TabletopSimulatorMTGImporter is a simple tool that streamlines the process for importing MTG decks from a tool like Archidekt into TabletopSimulator.
It is designed for use with mods such as this one.
The easiest way to use the importer is to use the web version. The only limitation of the web version is that it saves files to your downloads folder, so you have to manually move them from there to the folder where TabletopSimulator expects them.
For a desktop version that does this last copy step for you, you can download the latest binaries here (click "Assets" and choose either the GUI or the command line tool). Alternatively, can can build them from source using Visual Studio 2019 Community Edition.
See the documentation for instructions on usage.
Contributions are welcome! Please file an issue through Github prior to sending a pull request.