Outgrown Squarespace or Wix? Signs and What Moving Involves

Squarespace and Wix are built so one person can launch a good-looking site without a developer. Many businesses never need more than that. Others reach a point where the site has to do something the builder doesn’t offer: calculate a quote, sync stock with a warehouse system, run a members area with its own rules, or apply a pricing rule at checkout. The quickest fix is an embed or a pasted script. Then another one, then a third-party service connected through Zapier, until several outside services each handle part of one job and nobody has a full record of how they fit together.

This guide covers the signs that a Squarespace or Wix site has outgrown its platform, when staying put is still the better choice, what each platform lets you export, and what a move to WordPress, Shopify or a custom build involves. It expands the Wix and Squarespace sections of our guide to website platforms you can start without code and extend later.

Every Squarespace and Wix fact here was checked against the Squarespace Help Center, the Wix Help Center and both platforms’ developer documentation on October 6, 2026. Both platforms change their plans and features often, so check the linked pages before making a decision.

Outgrowing Squarespace or Wix: key facts

Question	Answer
How many sites use Wix and Squarespace?	Wix runs 4.2% of all websites and Squarespace 2.4%, according to W3Techs. Among sites with a known CMS, that is 6.1% and 3.6%.
Can Squarespace run custom server-side code?	No. Squarespace’s help center says it “doesn’t support server-side code, including PHP, Ruby, Ruby on Rails, and SQL.” Custom code is limited to HTML, CSS and JavaScript in the browser, and checkout pages don’t accept code at all.
Can Wix run custom backend code?	Yes. Wix sites can run backend JavaScript in a Node.js environment that Wix hosts, within data and request quotas set by the site’s premium plan.
Can you export a whole Squarespace or Wix site?	No. Squarespace exports some content to a WordPress-format XML file. Wix sites can’t be hosted anywhere else, and Wix has no export for pages or blog posts.
What can you export from both?	Products, orders and contacts, as CSV files. Images can only be downloaded one at a time on Squarespace, or a folder selection at a time on Wix.
What happens to your search rankings when you move?	Old URLs break unless the new site redirects them. Keep the same domain and set up 301 redirects on the new platform, which tell search engines to pass each old page’s ranking to its new address.
When should you stay?	When the platform’s built-in features cover what the business needs, the custom code is small and documented, and the costs of staying are lower than the cost of a rebuild.

What are the signs you’ve outgrown Squarespace or Wix?

No single sign means you have to move. Several at once suggest the platform is costing more in workarounds than it saves in convenience.

Sign	What it looks like	Squarespace	Wix
Features depend on unsupported code	Pasted scripts and embeds that support won’t troubleshoot	Code injection on Core, Plus, Advanced and some legacy plans only; no code on checkout; no server-side code	Custom code snippets need a published site with a connected domain; Wix support won’t troubleshoot third-party code
Workarounds are stacking up	Several embeds, automation chains and spreadsheets doing one job	Code-based customizations “fall outside of the scope of Squarespace support”	Each embedded service loads from outside Wix’s servers
The developer tools can’t meet the need	Custom data, integrations, member rules or commerce logic	Commerce APIs for orders, products, inventory and contacts; Developer Platform for version 7.0 templates only	Backend code and a CMS, limited by plan quotas on data, requests and compute
Performance and SEO limits	Slow pages you can’t fix without removing features; redirect limits on large sites	Guidance to keep pages under 5 MB and 60 blocks; about 2,500 redirect lines	Third-party content Wix can’t optimize; 5,000 redirects per site
Plan and app costs keep rising	Upgrades bought for one feature, plus several paid apps or services	Code, APIs and lower transaction fees tied to higher plans	Data, compute and developer features tied to higher premium plans

Features depend on code the platform won’t support

On Squarespace, custom code goes into code injection fields, code blocks or the CSS editor. Code injection is available on the Core, Plus, Advanced and some legacy plans, and “Checkout pages don’t support code.” The custom code overview adds that JavaScript and iframes in code blocks also need one of those plans, and that browser code can’t call Squarespace’s APIs directly: “We don’t support CORS requests.” Any feature that needs a server, such as a quote calculator that checks live prices, has to run on a separate service you host and pay for elsewhere.

The support boundary is stated plainly. The code injection page says: “Our support team can’t help you add custom code to your site or troubleshoot issues that arise from using it.”

