Udhaar Book turns photos of shop credit notebooks into tracked balances and reminders

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A developer has built Udhaar Book, an open-source tool that reads a photo of a shopkeeper's handwritten credit ledger, known as a khata. An open-weight AI model extracts the entries, with a deterministic parser as a fallback when no API key is available. The shopkeeper must confirm every line before anything is recorded, and the app tracks running balances per page. Reminders are generated in English, Hindi, or Marathi, with amounts pulled from the ledger rather than the model. The project runs at no cost using free-tier models and a local SQLite file, and was submitted to a Hacktoberfest challenge.

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