What Wix does well
Wix is the most accessible website builder on the market. The visual editor requires no technical knowledge. Templates are polished and responsive. Hosting, SSL, and domain management are handled automatically. For a business that needs a professional web presence and nothing else, Wix delivers that job quickly and at low cost.
Wix also offers Welo, a JavaScript-based development environment for building more dynamic pages. Welo gives frontend developers a scripting layer that can interact with Wix's built-in database collections via a structured API.
For what it is designed for, Wix is a good product.
Where Wix hits the wall for business applications
Wix is a hosted platform. Wix controls the server. You do not.
When you write backend code in Welo, it runs inside a sandboxed JavaScript environment on Wix's infrastructure. You can read and write to Wix's collections API. You cannot access a raw database with SQL queries. You cannot install Node.js packages outside Wix's approved list. You cannot run PHP. You cannot run scheduled processes with direct system access. You cannot connect to an external database. You cannot write to a file system you own.
Wix Velo documentation states: "Wix apps use Wix's built-in databases and cannot connect to external databases directly." All data stored in Wix Collections lives on Wix's servers. There is no SQL access, no schema migration path, and no way to join Wix data to an external system at the database level.
This matters the moment your application needs to do anything a marketing website does not. Complex relational queries. Background jobs that run on a schedule. Integration with a server-side authentication flow you control. Custom business logic that spans multiple database tables. All of this requires direct infrastructure access that Wix does not provide.
You can build a contact form on Wix. You cannot build a job application tracker, a CRM, an inventory system, or a staff directory with role-based permissions. Not because Wix is poorly made. Because those applications require a server you control, and Wix's architecture does not give you one.
What WordPress provides that Wix does not
A self-hosted WordPress install runs on a server you choose, own, and control. The database is MySQL and you have full SQL access. The runtime is PHP, a server-side language with decades of library support. The file system is yours. You can install any package. You can run scheduled tasks (cron jobs). You can connect to any external system.
- Wix's infrastructure, Wix's servers
- JavaScript only (Velo/Welo sandbox)
- Data in Wix Collections, no SQL access
- No external database connections
- No custom server-side packages
- No scheduled background processes
- Data export limited to supported formats
- Platform risk: Wix controls pricing and availability
- Your server, your infrastructure
- PHP runtime with full package access
- MySQL with direct SQL access
- Connect to any external database or API
- Install any server-side package
- Full cron job support
- Your data is yours, fully portable
- GPL licence — no kill switch, no vendor risk
WordPress does not give you a drag-and-drop website editor as polished as Wix's. For a marketing website with no custom logic, Wix is faster to set up.
For a business application with custom logic, relational data, and server-side processing — WordPress is the only option between the two. There is no version of Wix that gets you there.
Why this is the deployment question, not the website question
Most businesses that ask this question are not choosing between two websites. They already have a website on Wix. They are asking: where do I put a business application?
The answer is not Wix. Wix's own documentation is clear that its backend infrastructure is sandboxed and restricted to Wix's ecosystem.
WordPress is the answer because it is already the most deployed server-side application platform on the internet. 42% of all websites run on it. Every install comes with a real server, a real database, and a real authentication system. Those installs are running on a fraction of their capacity.
The infrastructure that can run a business application is already installed at massive scale. It just hasn't been used for that yet.
Merebase builds custom business apps as WordPress plugins. They install on an existing WordPress site in under five minutes. They run on the server the business already controls. The data stays in the database the business already owns. There is no new hosting account, no new monthly subscription, and no new login to manage.
A Merebase app does not require you to move your website off Wix. The app runs on a separate WordPress install — most basic shared hosting plans start at A$5 to A$20 a month. Your Wix marketing site stays exactly where it is. The app runs on the WordPress install with its own domain or subdomain.
You get the marketing site Wix does well, and the business application infrastructure WordPress provides. They do not need to be the same server.