If you've outgrown Big Cartel and you're ready for a platform that can scale with your business, migrating to Shopify is one of the smartest moves you can make in 2026.
But switching platforms isn't as simple as flipping a switch — there's data to export, a new store to set up, and SEO equity to protect.
I've walked through this migration process step by step, and in this guide I'll show you exactly how to move your products, customers, orders, and content from Big Cartel to Shopify without losing traffic or breaking your store.
The entire migration breaks down into four major phases: preparation, exporting your Big Cartel data, importing and rebuilding in Shopify, then handling redirects and going live. Let's get into it.
Why Migrate from Big Cartel to Shopify?
Big Cartel is a solid platform for artists and makers running small shops. But once your catalog grows, or you need features like advanced inventory management, robust analytics, or third-party app integrations, its limitations start showing.
Here's a quick comparison of what you're working with:
| Aspect | Big Cartel | Shopify |
|---|---|---|
| Product management | Simpler catalog with limited variants and options | Robust variant system, automated collections, and advanced product rules |
| Apps & integrations | Limited third-party integrations | 6,000+ apps covering every aspect of ecommerce |
| Scalability | Best suited for small catalogs and indie sellers | Built for growing and high-volume brands |
| Data export/import | Fragmented exports requiring JSON workarounds | Native CSV import/export tools plus migration app support |
| SEO tools | Basic SEO capabilities | Built-in URL redirects, customizable meta fields, and SEO apps |
The app ecosystem alone is often reason enough to make the switch. But the real payoff comes from having a platform that won't hold you back as your business grows.
Phase 1: Planning and Pre-Migration Checklist
Skipping the planning stage is where most migration headaches start. Lost SEO rankings, broken product catalogs, and missing customer data are almost always the result of jumping in without a clear plan.
Define your migration scope
Start by listing everything you need to move: products (including variants and images), customers, order history, discount codes, content pages, blog posts, and your domain. Not everything will transfer automatically, so knowing the full scope upfront saves time later.
Audit your current Big Cartel store
Before you export anything, take stock of your current setup. Document your product structure (how many options and variants you use), custom pages, shipping rules, and any third-party tools or scripts you rely on. This audit becomes your migration roadmap.
Clean your data first
This step is easy to overlook and incredibly valuable. Fix messy product titles, standardize option names (don't have “Small,” “small,” and “S” as three different variants), fill in missing images, and fix broken URLs. Cleaning data in Big Cartel before export means less cleanup work in Shopify.
Plan your cutover timing
Choose a low-traffic window for the switch. Freeze any design or content changes on Big Cartel a few days before launch. Many merchants find it helpful to do a “soft launch” on Shopify first — keeping the store password-protected while they test everything — before making the DNS switch.
Phase 2: Exporting Data from Big Cartel
Here's the thing about Big Cartel: there's no single “export everything” button. You'll need to pull data from a few different places and combine the results. It's not difficult, but it does take some care.
Exporting products
You have two main approaches for getting product data out of Big Cartel.
Option A: Admin export. Depending on your plan, Big Cartel's admin tools may let you download a product CSV that includes titles, descriptions, prices, and sometimes image URLs. Check your account settings first — this is the cleanest route if it's available.
Option B: The JSON method. Navigate to yourstore.com/products.json in your browser. This downloads a JSON feed containing all your products. You'll then convert this JSON file to CSV using a spreadsheet tool or an online converter, and reshape the columns to match Shopify's product CSV format.
Whichever method you use, make sure you capture these key fields: handle (the URL slug), title, body/description, price, compare-at price, SKU, barcode, option names and values (size, color, etc.), variant prices, inventory quantities, and image URLs. These map directly to Shopify's product import template.
Exporting orders
Even though Shopify won't treat imported orders as “live” transactions, having your order history is critical for customer service and reporting.
In your Big Cartel admin, go to Orders, filter by Shipped or Unshipped as needed, then use the action menu to download or export the CSV. Save and archive these files — they're your historical record regardless of what you import into Shopify.
Exporting customers
Big Cartel doesn't maintain a standalone customer database the way Shopify does. Instead, customer information lives within order data.
To build a customer list, extract buyer emails and names from your order CSV exports. Then de-duplicate by email address in a spreadsheet. This gives you a clean customer list ready for Shopify's customer import tool.
