Side Hustle: AI Invoice & Receipt Sorter That Runs 100% Locally

Description and use

A local web app for freelancers that classifies expenses, extracts amounts, flags tax deductibility, and builds printable invoices without sending data to the cloud.

Problem

Freelancers spend hours sorting receipts, categorising expenses, building invoices, and preparing for taxes, while closed‑source tools are costly and expose client data to cloud servers.

Outcome

The prototype correctly categorised 9 of 10 real receipts and flagged 4 as tax‑deductible; a user expressed willingness to pay ₹500/month for it over FreshBooks.

Workflow

• Paste or type an expense description
• Browser‑side AI engine analyses text
• Classifies into one of seven categories
• Extracts amount
• Flags tax deductibility
• Renders result card and logs expense
• Displays summary dashboard
• Enter line items in "description | hours | rate" format
• AI generates printable invoice
• Print or save as PDF

Evidence

Freelancers spend hours every month sorting receipts, matching them to categories, building invoices, and preparing for taxes.

Source

All AI inference runs locally in the browser (or optionally via Ollama running a local Gemma 2B / Mistral 7B model). No cloud API. No data leaks. No per-request billing.

Source

I handed this to a friend who does freelance graphic design. He pasted in 10 real receipts from his last month. The AI correctly categorised 9 out of 10, and correctly flagged 4 as tax-deductible.

Source

The AI generates a clean, printable invoice with a grand total. Hit Print → Save as PDF.

Source