Instant realtime stock checking

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Highly Customisable

Easy to style whether you're code savvy or not.

Realtime Updates

Check stock levels instantly.

Prevent Over Selling

Disable the Add to Cart button if short on stock.

About Stocker

Looking for a better way to prevent over selling? Look no further, Stocker adds an instant stock check right on your product page. As long as you're using the quantity box in your theme Stocker will instantly check levels whenever a customer edits the quantity field.

Fully customise every part of the message, from the copy to the background colour, Stocker will inegrate with every theme.

Sometimes only realtime stock checking will do.

Highly Customisable

Whether you have coding skills or not Stocker is fully customisable from the app settings. Edit everything from the borders to the placeholder text right from the app.

Realtime Stock Checking

Instantly check the stock levels right from the product page and display a user friendly message if you can't meet the order.


Updated and comprehensive documentation as standard.

See the app in action

Explore how the app works in an example store.

View example store

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Pricing 7-day free trial

Standard Plan


  • Fully customisable

  • Realtime stock checking

  • Prevent over selling

* All charges are billed in USD. Recurring charges, including monthly or usage-based charges, are billed every 30 days.

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