Inventory sync & integration for Shopify, BigCommerce & Square
Your inventory, always in sync.
OneKeepr connects your Shopify or BigCommerce store with your Square POS automatically. Sell in-store, sell online — your inventory stays accurate everywhere.
7-day free trial · No credit card required · Cancel anytime
✓ Inventory synced in real time — always accurate
Built for independent retailers
Real-time
inventory updates
Zero
manual data entry
2-way
bidirectional sync
$29
per month to start
The most reliable inventory sync for Shopify, BigCommerce, and Square retailers. Period.
We built OneKeepr because every other tool failed us. No more overselling. No more manual updates. No more wasted hours. Just inventory that works — automatically, every time.
Stop managing two systems manually
Most retailers waste hours every week keeping their POS and online store in sync. OneKeepr eliminates that work completely.
✗ Without OneKeepr
- ✗Manually updating inventory in two systems
- ✗Overselling products that are out of stock
- ✗Hours spent fixing inventory discrepancies
- ✗Customers ordering items you don't have
- ✗Staff entering the same product data twice
- ✗Inventory errors during busy seasons
✓ With OneKeepr
- ✓Inventory syncs automatically in real time
- ✓Never oversell — stock is always accurate
- ✓Zero time spent on manual updates
- ✓Customers see live inventory on your website
- ✓Add a product once, it appears everywhere
- ✓Accurate inventory even during your busiest days
Everything you need to stay in sync
Built for independent retailers who sell both in-store and online.
Real-time Inventory Sync
The moment a sale happens in-store, your website updates instantly. Online orders reduce your Square inventory automatically.
Auto Product Creation
Add a product in Square and it appears in Shopify or BigCommerce automatically — with all variants, images, pricing, and inventory.
Bulk Sync
Already have an existing catalog? Import everything at once with our bulk sync tool. Preview before you commit, rollback if needed.
Your sync dashboard
See every inventory update in real time
Syncs Today
47
Total Syncs
1,284
Status
Active
NK-AF1-10
Square → Shopify
Qty → 11
2 min ago
JD4-RET-9
BigCommerce → Square
Qty → 7
8 min ago
AD-SB-8.5
Square → Shopify
Qty → 3
15 min ago
Know your numbers. Grow your business.
The Growth dashboard gives you a complete picture of your store's performance — POS and online, combined in one place.
Combined Today
Best channel: POSRevenue
$4,100.71
Orders
9
Items Sold
52
POS Sales
SquareRevenue
$4,100.71
Orders
9
Items Sold
52
Avg Ticket
$455.63
Avg Item Price
$78.86
Profit Margin
49.1%
Online Sales
Online storeRevenue
$1,240.00
Orders
3
Items Sold
8
Avg Ticket
$413.33
Avg Item Price
$155.00
Profit Margin
44.2%
Running Low
3 itemsNike Air Force 1 - White
Jordan 4 Retro - Black Cat
Adidas Samba OG - White
Top Sellers
Last 7 daysNike Kobe XI Elite Protro
8 units sold
$1,600
Air Jordan 13 Retro
7 units sold
$1,505
Nike Zoom Vomero 5
7 units sold
$1,120
Air Jordan 1 Retro High OG
5 units sold
$900
Included in the Growth plan — $49/month
Turn your inventory data into buying decisions.
The Inventory Intelligence dashboard shows you what's selling, what's not, and exactly what to do about it — by category, vendor, and size.
Category Performance
Square POS · In-StoreVendor Performance
Square POS · In-StoreDead Stock
Consider a markdownNike Air Max 270 - Size 13
62 days since last sale
Adidas NMD R1 - Size 7
38 days since last sale
Puma RS-X - Size 12
91 days since last sale
Low Stock — Reorder Now
Act fastNike Kobe XI - Size 10
2 left · ~7 days remaining
Air Jordan 4 - Size 9.5
1 left · ~6 days remaining
Adidas Samba - Size 10.5
3 left · ~10 days remaining
Included in the Pro plan — $149/month
Works with the tools you already use
OneKeepr's sync and integration connects your existing Shopify, BigCommerce, and Square accounts — no switching required.
Square POS
The in-store point of sale used by 800,000+ businesses. OneKeepr connects directly to your Square inventory, catalog, and webhooks.
Shopify
One of the world's most popular ecommerce platforms. OneKeepr syncs and integrates products, variants, inventory, and images between your Shopify store and Square.
BigCommerce
A leading ecommerce platform for growing retailers. OneKeepr syncs products, variants, inventory, and pricing between your store and Square.
COMING SOON
Square + WooCommerce · Lightspeed + BigCommerce · Clover + BigCommerce
Up and running in minutes
No technical knowledge required. If you can use Square, you can use OneKeepr.
Connect your stores
Enter your Square and online store credentials — Shopify or BigCommerce. OneKeepr securely connects both platforms in under 5 minutes.
Choose your settings
Pick which system is your primary source of truth. Set your sync preferences and excluded categories.
You're done
OneKeepr handles everything automatically from here. Your inventory stays in sync 24/7 without any manual work.
Simple, honest pricing
No setup fees. No contracts. Cancel anytime.
Starter
- ✓Up to 1,000 SKUs
- ✓Bidirectional inventory sync
- ✓Auto product creation
- ✓Bulk sync tool
- ✓Sync history and rollback
Growth
- ✓Up to 10,000 SKUs
- ✓Everything in Starter
- ✓Combined POS + Online sales dashboard
- ✓Profit margin by channel
- ✓Top sellers by product
- ✓Low stock & dead stock alerts
- ✓Priority support
Pro
- ✓Unlimited SKUs
- ✓Everything in Growth
- ✓Inventory Intelligence dashboard
- ✓Category & vendor performance
- ✓Size curve analysis
- ✓Dead stock & markdown suggestions
- ✓Low stock reorder alerts
- ✓Dedicated support
7-day free trial on all plans. No credit card required to start.
Frequently asked questions
Everything you need to know about syncing Square with Shopify and BigCommerce.
Does Square sync with Shopify?
Yes. OneKeepr provides real-time, two-way inventory sync and integration between Square POS and Shopify. A sale in-store updates your Shopify store instantly, and online orders reduce your Square inventory automatically.
Does Square sync with BigCommerce?
Yes. OneKeepr keeps Square POS and BigCommerce in sync automatically — inventory, products, variants, images, and pricing — in both directions, with no manual data entry.
How does OneKeepr compare to other sync providers?
OneKeepr is built to be the most reliable inventory sync and integration available — faster, two-way, automatic, with sync history and rollback. We tested it against the alternatives and built it to come out ahead. Starts at $29/month.
How does the inventory sync work?
OneKeepr connects directly to your Square, Shopify, and BigCommerce accounts and syncs inventory automatically in real time. You choose which system is your source of truth, and changes flow in that direction — no spreadsheets, no double entry.
Do I need technical skills to set it up?
No. If you can use Square, you can use OneKeepr. Connecting your store takes a few minutes, and the sync runs automatically from there.
How much does OneKeepr cost?
OneKeepr starts at $29/month with a 7-day free trial and no credit card required to start. Higher plans add a combined sales dashboard, inventory alerts, and advanced inventory intelligence.
Ready to stop doing it manually?
Join independent retailers who use OneKeepr to keep their inventory accurate automatically.
Start your free trial →7 days free · No credit card required · Cancel anytime