This is a browser-based application for converting CAS files to WAV files for playback on digital devices. The implementation is based on cas2wav.
Runmake.sh on the command-line to compile the wasm and js code using Emscripten.
You need to serve index.html for example using Python:
python -m http.server
and then visit the site (localhost) to load the application or you can visit http://nicktasios.nl/projects/cas2wav.html.
You can load either a CAS file or a ZIP file containing a CAS file.
For creating cables for your MSX, you can check http://www.finnov.net/~wierzbowsky/caslink2.htm.
If you'd like to contribute, either create an issue with your question/request, or make a pull request. Currently the UI is very basic, and if you'd like to create simple and clean interface I'd appreciate it.