how to download any website from internet and make changes in to to make your own website. How to download source code of any website: You can learn to download entire website code for offline use. This trick is for your learning purpose only. Using an paid template in commercial purpose without purchasing it, is illegal and unethical also. It’s simple to download html, CSS, JavaScript source code of any website free. You can get source code of entire website for learning purpose to study the code. Here I used a simple tool named wget, which is completely free to use.