Quantum Hub is a zerosetup, privacyfirst local AI trainer and scientific workspace running entirely in your browser. Unlike cloud tools that require complex Python environments or send sensitive data to third-party servers,Quantum Hub lets you upload CSV/JSON datasets, configure neural networks, and train models locally using TensorFlow.js inside a background worker thread.Features include live loss curves, auto normalization,early stopping,IndexedDB checkpointing,and a full Python/NumPy engine!