SilentCanoe
SilentCanoe /
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Costco Bill Analyser
☕ Buy me a coffee 100% Local

Costco Bill Analyser

Upload your Costco receipt PDFs and get deep spending insights — categories, trends, staples, and more. Zero uploads, 100% private.

Llama 3.2 3B — AI Receipt Analysis (~2 GB · Chrome 113+ · cached after first use)
Idle — model downloads on first file drop (requires WebGPU)
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Drop Costco Receipt PDFs here

or click to browse — supports multiple files at once

PDF only·Processed locally·Never uploaded

Frequently Asked Questions

How does the Costco Bill Analyser read my receipts?

The tool extracts text directly from your Costco PDF receipts using pdf.js, which runs entirely in your browser. When AI mode is on, a local Llama 3.2 3B model (downloaded once, ~2 GB) parses the text for higher accuracy. A regex-based parser is used when AI is off or unavailable.

Is my financial data safe?

Completely. All processing happens in your browser — your receipts and spending data are never sent to any server. The tool has no backend. Even the AI model runs locally on your device via WebGPU.

What if the AI mode doesn't work on my computer?

AI mode requires WebGPU, available in Chrome 113+ and Edge 113+ on desktop. On unsupported browsers, the tool automatically falls back to the regex parser, which works on all modern browsers including Firefox and Safari.

Can I analyse receipts from multiple months?

Yes — you can upload as many Costco PDF receipts as you like. The dashboard aggregates spending across all receipts, showing monthly trends, cumulative category totals, and staple items that appear across multiple shopping trips.

How do I export my spending data?

Use the Export tab to download an "All Items CSV" (every item from every receipt with category labels), a "Summary CSV" (per-receipt totals and top category), or copy a plain-text summary to your clipboard for pasting into other apps.