Saving assets and content
Some things have to be saved manually. Download all your brand assets: logos, banners, lookbook photos, size charts, and any custom graphics stored in Big Cartel. Copy the text content from your About page, FAQ, policies, and any other custom pages into a document. You'll recreate these in Shopify later.
Phase 3: Importing and Rebuilding in Shopify
With your data exported and cleaned, it's time to set up your new Shopify store. You can handle imports manually with Shopify's built-in CSV tools, or use a dedicated migration app that pulls directly from Big Cartel.
Initial Shopify setup
Create your Shopify store and choose a plan (you can start with a free trial to get everything set up before paying). Before importing any data, configure your core settings: currencies, languages, shipping zones, tax rules, and your primary domain. Getting this groundwork done first prevents issues during import.
Importing products via CSV
This is the backbone of the migration. In your Shopify admin, go to Products → Import. Download Shopify's sample CSV from the import dialog — use this as your template to make sure your columns are formatted correctly.
Map your Big Cartel data into Shopify's required columns: Handle, Title, Body (HTML), Vendor, Type, Tags, Option1 Name/Value, Variant SKU, Variant Price, Variant Inventory Qty, Image Src, and so on. Upload the CSV, review the preview carefully, then complete the import.
Pro tip: If you have a large catalog or complex variants, test with a small sample CSV first (10–20 products). Verify that variants, images, and pricing come through correctly before importing your full catalog. Fixing a handful of test products is much easier than fixing hundreds.
Importing customers
Prepare your customer CSV with the standard fields: First Name, Last Name, Email, Company (if applicable), and address details. In Shopify, go to Customers → Import and upload the file.
One important note: some migration tools offer the ability to migrate customer passwords, which lets your existing customers log in without resetting. However, Big Cartel's simpler account model may limit how well this works in practice. Be prepared to send password reset emails to your customer base after launch.
Importing orders (optional)
Shopify doesn't natively support importing historical orders from a CSV into the main order system. You have two options here.
If preserving full order history in Shopify matters to your business (common for brands with warranties, B2B accounts, or subscription tracking), use a migration app like Cart2Cart or LitExtension. These tools recreate your Big Cartel orders in Shopify with the correct relationships to customers and products.
If budget is tight or your order history isn't business-critical inside Shopify, simply keep your Big Cartel order CSVs archived for reference and move forward without importing them.
Manual CSV vs. migration apps: which should you choose?
For stores with a small catalog (under 100 products) and simple structures, the manual CSV approach works perfectly well and costs nothing beyond your time.
For larger stores or merchants who need to migrate order history, customer passwords, blog content, and SEO URLs all at once, a dedicated migration tool is worth the investment.
Tools built specifically for the Big Cartel to Shopify path can handle products, categories, customers, orders, discounts, and blog posts in one go. Many also offer advanced options like preserving product IDs and automatically creating 301 redirects from your old URLs.
Phase 4: Rebuilding the Store Experience
Your data is in Shopify — now it's time to make the store look and feel right for your customers.
Theme and design
Head to Online Store → Themes to browse and install a Shopify theme. Customize your colors, typography, and layout sections to match (or improve on) your Big Cartel design. Shopify's Online Store 2.0 editor gives you significantly more control over page layouts than Big Cartel offers, so take advantage of it.
Recreate your homepage structure, collection pages, and any key landing pages using the theme editor. Then rebuild your content pages (About, Contact, FAQ, shipping policies) under Online Store → Pages.
Navigation and collections
Set up your main menu and footer navigation to mirror your Big Cartel structure where it still makes sense. In many cases, you'll want to improve on the original rather than replicate it exactly.
Build collections (manual or automated) based on tags, product types, or vendors. Collections in Shopify are more powerful than Big Cartel's basic category system — use automated rules to keep products organized without manual effort as your catalog grows.
Apps and integrations
This is often the main reason merchants migrate to Shopify in the first place. Install apps for the features your business needs: product reviews, email marketing, upsells, advanced search, translations, and shipping label printing. Replace any Big Cartel-specific integrations with their Shopify equivalents — or take advantage of native Shopify features that eliminate the need for a separate tool entirely.
Payments, shipping, and taxes
Activate Shopify Payments (where available in your region) or connect your preferred payment gateway. Configure shipping profiles and rates to match your current rules. Double-check that tax settings comply with your applicable regions (EU VAT, US state sales tax, etc.).
