Inventory management built for zero-waste shops

Refill OS helps refillery and bulk store owners track stock in grams, stay ahead of reorders, and sync with Shopify — all in one place.

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Currently onboarding shops by application only.

Everything your shop needs, nothing it doesn't

Gram-based inventory

Built for bulk. Track every product by weight — grams in, grams out. No unit conversions, no guesswork.

Automatic low stock alerts

Set a restock threshold per product. Get an email with a ready-to-forward reorder message the moment stock dips below it.

CSV import

Already on Revel, Lightspeed, or Square? Import your existing product list in minutes — no manual re-entry.

Smart reorder suggestions

Get restock quantities based on actual sell-through rate, not guesswork — know exactly how much to order and when.

Shopify sync

Connect your Shopify store and stock updates automatically when online orders come in — no manual entry.

Multi-location support

Manage every location from one dashboard, or roll everything up into a single combined view across your whole shop.

Simple, shop-sized pricing

Pick the plan that fits how your shop runs today — upgrade anytime.

Ready to simplify your inventory?

We're onboarding refilleries and zero-waste shops one by one. Apply and we'll be in touch.

Apply for Early Access
Refill OS

Built for zero-waste shops