Invoice AI Turns Phone Photos of Invoices into Small Business Insights

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Invoice AI is an open-source tool built for a Hacktoberfest challenge that helps small shopkeepers analyze their finances. Users photograph invoices with their phone, label each as a sales or purchase invoice, and upload them. The system uses PaddleOCR to extract fields like vendor details, dates, subtotals, taxes, and totals, then validates totals and flags ambiguous entries for user review before they feed into analytics. A FastAPI backend and Streamlit dashboard present metrics such as vendor spending, monthly trends, and sales counts. An interactive assistant powered by the open-weight Gemma 4 model, accessed through Ollama Cloud, answers business questions using the confirmed data.

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