Before moving on, run a complete test transaction from browsing to checkout to confirmation email. This catches payment, shipping, and tax issues before real customers do.
Phase 5: Domains, Redirects, and SEO Protection
This is the phase that determines whether you keep your organic search traffic or start from scratch. Handle it carefully.
Connecting your domain
If your custom domain currently points to Big Cartel, you need to update it to point to Shopify. You have two paths:
Full transfer: Unlock the domain at your current registrar, get the authorization/EPP code, and transfer the domain to Shopify so everything is managed in one place.
DNS update only: Keep the domain with your current registrar and update the A record and CNAME record to point to Shopify's servers. This is faster and avoids any transfer downtime.
Either way, DNS propagation can take up to 48 hours. Schedule this during off-peak hours and have your Big Cartel store remain accessible until the switch is complete.
Setting up 301 redirects
This is non-negotiable for SEO. Shopify's URL structure differs from Big Cartel's, so every old URL needs to redirect to its new equivalent.
Map your old Big Cartel URLs (products, categories, pages) to the corresponding new Shopify URLs. Here's an example of what that looks like:
| Old Big Cartel URL | New Shopify URL |
|---|---|
/product/vintage-tee | /products/vintage-tee |
/category/shirts | /collections/shirts |
/about | /pages/about |
/faq | /pages/faq |
In Shopify, add these redirects under Online Store → Navigation → View URL Redirects. For stores with many URLs, use a bulk import via CSV or a specialist redirect app. If you used a migration tool, check whether it created 301 redirects automatically — many of them do.
Final QA checklist
Run through a structured quality check before removing your store's password protection:
- Catalog check: Browse products and verify images, prices, variant options, and inventory counts are correct.
- Checkout test: Complete a full purchase on both desktop and mobile. Confirm shipping rates, taxes, discount codes, and confirmation emails all work.
- Analytics verification: Ensure Shopify analytics, Google Analytics 4, Meta Pixel, and any other tracking tools are firing correctly.
- Redirect testing: Manually test a sample of your 301 redirects to confirm old URLs land on the right pages.
- Content review: Read through every page, menu link, and footer to catch broken links or missing content.
Go live
Once your DNS is pointed, tests are passing, and redirects are in place, remove the password protection on your Shopify store. Announce the new store to your audience via email and social media — highlight any new features or improvements they'll notice (faster checkout, new products, better mobile experience).
For the first few weeks after launch, monitor Google Search Console closely for 404 errors and crawl issues. Watch your analytics for traffic drops that might indicate missing redirects. Fix any issues quickly — the faster you catch redirect gaps, the less SEO impact you'll see.
Common Pitfalls to Avoid
Skipping the data cleanup. Importing messy data from Big Cartel means messy data in Shopify. Always clean before you export.
Forgetting 301 redirects. This is the single biggest SEO mistake in platform migrations. Every indexed URL on your old site needs a redirect to its equivalent on Shopify.
Not testing with a sample CSV first. A full product import gone wrong is painful to undo. Always test with a small batch before committing your entire catalog.
Ignoring mobile checkout. Test the full purchase flow on mobile devices, not just desktop. A significant portion of your customers are shopping on their phones.
Rushing the DNS switch. Don't update your domain records until your Shopify store is fully built, tested, and ready. Propagation takes time, and there's no undo button.
DIY vs. Hiring a Migration Agency
If your store has fewer than 100 products, straightforward variants, and you're comfortable working with CSV files, doing the migration yourself is entirely feasible. Budget a weekend for the process and follow this guide step by step.
For stores with large catalogs, complex product structures, significant order history that needs to be preserved, or heavy reliance on custom functionality, hiring a migration specialist or using a professional service can save significant time and reduce risk. The cost is usually justified by the time savings and the peace of mind that your data and SEO are handled correctly.
Wrapping Up
Migrating from Big Cartel to Shopify is a meaningful upgrade for any ecommerce business that's ready to grow. The process takes some careful planning and execution, but the result is a store built on a platform that can handle whatever comes next — more products, more traffic, more sales channels, and more automation.
Take it phase by phase, test thoroughly before going live, and don't skip the redirects. Your future self (and your search rankings) will thank you.
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