Extensions for costco.com — page 3
101 browser extensions built for costco.com. Compare features, permissions, and safety across Chrome, Firefox, and Edge.
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Chrome Web StoreBuySage
Instant AI buying verdict on Amazon & 40+ shopping sites: sentiment, pros & cons, fake-review detection, buying score.
Chrome Web StoreBlister - Brand Watch
Alerts you when brands or retailers from your custom lists appear on shopping pages.
Chrome Web StoreMarketMind Assistant
Side-panel marketplace pricing, savings, and listing assistant.
Chrome Web StoreApogee Lens
See the opportunity cost of online shopping prices — in time to financial freedom.
Chrome Web StoreShoptimus Prime
Personalized shopping assistant.
Firefox Add-onscazadescuentos
Allow users to track products on certain online stores, the user will be notified when their tracked products get a discount.
Chrome Web StoreSpend or Swipe
Your judgmental shopping companion. Pause before you buy.
Chrome Web StoreDigital Household - Purchase History Extractor
Extract and organize your grocery purchases from Amazon Whole Foods and other major retailers.
Chrome Web StoreAI Shopping Cart
Your AI-powered personal shopping assistant. Save time and money with intelligent cart management and price comparisons.
Chrome Web StoreKaynix AI Shopping Assistant
Your AI shopping copilot for smarter decisions
Chrome Web StoreAisle — AI Shopping Assistant
Product research in your tab—filters, Q&A, clear picks. Bring your API key. Optional add-to-cart. No checkout.
Chrome Web StorePlately Auto Shopper
Auto-fill your Walmart and Amazon carts, and save specific products to your Plately catalog with one click.
Chrome Web StoreKindScan — Product Safety Checker
Check if any product is safe for your whole family — right from the product page.
Chrome Web StoreSmartShop AI - Price Comparison & Deal Alerts
Compare prices, find coupons & get AI deal alerts across 30+ stores. Shop smarter, save more.
Firefox Add-onsBasketBot Companion
BasketBot finds the lowest grocery price across 50+ stores, then auto-fills your cart at checkout. Supports Walmart, Kroger, Target, Safeway, Publix, Meijer, Costco, Whole Foods, ALDI, H-E-B, and more.
Firefox Add-onsPriceWise – Price Compare & Coupons
Automatically compare prices across stores and discover better deals instantly.
Chrome Web StoreInvestment Instead
Making Saving Easier, One Purchase at a Time
Chrome Web StoreWarehouseMeals
Sync your Costco receipts to WarehouseMeals
Chrome Web StoreCanadian Price Parity
Find the Canadian equivalent of any US product page. CAD prices and one-click links to Amazon.ca, Best Buy, Walmart, more.
Seed Oil Alert
Warns if a product contains seed oils.
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Firefox Add-onsBilly — Subscription sync
Sync your Amazon, Netflix, YouTube TV, and Apple subscriptions into Billy to track upcoming charges alongside your budget.
Firefox Add-onsSupplyUploader
No description
Chrome Web StoreTimeisMoney
Convert prices into work time. Pause Impulse. Spend Smarter.
Chrome Web StoreUnclaimed Credits Smart Buying Extension
Save info on purchasing to improve suggestions for future purchases. Info collected is not sold or provided to 3rd parties.
Chrome Web StorePrice Tracker — Smart Price Monitoring
Track prices on popular shopping sites. Get instant alerts when prices drop. Never overpay again.
Chrome Web StorePricePiq
PricePiq automatically tracks purchase protections, price drops, and refund opportunities after you buy.
Chrome Web StoreSeedScreen
On-device seed oil detector for product pages on major retailers.
Chrome Web StoreShopSummary
Get AI-powered summaries of product reviews while you shop. See pros, cons, quality scores, and fake review detection at a glance.
Chrome Web StoreProx Shopping Assistant
Compare grocery prices across different retailers
Chrome Web StoreCostco Image Downloader
Download product images from supported Costco pages as single files or a ZIP archive.
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