Save the known item numbers.
Add Costco, Walmart, or Sam's Club products and quantities before purchasing becomes available. Stay signed in and confirm shipping and payment details with the retailer.
Built for high-demand shopping
Stop rebuilding your shopping list when every second matters.
Shopping List Adder turns product numbers into ready Costco, Walmart, and Sam's Club lists—complete with quantities—so you can skip product searches and take a shorter path to Add to Cart when a drop opens.
One-time paymentNo subscriptionSecure Stripe checkout
Shopping List Adder
CostcoWalmartSam's
Login ready · list connected
1992235× 2
1814970× 1
18555463299× 3
Default quantity2
Add 3 items to list →
✓ Ready for another add—no refresh needed.
A shorter path from item number to ready list
High-demand items are stressful enough.
When a product drop is approaching, the tedious part should not be copying item numbers, reopening list pages, refreshing login state, and setting quantities one product at a time.
The usual way
- Search every item separately
- Wait for each page and list dialog
- Repeat quantity changes
- Lose time to stale login state
With Shopping List Adder
- Paste a complete item-number batch
- Set quantities in one focused panel
- Automatically recover short-lived login state
- Prepare the list before availability opens
Why lists help during a drop
Start from saved products instead of starting from search.
For a prerelease or high-demand release, a prepared list gives you a direct place to refresh and check availability when sales open. This can reduce extra navigation when search results or product pages are under heavy traffic.
Refresh the list and watch for Add to Cart.
Open the saved list shortly before release, then use the retailer's normal cart and checkout flow as soon as the item becomes eligible.
A list is not a reservation.
Saving an item does not hold inventory or place it in your cart. The extension does not bypass waiting rooms, queues, security, purchase limits, or retailer availability rules.
How it works
Three steps. One ready shopping list.
Paste item numbers
Enter one product number per line. Add a quantity once or override it per item.
Choose your retailer
Use the same side panel for Costco, Walmart, and Sam's Club shopping lists.
Prepare before the rush
Save known item numbers early, then open the list and move to Add to Cart when the retailer enables purchasing.
Simple lifetime pricing
Pay once. Keep your faster workflow.
No monthly charge and no retailer account credentials sent to us. Your purchase unlocks the extension in Chrome.
- Costco, Walmart, and Sam's Club support
- Batch item numbers and quantity controls
- Purchase restoration with a license code
- Future extension updates included
Lifetime access
$5
USD · one-time paymentCheckout is securely hosted by Stripe.
Shopping List Adder helps organize and submit item numbers to retailer list features. Inventory, eligibility, purchase limits, retailer API behavior, and checkout success remain controlled by each retailer.
Frequently asked questions
Know before you install.
Is the $5 charge a subscription?
No. It is a one-time lifetime unlock for the extension.
Can it guarantee a high-demand item?
No. It gives you a shorter route from a saved list to the retailer's normal cart flow, but it does not reserve inventory or guarantee availability, eligibility, or checkout.
Does it bypass retailer queues?
No. It avoids repeating product searches and may reduce reliance on a busy product page, but all waiting rooms, security checks, limits, and retailer controls still apply.
Does it receive my card number?
No. Payment occurs on Stripe's hosted checkout. The extension receives only an opaque license code.
Can I restore my purchase?
Yes. Save the license code shown after checkout and enter it in the extension's Restore Purchase field.
Be ready before inventory moves
Build the list once. Spend your time on the purchase that matters.
By purchasing, you agree to the Terms and Refund Policy.