Sorts grocery products by price per kg and shows, on every product, which shop sells it cheaper. A free Chrome extension.

What it does

A 700 g pack at 425 TL or a 350 g pack at 230 TL: which is cheaper? And is it cheaper at the shop down the (virtual) road? Terazi is a free Chrome extension that answers both on the page you are already looking at.

Sorts by price per kg or litre

One click in the bar at the bottom right: ↑ Artan puts the cheapest per kg first, ↓ Azalan the most expensive, ✕ brings back the shop's order. Multipacks like 4 x 1 L, 6'lı or 1000 g x 2 are counted correctly, and the page doesn't jump.

Shows the unit price the shop leaves out

Many shops print only the package price. Terazi works it out from the price and the size in the name and shows it on the product, like ≈ 478,00 TL/kg.

Tells you, on every product, where it is cheaper

Each product gets one of three badges. Click a red or amber one to open that product at the other shop.

✓ En ucuz burada Nothing Terazi found elsewhere is cheaper. Cheapest here.
Aynısı Şok'ta %6 daha ucuz The same product, same brand and size, is 6% cheaper at Şok.
Benzeri Migros'ta %19 daha ucuz A similar product is 19% cheaper per kg at Migros: same kind and variant (lactose-free stays lactose-free, sliced stays sliced), any brand.

Estimates what you saved

When you switch to a cheaper shop, or add a product to the cart where it is cheapest, Terazi counts the difference and keeps a running total in the bar: ≈ 312 TL tasarruf. The total lives only in your browser.

Private by design

No account, no sign-up. No email, phone or membership needed.
No personal data collected. What you buy, search or save is never sent to us or anyone else.
Never used for ads or marketing. Your data is not sold, shared, profiled or used to show you ads.
No tracking, no analytics. Terazi has no server and no code that counts your visits or follows you across sites.
Everything stays in your browser. Prices you saw (2 days) and your savings total are stored on your computer only and deleted with the extension.
Only a product name for live prices. To find other shops' prices, only the product name or search term goes to that shop's own search, with no identifier attached.

Full privacy policy.

Where it works

Shop	Sorting and unit prices	Compared from
Migros, Macrocenter	Yes	Live search + pages you visit
Şok	Yes	Live search + pages you visit
Amazon	Yes (Terazi computes its own unit price; seller-entered ones are often wrong)	Live search + pages you visit
A101, CarrefourSA, Getir	Yes	Pages you visit (they block background searches or need an address)
Hepsiburada, Trendyol Beta	Yes	Pages you visit

"Pages you visit" means prices Terazi saw on that shop in the last 2 days. Live prices are refreshed after an hour.

How it works

On the page. Terazi reads the product names and prices the shop already shows, works out TL per kg, litre or piece, and reorders the products with CSS, so the shop's own page keeps working.

Same product or similar. Two products are the same when brand, total size, variant and fat content match and the names differ only by filler words (Taze, Tam Yağlı, Peyniri, UHT…). They are similar when they are the same kind of product and variant, sold by the same unit, at most four times apart in size.

Other shops. As products scroll into view, a background worker searches Migros, Macrocenter, Şok and Amazon for the product name and for the product without its brand, at most two requests at a time per shop, cached for an hour.

Kept working. Every day an automated check opens all nine shops with the extension, verifies cards, unit prices, sorting and badges, and opens a fix when a shop changes its site.

Get it

Install it free from the Chrome Web Store; the Terazi bar then appears at the bottom right on supported shops. Have a shop to add? Write to support@magnificalabs.dev.

See it on each shop