Flux — Universal Unit & Currency Converter

17 conversion categories, live FX rates, and a voice interface — all running in the browser with no backend required.

Live at www.iadamdsouza.com

How It Works

User input  (typed or spoken)
      │
      ├─▶  Web Speech API  ─▶  browser-native transcription
      │
      └─▶  Whisper (transformers.js)  ─▶  in-browser WASM inference
                                              (audio never leaves device)
      │
      ▼
  NLP parser  (regex + token matching)
      │
      ├─▶  unit conversion  ─▶  local formula lookup
      │
      └─▶  currency conversion  ─▶  Frankfurter API (ECB, daily rates)
                                            │
                                       result + Web Audio visualizer

Features

• 17 conversion categories — length, mass, temperature, volume, speed, area, time, digital storage, pressure, energy, power, frequency, angle, force, torque, fuel economy, currency
• Live FX rates — Frankfurter API (ECB-sourced, updated daily)
• Voice input — in-browser Whisper via transformers.js; audio processed locally, never uploaded
• Natural language parsing — understands convert 5 miles to km or 100 USD to EUR
• Audio visualizer — Web Audio API frequency bars, colour-coded per conversion category
• Flip conversion — one-click source/target swap
• Chat interface — conversational history with suggestion chips

Stack

Layer	Technology
Frontend	React
Voice (primary)	Web Speech API
Voice (fallback)	OpenAI Whisper via transformers.js (WASM)
Currency rates	Frankfurter API
Audio	Web Audio API
NLP parsing	Custom regex + token matching

Local Development

git clone https://github.com/adsouza5/flux
cd flux
npm install
npm run dev
# App on :5173

License

MIT