How to save files in this apps? Like i want to save my image so i can use it as part of my web design ?

HTML files (HTML in your android phone folders in File Manager) You can make a new file and add your HTML file there and so the picture you will need: For example: +CREATE FOLDER (HTML FILES) +ADD FILES(Needed.png, Webdesign.html) You just need to do like src="Needed.png" You do not need to add a separate file for .js and css because you can directly inject them into HTML JavaScript: <script> </script> CSS: <style> </style>

how about html files? same as that i need a hmtl hosting site?

You can upload it to a image hosting site like postimg.org and use it from there.