Using Web MiniDisc offline
Electron WMD
Electron WMD is a standalone desktop version of Web MiniDisc Pro by the same developer. It can be found at this GitHub link.
Browser app
Web MiniDisc Pro can also be installed locally as a web app. This means it can be run without an internet connection or opening a web browser.
On Windows with Microsoft Edge, click the “3 blocks and plus” icon next to the Favorites “star” icon:
Choose “install” - the app is now available in your Start or Apps menu.
These directions should apply to Linux or MacOS systems as well.