Squarespace does have a Developer Platform, but it only works on version 7.0 sites. It lets a developer build or modify a 7.0 template. It can’t be used to “Create or modify a custom 7.1 site,” “Access content added via the CMS” or “Add server-side custom code,” and a template in developer mode stops receiving template updates from Squarespace.

Wix goes further. Its developer docs describe a “Zero-setup backend” with “a fully supported Node.js environment,” JavaScript on both the frontend and the backend, and a CMS backed by MongoDB. Custom code on Wix was originally written with Velo APIs, and Wix now says “You can now use the JavaScript SDK to implement most functionality.”

Pasted snippets on Wix are a different matter. To use custom code snippets, the site must be published with a connected domain. Wix “does not provide support for technical issues with third-party code snippets,” snippets are deleted if you assign a different domain to the site, and tracking scripts like Google Analytics and Facebook pixels don’t work through custom code at all; Wix routes those through its marketing integrations instead.

The sign to watch for is a feature the business depends on that runs on code the platform explicitly won’t support, with no one on hand who understands it.

Workarounds are stacking up

Squarespace’s page on code-based customizations describes the usual pattern: copy a snippet from an outside service and paste it into a code block or the code injection panel. It also sets expectations: “we can’t guarantee their functionality or full compatibility with Squarespace.”

One or two of these is normal. The problem is accumulation:

• A booking widget from one service, a quote form from another and a members portal from a third, each with its own login and bill.
• Orders exported to a spreadsheet by hand, or through an automation chain, because the inventory system has no direct connection.
• Scripts in the site header that nobody can explain, kept because removing them might break something.
• Features that only work on desktop, because the embedded tool wasn’t built for the platform’s mobile layout.

Each workaround is a dependency on a service that can change its code, its pricing or its terms without regard to your site. If you need a document to explain how the site works, that is a strong sign it has outgrown its builder.

The developer tools can’t meet the need

Both platforms have developer tools. Whether they are enough depends on what the business needs.

Integrations. Squarespace’s commerce APIs cover orders, inventory, products, contacts, discounts, transactions and webhooks, enough for common jobs like syncing stock or sending orders to a fulfillment service. According to the API keys guide, the Orders, Inventory and Transactions APIs require the Core, Plus, Advanced or Commerce Advanced plan, and “It’s not possible to use the commerce API to connect a third-party payment processor.” Site orders can only be processed through Squarespace Payments, Stripe or PayPal, plus Square for in-person sales.

Custom data. Squarespace’s developer tools don’t include a database for your own data: its APIs cover commerce and contact records, and the Developer Platform can’t access CMS content. Wix does have one: CMS collections, the Wix Data API and connections to external databases. Those come with quotas. On a free Wix site, the limits are 1,000 collection items, 60 data writes and 60 backend requests per minute, and a 14-second backend request timeout. Premium plans raise them. When a site goes over the per-minute backend quota, Wix’s compute documentation says further requests in that minute “are blocked and you receive a 429 response code.”

Member areas. Squarespace Member Sites put pages behind free or paid memberships. Wix has site members, but its help center says members can’t be moved between sites “due to privacy concerns,” which matters if you ever rebuild. Membership rules that depend on your own data, such as access tied to a CRM record or an annual contract, need code the platform can’t host (Squarespace) or can host only within its quotas (Wix).

Commerce rules. Discounts, shipping and taxes on both platforms are configured through settings. When a rule doesn’t fit the settings, Squarespace has no way to add code to checkout. Wix lets developers extend its eCommerce features with backend code, which can cover more cases, but still inside Wix’s checkout and limits.

The sign here is a requirement that the documented tools can’t express, not just one that would take some work.

Performance and SEO limits

Both platforms publish performance guidance, and it’s worth following before deciding anything. Squarespace’s guide to reducing page size recommends keeping each page to 5 MB or less, with at most 60 blocks on a page and 50 images in a gallery. Wix’s performance best practices point out that content in third-party apps and iframes comes from outside servers: “This means Wix cannot optimize them and therefore they may create an overhead on your site’s loading time.” The guide recommends adding third-party code only where necessary. Wix’s Site Speed dashboard reports Core Web Vitals from real visitors.

If pages are still slow after following that guidance, and the cause is the embeds and scripts the business needs, the platform has become the bottleneck.

Redirect limits matter for larger sites. Squarespace’s URL mappings field holds 400 KB, “which is usually around 2500 redirect lines,” and image and file URLs can’t be redirected. Wix allows a maximum of 5,000 redirects per site, and 301 redirects only work with custom domains. A site with thousands of products or posts that restructures its URLs can hit those ceilings.

