VoiceLedger Turns Spoken Job Notes into GST Invoices Using Open-Weight Models

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VoiceLedger is a prototype app designed to help independent contractors such as plumbers, electricians, and home bakers create tax invoices quickly. Users record a short voice note in English or Hinglish after completing a job, and the app transcribes it with ElevenLabs Scribe. It then matches the client against a MongoDB Atlas database, extracts materials and labor into a structured format using open-weight models like Gemma 2 or Llama 3.3, and computes GST totals through deterministic JavaScript logic. The resulting invoice can be edited, exported as a PDF, shared via WhatsApp, and includes a UPI payment QR code. The project is positioned as a micro-SaaS subscription for small service businesses.

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