PIF or LNK, you can use Android OS or similar software from the "Video Thumbnail Cache" category. In the File menu, look for Save As… or Export….
To convert MSI, EXE, REG, MST, LNK, CAB, CAT, DRV, INF, SYS, MSU or DLL files to DTHUMB, try Android OS or another comparable tool in the "Video Thumbnail Cache" 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 DTHUMB converter.