qAllInOne is an open-source and simple application that is used to open PDFs, view picture slideshows, and works as a multifunctional player for audio and video files. The user can use this program for all media formats and open each multimedia file. This program can open BMP, PNG, JPEG, JPG, and GIF images, and play OGG, WAV, and MP3 audio files. The utility enables you to watch videos in 3GP, MP4, WMV, and AVI format, and offers support for popular and common file types. There are three different interfaces for PDF viewing, multimedia playing, picture, and more advanced features in this utility. You can get benefit with simple and prominent options and also reachable for both advanced users and beginners. qAllInOne is an extensive and easy to use program that helps you to save disk space, effort and time, and bundled with many functions into a single interface.