How can we create instagram, whatsapp website and facebook website clones 

How can we create instagram, whatsapp website and facebook website clones what should we learn and use to create such amazing types of sites.

Languages

For creating such types of sites we should first have to learn web development you can either use mern or you can use HTML, CSS, JavaScipt, PHP and MySQL but make sure that you should have a basic and a little bit higher knowledge of JavaScript because it will play a big role to create such types of websites and if you are using php then also you should have a good knowledge of AJAX jQuery.

JSON or AJAX

You should also decide that what will you use between jQuery AJAX or JSON because for using an api and sending requests you must know how to use one of them atleast because for making an api request people either uses JSON or Ajax both of them have pros and cons but we will discuss about it in any other blog post. JSON is mostly used because it is better than AJAX but if you are using HTML, CSS, JavaScript, PHP and MySQL then you should use AJAX because you can use AJAX for making request in both JavaScript and PHP and it's syntax is easier compared to JSON.

Using an API 

Their are different types of websites which provide different types of api's and also provide documentation but there is a website which has api's in all categories this website is rapid api it also provide code snippet and provide three plans of api's free, freemium and premium. In free you can use the website's api for free only, in freemium you have different plans you have to subscribe one of the plan to use that api which is freemium and you can also use it for free by subscribing the basic plan which is completely free but remember you have to use your credit card or any other payment method for subscribing the basic plan ( pro - You don't have to use credit card for your first api you can subscribe the basic plan for free in the freemium plan ) and the last is the premium plan in which you have to pay monthly for using the api and there are also specific websites for different website like openweather which provides api's for weather forecasting but they have big pro that as these websites are specified for an api their documentation are far better than the rapid api's apis' documentation and that's why I recommend to use a website which is specified for an api.

Hosting 

For hosting such sites you can use firebase if you are a MERN developer and if you are a basic full stack web developer then you can use 000webhost which if from hostinger and provide a entry level hosting for hosting your sites and use it for testing but if you are using hosting then I will recommend that if you complete your project then only you should use hostinger to host your sites and if you are a mern developer then you should use firebase for website testing, optimization and api request speed while using an api it will help a lot.

Best site for learning using these types of api's for free.

I will recommend some youtube videos through which you will be able to use an api and add the api's content into your website. I have provided videos for both AJAX and JSON users special thanks and credits to Modern web and dev ninja.