Plan upgrades and app costs keep climbing

On both platforms, developer features sit on higher plans. On Squarespace, code injection, JavaScript in code blocks and the commerce APIs need Core or above. Transaction fees also depend on the plan: on the plans Squarespace is currently rolling out, the commerce fee is 2% on Basic and 0% on Core, Plus and Advanced, while fees for digital products like courses and member sites are 7% on Basic, 5% on Core, 1% on Plus and 0% on Advanced. Payment processing rates are charged on top.

On Wix, the premium plan sets the data storage, request quotas, backend containers and developer tools a site gets, and Wix’s own developer docs suggest upgrading “to scale your site effectively and avoid hitting plan limitations.”

Upgrading for a feature is reasonable. The sign is when the yearly total of plan, transaction fees and paid apps or outside services approaches what a platform built for your needs would cost, and you still don’t have the feature you wanted.

When should you stay on Squarespace or Wix?

A move costs time and money, and feeling limited by a platform isn’t the same as needing to leave it. Staying is the better choice when:

• The built-in features cover the business. A portfolio, a service business site with booking, or a small store with straightforward shipping and discounts fits what these platforms are designed for.
• The custom code is small and documented. A few embeds you can list and explain are not a problem.
• Nobody wants to manage hosting. Both platforms host and maintain the site for you, and Wix lists security monitoring, automatic updates and a global CDN among the benefits of its hosted model. A self-hosted WordPress site needs someone to keep plugins and the server updated.
• The slow pages have a simpler fix. Compressing images, removing unused embeds and splitting long pages, as both platforms recommend, can solve the problem.
• The integration exists already. Check Squarespace Extensions or the Wix App Market before assuming a connection can’t be made.

Wix sites have one more option before a move: hiring a developer to build on Wix itself. Backend code, CMS collections, external database connections and Wix Headless, which lets a developer “build a custom frontend on any stack you choose” while keeping Wix’s business features behind it, can cover a lot. The trade-off from our platforms guide still applies: the code runs within the limits Wix sets, and moving off later means rebuilding it.

Squarespace has less room to grow in place. For a 7.1 site, the commerce APIs and an outside service you host are the main options.

What can you export from Squarespace and Wix?

Neither platform lets you take the whole site with you. Here is what each one exports, according to its own help center.

Content	Squarespace	Wix
Whole site to another host	No. Some content exports to an .xml file in WordPress format	No. Wix says its architecture “does not support external hosting”
Pages	Layout pages, text and image blocks; text from some other blocks with minimal structure. Store, index, portfolio and other page types don’t export	No page export
Blog posts	One blog page, with its posts and up to 1,000 comments per post; drafts don’t export	No export to other platforms; a developer can read posts through the Blog API
Images and media	No bulk export; images are downloaded individually through the Asset library	Select and download multiple files within a folder; no download of all media at once; free Wix media and Shutterstock media can’t be downloaded
Products	CSV of physical and service products, up to 10,000; excludes featured images, variant images, alt text, reviews and additional information	CSV of physical products, up to 5,000 rows per file; digital products don’t export
Orders	CSV, on all plans	CSV, with purchase times in UTC
Customers and contacts	Customer CSV with names, emails, order totals and last-used addresses; contacts CSV; notes don’t export	Contacts CSV (regular, Google or Outlook format), up to 50,000 at once
Member accounts	Customers appear in the customer export; the listed fields don’t include passwords	The member list can’t be exported, so members sign up again on the new site
Custom data	No equivalent; Squarespace’s APIs cover commerce and contact data	CMS collections export to CSV, including hidden and system fields
Redirects	Copy the URL mappings text	Export the redirect list as CSV
Design, styles and custom code	Style settings and custom CSS don’t export	Not exportable; the design is rebuilt

Sources: Squarespace’s Exporting your site, Import to and export from your site, Export products to a .csv, Export Commerce orders and Managing customers; Wix’s Exporting or Embedding Your Wix Site Elsewhere, Exporting Blog Posts to Other Platforms, Downloading Files from the Media Manager, Exporting Your Product List, Exporting Orders, Exporting Your Contacts, Moving Members from One Site to Another, Exporting Content from Your Collection and Importing or Exporting URL Redirects.

