How to Migrate a Website from Wix to Custom Development
A Wix site can carry a business for years. Then the limits show up, usually all at once: a form that cannot behave the way sales needs, a page layout that fights the brand, a checkout or booking flow that works only until the next change. That is where how to migrate a website from Wix to custom development stops being a technical phrase and becomes a business decision with deadlines, pages, and consequences.
The move is not only about code. It is about deciding which parts of the current Wix site still earn their place, which parts need a rewrite, and which parts should be retired without apology. A 12-page brochure site, a lead-gen site with 4 forms, or a content-heavy property with 200 blog posts will each need a different migration path, even if the end result is still called a “custom site.”
Define the migration scope and business goals
Start with a narrow question: what does “custom development” mean here? For one project, it means replacing the Wix front end while keeping the content structure familiar. For another, it means changing the site into a fully custom system with its own content models, admin rules, and integrations. If that answer is fuzzy, the migration will drift.
Write down the launch target in concrete terms. A common example is “keep the 20 highest-traffic pages, rebuild the booking funnel, preserve all lead forms, and improve mobile performance on the home page and service pages.” That kind of statement is useful because it can be checked. “Make it better” cannot. If the team cannot point to 3 measurable outcomes, the scope is still too vague.
The business goal matters as much as the build plan. A marketing site might need faster editing for the team, while a sales-led site may care more about cleaner lead routing and fewer abandoned forms. If the current Wix site is already supporting a corporate website structure, the custom build should respect the same business priorities before it tries to reinvent them.
Ask one practical question before anything else: what happens if launch slips by 2 weeks? That answer reveals whether the migration is driven by urgency, a campaign date, or a platform ceiling. It also shows who will feel the pain first.
Inventory the Wix site’s dependencies
Make a full inventory of what the Wix site actually does. Do not stop at pages. List forms, automations, booking flows, email captures, chat tools, embeds, member logins, hidden landing pages, multilingual content, and any widgets that only exist because someone added them in a hurry last year. Wix makes it easy to add features quickly; the problem is that those features are easy to forget later.
There are usually dependencies that look small but create the most work. A newsletter signup may send data to 2 different systems. A booking page may trigger an email, a calendar event, and a CRM record. A single embedded calculator may depend on script behavior that custom development must rebuild from scratch. This is the point where careful review is not a formality. It is a warning label.
List the dependencies in a simple table before the migration moves forward.
| Wix feature | Current purpose | Replacement plan | Owner |
|---|---|---|---|
| Lead form | Collects inquiries from 6 pages | Custom form with CRM handoff | Marketing |
| Booking flow | Schedules consultations | Custom scheduling module or external tool | Operations |
| Widget embed | Shows pricing calculator | Rebuilt component | Development |
| Email capture | Feeds campaign list | New integration path | Marketing |
Remember mobile behavior too. A widget that looks fine on desktop can break on a 390-pixel screen. That one detail can affect a whole migration schedule.
Decide what to preserve, rewrite, or retire
Every migration needs a triage list with 3 columns: keep, improve, remove. This is where the team stops treating every page as sacred. A Wix site often contains legacy copy, duplicated landing pages, seasonal promotions, and old CTAs that no longer match the current offer. Keeping all of it just because it exists is how migrations get bloated.
Use business evidence, not sentiment. A page that gets 1,000 visits a month and drives leads deserves a different treatment from a page that has not been opened since 2022. A FAQ block that answers real objections can be kept and cleaned up. A pop-up written for an old campaign should probably go. If a feature adds friction and has no measurable value, retire it.
Rewriting is for elements that still matter but do not work well enough. That might mean the home page hero, a pricing comparison section, or a contact form with too many fields. Preserving is for content and behavior that already work. Retiring is for anything with no current job. Simple. Hard, too.
This is also the stage where teams often notice how much of the Wix site was built around workarounds instead of design intent. A custom build should not copy every workaround. It should keep the useful 20% and leave the rest behind.
Plan the content migration workflow
Content migration needs its own workflow, not a side note in a spreadsheet. Start with page copy, then media, then blog posts, then downloads. The order matters because copy often changes during review, and images should not be imported before someone confirms the final file list. A migration that imports stale content first will waste time twice.
