Shopify inventory management for serious sellers
Shopify runs your store. Celerp runs everything behind it - inventory, manufacturing, purchasing, and accounting - all synced to Shopify in real time.
The Celerp app for Shopify is coming soon. Join the beta waitlist to be first in line.
What Shopify's built-in inventory can't do
Shopify is great for selling. It wasn't designed to be your ERP.
No multi-location on basic plans
Shopify multi-location is locked to higher-tier plans. Celerp gives you unlimited locations for free.
No manufacturing or BOM
If you make what you sell, Shopify doesn't track bills of materials, assemblies, or production runs. Celerp does.
No lot tracking or expiry dates
Shopify has no batch numbers, lot tracking, or expiration date management. Critical for food, pharma, and cosmetics.
No real accounting
Shopify reports revenue. Celerp tracks COGS, margins, journal entries, and your full P&L - automatically.
How Celerp connects to your Shopify store
Get Celerp
Download the desktop app for Mac, Windows, or Linux, or deploy Celerp on your own cloud. The app is free.
Enable Connect
Start your 14-day free trial. Connect unlocks Shopify sync, encrypted backups, and secure access from anywhere.
Connect your store
Click "Connect Shopify" in Celerp. It installs the free Celerp app on your Shopify store and links it automatically. Nothing to copy or re-enter.
Everything stays in sync
Products and stock stay in agreement between Shopify and Celerp. Run purchase orders, receiving, accounting, and manufacturing in your own back office.
What syncs between Shopify and Celerp
Two-way sync keeps your store and your back office always in agreement.
Shopify orders pull into Celerp automatically. Stock is decremented, COGS is recorded.
Inventory changes in Celerp push back to Shopify. Your storefront always shows accurate availability.
Products sync by SKU. Manage variants, barcodes, and product details in one place.
Manage prices in Celerp and push to Shopify, or keep them separate. Your choice.
What you get beyond Shopify inventory
Celerp is a full ERP, not just a sync app. Everything Shopify leaves out is included.
- ✓ Multi-location inventory management
- ✓ Manufacturing and bill of materials (BOM)
- ✓ Lot tracking and batch numbers
- ✓ Expiration date tracking (FEFO)
- ✓ FIFO / FEFO costing
- ✓ Purchase orders and supplier management
- ✓ Full double-entry accounting
- ✓ CRM and customer records
- ✓ Invoicing and PDF documents
- ✓ AI operator for back-office queries
Celerp vs paid Shopify inventory apps
| Feature | Celerp | Katana | SKULabs | Cin7 |
|---|---|---|---|---|
| Monthly cost | ✓ $29/mo relay | $99/mo | $299/mo | $349/mo |
| Multi-location inventory | ✓ | ✓ | ✓ | ✓ |
| Manufacturing / BOM | ✓ | ✓ | ✗ | ✓ |
| Built-in accounting | ✓ | ✗ | ✗ | ✗ |
| Self-hosted / data ownership | ✓ | ✗ | ✗ | ✗ |
| Open-source modules | ✓ | ✗ | ✗ | ✗ |
One plan. Everything included.
The Celerp desktop app is free forever. The Connect plan ($29/mo) adds the Shopify sync connector, encrypted backups, and your public relay URL.
Shopify sync connector · Encrypted backup · Remote access · 14-day free trial
Get early accessJoin the waitlist for early access and beta pricing.
The Celerp desktop app is always free. The Connect plan is required for Shopify sync.
Frequently asked questions
Is Celerp really free?
Yes. The Celerp desktop app is free, with a source-available core and open-source MIT modules. The Connect plan ($29/mo) adds Shopify syncing, encrypted backups, and secure access from anywhere for you and your team.
Will this slow down my Shopify store?
No. Celerp runs on your machine, not on Shopify. Sync happens in the background via API. Your storefront is unaffected.
Where does my data live?
On your machine. Celerp is self-hosted. Your inventory, orders, and accounting data never touch our servers unless you enable encrypted backup (encrypted with your key).
What happens if I cancel Connect?
Your Celerp keeps running exactly as before. You lose Shopify syncing, encrypted backup, and remote access. Your data stays yours - export it or keep using Celerp offline.
How is this different from Cin7 or SKULabs?
Cin7 costs $349/mo, SKULabs costs $299/mo. Both are SaaS - you lose access if you stop paying. Celerp is free, self-hosted, and includes built-in accounting that those tools lack.
Get early access to the Shopify app
We're onboarding a small group of Shopify merchants to the Celerp beta. Add your email and we'll reach out with an early invite.
Your Shopify store deserves a real back office.
The Celerp app is free, with a source-available core and open-source MIT modules. The Shopify sync connector runs through the Celerp relay at $29/mo - still a fraction of what Cin7 ($349/mo) or SKULabs ($299/mo) charges.
Join the beta waitlist · Open-source modules · Self-hosted