Squarespace’s WordPress export and images

Squarespace’s export is designed for WordPress, and its help page has a warning for self-hosted WordPress sites: with the WordPress Importer, “your images may not migrate with the rest of your content.” WordPress may only keep links to the images on Squarespace’s servers, and those links stop working when the Squarespace site is canceled. Squarespace suggests importing into WordPress.com, which copies the images, or downloading the images and uploading them yourself. Either way, check the media library on the new site before canceling the old one.

Moving a Wix blog without an export

Wix’s help center says: “Currently, it is not possible to export blog posts to other platforms.” For a small blog, copying posts by hand is manageable. For hundreds of posts, a developer can read them through Wix’s Blog API, which includes calls to list and query posts, and convert them for the new platform. Budget for that step if the blog matters to your search traffic.

What does moving off Squarespace or Wix involve?

A move is a rebuild of the site on a new platform, plus a transfer of the content and data that can be exported. The steps are similar from either platform.

1. List every URL. Squarespace’s own guide to site moves recommends recording the old site’s URLs in a spreadsheet and adding the new URL beside each one. Include pages, blog posts, products and categories, and note which pages get the most search traffic.
2. Export while the site is active. Squarespace can only export from an active, published site, not a trial, and content on an expired site may already be deleted. Export products, orders, customers and contacts as well as the site content, and download images.
3. Rebuild the design and features. Nothing about the layout, styles or custom code carries over. This is the time to replace embedded workarounds with features built into the new platform.
4. Import and check content. Compare counts of pages, posts, products and images between the old and new sites. Fix formatting that didn’t survive the import.
5. Set up 301 redirects on the new platform. A 301 redirect tells search engines a page has moved for good. Squarespace’s URL mappings and Wix’s redirect manager only work for domains connected to those platforms, so after the move the redirects have to live on the new site. URL patterns can differ between platforms; on Squarespace 7.1, for example, product URLs include /p/ before the product’s slug, and the new platform will have its own pattern.
6. Keep the domain. Squarespace recommends keeping your domain name, so existing links and search listings keep working. If the domain is registered with the platform, you can point it to the new host or transfer it. Squarespace domains keep auto-renewing after the website subscription is canceled. Wix sends an authorization code to transfer a domain away, and a business email on the domain needs its MX records added again after the transfer.
7. Launch, then request indexing. After switching the domain, request indexing in Google Search Console and Bing Webmaster Tools, as Squarespace suggests, and watch for 404 errors in the first few weeks.
8. Cancel last. Keep the old site’s subscription until the new site is live, the redirects work and every image is confirmed on the new host.

Customers with accounts will need to set new passwords on the new site, since neither platform’s exports include them. Tell them before launch.

Should you move to WordPress, Shopify or a custom build?

The right destination depends on what the site mainly does.

If the site is mainly	Consider	Why	What to plan for
Content: pages, a blog, resources, member content	WordPress	More than 70,000 plugins in the WordPress.org directory; custom features go in plugins that survive theme and core updates. Squarespace’s export is built for it	Hosting, updates and backups, by you or a managed host
An online store	Shopify	Built around commerce; apps and extensions handle custom store features without editing theme code	Some checkout customizations need Shopify Plus; app costs add up the same way
An application: custom data, logins, workflows	A custom build	Data and logic aren’t limited by a builder’s features or quotas	Higher build cost; you own the code and its maintenance
A Wix site that needs more logic	Developing on Wix	Backend code, CMS, external databases and Wix Headless without a migration	The code stays tied to Wix

WordPress runs 40.1% of all websites, per W3Techs, more than any other CMS W3Techs tracks. The important part is putting custom features in the right place; Plugin, Theme or functions.php? Where WordPress Code Belongs covers how that works.

For a site that is mainly a store, Shopify is built around commerce. Shopify Custom App, Public App or Theme Edits? Which to Use covers where custom store features belong and which ones need Shopify Plus.

A custom build makes sense when the website is really software, such as a customer portal or a booking system with business-specific rules. It costs the most up front and needs ongoing maintenance, so compare it with the cost of staying.

If you’re still choosing a first platform for a new site, free and low-cost ways to build a small business website covers the starting options.

When to bring in a developer

Start by listing what the site does, which parts rely on embeds or pasted code, and what each plan, fee and app costs per year. If the list shows a requirement the platform can’t meet, a developer can confirm what the current platform’s tools can still do, estimate a move, and plan the export, redirects and rebuild so the site doesn’t lose its search traffic.

If you’d like help, see custom WordPress plugins and themes and custom app development. The process and pricing are published, and you can get in touch to talk through what your site needs next.