8 Like Converseen Good alternative? YES NO Converseen is an open source batch image resizer and conversion tool written in C++ with the powerful Qt4 libraries. Thanks to the Magick++ image libraries it supports more than 100 image formats. You can convert and resize an... Open Source Windows Linux Batch conversion Support for Batch Mode Add a feature Warning Installation without activation key works showing different dangerous 3rd party softwares (bloatware, spyware, etc.). Avast Antivirus detected at least 3 different kind of viruses (or potentially viruses/dangerous software).