Konvertor is a multimedia viewer and format converter. It is closed source, but free for commercial and non-commercial use. Konvertor is only for Microsoft Windows (7/8/10).
Konvertor supports a very large number of image/music/video/text/3d/archive formats (4000+).
Konvertor uses the following third-party programs and libraries (the list may be incomplete):
- dcraw (support for Camera RAW formats)
- ffmpeg (support for audio and video formats)
- bmf (.BMF support)
- BpgDec (.BPG support)
- 7zip (support for archives)
- openjp2 (.JP2 support)
- FLIF (.FLIF support)
- FreeImage (library)
- CAD Image DLL (library)
It seems most (if not all) of formats are supported by third parties and Konvertor on it's own cannot read/write almost anything.