Break the content into batches. For example, a 50-page site may be migrated in groups of 10 pages, each group reviewed before the next one starts. That gives the content team a chance to catch missing images, broken links, and old CTAs early. It also reduces the risk of duplicating content that no longer belongs on the site.
Clean up the source material before import. Remove old PDFs, check image dimensions, and rewrite page titles where needed. If blog posts are involved, decide whether every post moves or only the ones that still support traffic and brand authority. A content-heavy migration often pairs well with broader work such as a content portal on investing, where structure and editorial hygiene affect the whole product.
Do not copy the export blindly. Wix content often includes formatting quirks that look harmless in the editor and ugly in the new site. One extra line break is enough to make a page feel unfinished.
Translate Wix interactions into custom requirements
The hardest part of how to migrate a website from Wix to custom development is often not the content. It is the behavior. Wix interactions can hide in animations, lightboxes, member areas, tab switches, accordions, filters, and lead forms. A developer cannot rebuild “the same feeling” unless the behavior is written down clearly.
Turn each interaction into a functional requirement. For a lead form, specify field names, validation rules, error states, success messages, spam protection, and what should happen after submit. For a lightbox, say when it opens, how it closes, whether it must appear on mobile, and whether the overlay blocks page scroll. That level of detail saves time later, especially when the feature must connect to something like an email, SMS & push messaging flow.
Animations deserve the same treatment. If a section fades in after 200 milliseconds, write that down. If a member area hides content until login, specify the access rules and the user states. If a pricing table changes by country or plan, define the logic. “Make it work like Wix” is not enough. Developers need behavior in steps, not guesses.
One practical trick: record short screen videos of the current Wix site. A 90-second clip can capture more behavior than a long call. That matters when 3 people remember the feature differently.
Set up URL, redirect, and analytics handoff
URL planning should start before design is finished. List the current URLs, map the new ones, and mark which pages must keep their existing addresses. If a slug changes, the redirect must be defined early, not after launch. A site with 80 pages and only 12 redirected paths may look tidy in the spreadsheet and still lose traffic if the important routes are missed.
Search continuity is not magic. It is work. Redirect chains should be checked, old pages should point to the right new destination, and internal links should be updated so the custom site does not depend on redirects forever. If the old Wix site has been indexed for years, that history must be handled carefully. A migration like this can also affect website security and tracking, so permissions and script changes should be reviewed together rather than one after the other.
Analytics handoff needs the same attention. Define which events matter: form submit, booking start, booking complete, download click, phone click, and maybe scroll depth on key pages. Decide where each event is sent and who can verify it. If the team uses a tool similar to a website analytics & monitoring platform, the new build should feed it clean data from day one.
Document every SEO and analytics assumption that cannot be checked from source documents. That includes tags, conversion goals, and any legacy code snippet that no one remembers adding. Better to confirm once than to lose a month of data.
Prepare launch, QA, and rollback checkpoints
Launch day needs checkpoints, not optimism. The QA list should cover desktop and mobile, major browsers, content accuracy, form delivery, broken links, redirect behavior, and page speed on the most visited templates. Test the site on at least 2 screen sizes per template, or the team will miss a problem that appears only on a small display.
Run form testing with real submissions. A contact form that looks correct can still fail if the email routing is wrong, the spam filter is too strict, or the success message never appears. Test every critical path before launch, then test them again after the domain points to the new site. That second test catches surprises caused by live configuration, and surprises tend to arrive late.
Prepare a rollback checkpoint before launch, not after. If the custom site has a serious issue, the team should know whether to revert DNS, disable a release, or restore a previous build. A rollback plan is not dramatic. It is calm preparation. For sites with recurring support needs, the handoff should include website support after launch so fixes do not become panic work on day 3.
Before the final go-live, check 3 things in one pass: page content, form delivery, and analytics events. Then check them again after launch from a phone. The phone test catches the awkward details.
One last point: if the old Wix site includes a private area, a booking rule set, or restricted access tied to a larger system, the launch plan should also account for access control and data flow, because a visible page can pass QA while the connected process fails behind the scenes. That failure can be harder to spot than a broken button, and more expensive to fix once customers are already using the new site.
