Migrate from GemPages to Fudge AI

Key takeaways

• Migration follows a standard sequence: inventory pages, share each URL with Fudge, rebuild on a dev theme, test, publish to live (same URL), then uninstall GemPages. No new slugs, no redirects.
• The structural reason teams migrate is output ownership and page speed. GemPages pages render through the app’s runtime. Fudge writes native theme code.
• Don’t migrate during a sales push. Pick a calm two- to four-week window with no major campaigns running.
• Allow 1-2 hours per page for the rebuild plus QA, faster once brand context is loaded into Fudge.

This guide covers moving from GemPages to Fudge AI on a live Shopify store. The goal: every page becomes part of your theme, with no app runtime on customer page loads.

GemPages is a capable drag-and-drop builder. Teams move for structural reasons (page survives uninstall, no runtime JavaScript) rather than because GemPages was failing them.

Why you can trust us

Four years inside Shopify, dozens of migrations completed across GemPages, PageFly, Replo, Shogun, and homegrown builders. We build Fudge - the AI agent on the other side of this migration. See GemPages vs Fudge for the broader strategic comparison.

The sequence

1. Inventory. List every live GemPages page with URL, purpose, traffic, and active ad-spend status. Group by priority.
2. Pick a starting page. Choose a medium-priority page (not a high-traffic ad LP) for the first migration cycle.
3. Rebuild in Fudge. Paste the live GemPages URL into Fudge. It reads the page and regenerates it as native theme code on an unpublished dev theme at the same URL. Iterate with prompts: “shorter hero”, “swap in UGC”, “add sticky ATC”.
4. Test on a development theme. Lighthouse Mobile (target LCP < 2.5s, INP < 200ms, CLS < 0.1). Add-to-cart through to checkout. Slow-4G simulation.
5. Publish to live. The URL doesn’t change — your theme code now serves the slug instead of the GemPages runtime. Fudge takes over the slug automatically; no need to unpublish in GemPages first, no 301 redirects.
6. Watch for 24-48 hours. Confirm conversion rate holds in analytics and ad-platform reporting.
7. Repeat in priority order. 2-5 pages per week is a healthy cadence.
8. Uninstall GemPages. Only after every page is migrated and theme.liquid is clean of GemPages script/CSS imports.

The two friction points to watch

Sections that don’t map cleanly

If your GemPages page uses a block type that doesn’t have a direct Fudge equivalent (GemPages “GP Form” with custom field logic, for example), you have three options:

• Rebuild the block in Fudge with a simpler equivalent
• Re-implement it as a custom theme section with developer help (Fudge can scaffold)
• Use Shopify’s native form / form-builder app outside the page builder

Most legacy GemPages blocks have closer Fudge equivalents than they look.

Tracking and pixel events

Verify that your tracking (GA4, Meta Pixel, Klaviyo Active on Site) still fires on the new Fudge pages. Most stores have site-wide pixels in theme.liquid so this carries over automatically - but it’s worth confirming on the first migrated page before doing the rest.

What’s different about Fudge vs GemPages

• Output. Fudge writes Liquid + CSS + HTML into your theme. GemPages renders the page through its runtime on every customer visit.
• Survives uninstall. Fudge pages stay when the app is gone. GemPages pages typically revert to a Shopify default page or 404.
• Page speed. Fudge adds no runtime JavaScript. GemPages-rendered pages load via the app’s runtime.
• Workflow. Fudge is prompt-driven; GemPages is drag-and-drop. Different muscle memory.

For the wider context see best Shopify page builders, AI vs drag-and-drop, and best AI page builders for Shopify.

For migrations from other tools: PageFly to Fudge, Replo to Fudge, and Instant to Fudge. If you’re an agency comparing tools across clients, see Best Shopify page builder for agencies.

FAQ

Will I lose SEO ranking when I migrate from GemPages to Fudge?

No — the page stays at the same URL. You’re swapping the renderer (GemPages runtime → your theme code), not the URL. As long as the content remains substantively similar, there’s no ranking transfer to worry about.

Can I run GemPages and Fudge simultaneously?

Yes, during migration. After every page is moved, uninstall GemPages to recover the page-speed cost.

How long does the migration take?

For a 10-20 page catalogue, plan 3-6 weeks at 2-5 pages per week. Larger catalogues scale linearly. The bottleneck is QA bandwidth, not building speed.

Do I need to migrate everything before uninstalling?

Yes, or you’ll break the un-migrated pages. Migrate or deliberately archive every live GemPages page before uninstalling the app. Migrated pages are unaffected — they’re already theme code at the same URL.

What if a complex GemPages page doesn’t translate cleanly?

Three options: rebuild simpler, build as a custom theme section (Fudge can scaffold), or keep GemPages for that single page while migrating everything else. Most blocks have closer Fudge equivalents than they appear.