Amazon Shopping Optimizer by csytang

Compare Amazon prices by unit, spot multi-pack value, save products, and sort similar listings by real value.

About this extension

Amazon Shopping Optimizer helps shoppers compare Amazon products more intelligently by turning confusing package sizes into simple value signals.

Use it on supported Amazon product pages to:

Calculate unit prices for weight, volume, and count-based products
Detect package size and pack count from the product page
Spot multi-pack pricing that may not be the best value
Save products to your extension for quick access later
Open comparison links only when you explicitly click them

Use it on supported Amazon search results pages to:

Fetch comparable product data from multiple listings
Sort products by total price
Sort products by calculated unit price

Designed for common shopping categories like protein powder, coffee, vitamins, pet food, grocery items, and household essentials.

Key Benefits

Local-first calculations in the browser
No account required
No backend service
Practical value comparison instead of guesswork
Explicit-click comparison links only

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Permissions and data

Required permissions:

Access your data for www.amazon.com
Access your data for www.amazon.co.uk
Access your data for www.amazon.ca
Access your data for www.amazon.de
Access your data for www.amazon.fr
Access your data for www.amazon.it
Access your data for www.amazon.es
Access your data for www.amazon.com.au

Optional permissions:

Access your data for www.amazon.com
Access your data for www.amazon.co.uk
Access your data for www.amazon.ca
Access your data for www.amazon.de
Access your data for www.amazon.fr
Access your data for www.amazon.it
Access your data for www.amazon.es
Access your data for www.amazon.com.au

Data collection:

The developer says this extension doesn't require data collection.