A few links to resources to build your own website
FreeFrontEnd.com
Website with free stuff to add to your website, like this list of CSS loaders.
Unsplash
A database with thousands of great Creative Commons photos free to use on your website.
CodePen and jsFiddle
Both are quite good online editors to test some stuff in a clean environment and even share such example with other devs.
Json Formatter
When you need to check a JSON object with tabbing, collapsing and colors, this quick online tool really helps.
