Sainsbury's UK Grocery Scraper

Scrape product listings from sainsburys.co.uk by search query. Returns structured data for every product found — including name, brand, price, unit price, size, offer status, and direct product URL.

Features

• Search for any product by keyword (e.g. "beans", "semi skimmed milk", "pasta")
• Multiple queries in a single run
• Extracts prices with multiple fallback strategies for reliability
• Unit pricing with normalised measures (per kg, per litre, etc.)
• Brand detection including Sainsbury's own-brand labels (by Sainsbury's, Taste the Difference)
• Nectar offer and promotional deal detection
• Configurable result limit per query

Input

Field	Type	Description	Default
queries	string[]	List of search queries	required
maxResultsPerQuery	integer	Max products per query (1-100)	20

Example input

{
    "queries": ["baked beans", "whole milk", "sourdough"],
    "maxResultsPerQuery": 10
}

Output

Each result in the dataset contains:

Field	Type	Description
store	string	Always "sainsburys"
query	string	The search query that produced this result
name	string	Product name
brand	string	Brand name (e.g. "Sainsbury's", "Heinz")
price	number	Current price in GBP
unitPrice	number	Price per unit (e.g. per kg, per litre)
unitPriceMeasure	string	Unit measure (e.g. "per kg", "per litre")
unitSize	string	Product size (e.g. "400g", "1 litre")
onOffer	boolean	Whether the product has a Nectar or promotional offer
offerDescription	string	Offer details (e.g. Nectar price text)
imageUrl	string	Product image URL
productUrl	string	Direct link to product page on sainsburys.co.uk
scrapedAt	string	ISO 8601 timestamp

Example output

{
    "store": "sainsburys",
    "query": "beans",
    "name": "Sainsbury's Baked Beans 4x415g",
    "brand": "Sainsbury's",
    "price": 1.65,
    "unitPrice": 0.99,
    "unitPriceMeasure": "per kg",
    "unitSize": "4x415g",
    "onOffer": false,
    "offerDescription": null,
    "imageUrl": "https://assets.sainsburys-groceries.co.uk/gol/...",
    "productUrl": "https://www.sainsburys.co.uk/gol-ui/product/sainsburys-baked-beans-4x415g",
    "scrapedAt": "2026-03-28T10:00:00.000Z"
}

Use cases

• Price monitoring — track Sainsbury's prices over time and detect drops
• Basket comparison — compare grocery costs across UK supermarkets
• Market research — analyse competitive pricing and product ranges
• Deal alerts — build notifications for Nectar deals and promotions
• Shopping apps — power product search and comparison features

Notes

• Sainsbury's uses data-testid attributes and .pt__cost class selectors — these may change when the site redeploys
• The scraper uses multiple fallback strategies for price extraction to handle inconsistent DOM rendering
• Brand is inferred from the product name; own-brand detection covers "by Sainsbury's" and "Taste the Difference" ranges