The simple answer for the question can sites like Wix replace CMS like WordPress is No. But still, it is important to note that whether Wix can replace a CMS like WordPress depends on your specific needs and goals. 

Let's explore some key points to consider in this regard.

Ease of Use and work: When we talk about Wix then it is known for the simplest user interface and drag and drop techniques for website making. WordPress, while also user-friendly, might require a bit more familiarity with its dashboard and settings.

Customization and Flexibility: WordPress offers a high degree of customization and flexibility, allowing you to create complex websites and applications. On the other hand, when we talk about Wix then it also comes with options to customize the layout but there is no doubts that it has many limitations too.

Scalability: WordPress is often chosen for larger websites, blogs, e-commerce stores, and even complex web applications. It can handle substantial traffic and content. Wix, on the other hand, might have limitations when it comes to handling large-scale or complex projects.

Extensions and Plugins: WordPress has many free plug-ins to extend the functionality of the website you are working on. But Wix has limited free plug-ins for the users. 

Hosting and Ownership: Wix is an all-in-one platform that includes hosting, which can simplify the setup process. With WordPress, you need to choose your own hosting provider and manage your site's hosting environment, which gives you more control but also more responsibility.

SEO and Performance: WordPress is well-known for its SEO capabilities and performance optimization options. While Wix has improved in these areas, WordPress still provides more granular control over SEO settings and performance optimization.

Cost: Wix's pricing is straightforward, as it bundles hosting and website builder tools. WordPress is  no doubt an open source CMS and cost you nothing. Just you need to pay for the hosting and domain.

Data Portability: With WordPress, you have full control over your website's data and can migrate it to different hosting providers or platforms. Wix might have limitations when it comes to exporting your data.

In summary, if you are a small business or a marketer then going with Wix can be a suitable choice for you while for big websites projects, WordPress is a preferable choice to make. WordPress is a more versatile solution that's capable of handling larger, more complex projects with specific requirements. If you want to learn how to work with WordPress and develop your website then you can go for Advance WordPress Course from the Web Development Institute in Delhi. WDI has more than 50 web development courses in Rohini to join for learning aspirants who are looking for career in the web arena.