DSView is a GUI program for supporting various instruments from DreamSourceLab, including logic analyzers, oscilloscopes, etc. DSView is based on the sigrok project.
The sigrok project aims at creating a portable, cross-platform, Free/Libre/Open-Source signal analysis software suite that supports various device types (such as logic analyzers, oscilloscopes, multimeters, and more).
The DSView software is in a usable state and has official tarball releases. However, it is still a work in progress. Some basic functionality is available and working, but other things are always on the TODO list.
Pre-built binaries are available on the releases page.
DSView software is licensed under the terms of the GNU General Public License (GPL), version 3 or later.
While some individual source code files are licensed under the GPLv2+, and some files are licensed under the GPLv3+, this doesn't change the fact that the program as a whole is licensed under the terms of the GPLv3+ (e.g. also due to the fact that it links against GPLv3+ libraries).
Please see the individual source files for the full list of copyright holders.