QSampler is a free and open source LinuxSampler frontend GUI for Linux. LinuxSampler is streaming capable pure software audio sampler. It is a lite weight audio sampler but with high stability, efficiency and very low latency. It is written in C++ and qt and released under open source GNU General Public License. It is available as a portable AppImage format for Ubuntu. First go to the below QSampler Audio Sampler download link and download the latest version in .AppImage file format.