Quantified Self
Quantified Self is a tool for importing viewing and comparing tcx, fit and json files from activity trackers and smart-watches.
Quantified Self is using WebAssembly, as they need it to uncompress the compressed files uploaded to their service that contains the data that is viewed and compared. This is a great use case for WebAssembly, as WebAssembly offers predictable performance over JavaScript. Meaning, CPU intensive, or heavy processing tasks like (de)compression can greatly benefit from WebAssembly. Quantified Self saw ~1.5x speedup on decompressing files when running a WebAssembly implementation vs. the old JavaScript implementation!
Additonal Resources
Date Added: 2/4/20