23 Freebies Help you Design
A Wonderful Website
A web designer needs to do a repetitive work. Following web apps and tools make life easier for a web designer.
Helps you design intuitive wire frames for your web site. It requires you to install its nodejs package. You must be familiar with nodeJS, grunt etc.
2. Marvel App
Prototype your Web or Mobile App. Although it is commercial, basic subscription is free.
Perhaps the most popular Web (HTML, CSS & JS) framework and the best way to start with. To learn about bootstarp you can check at W3Schools BootStrap Basic Course
Instead of bootstrap you may start with HTML5 Boilerplate. It provides a front-end kick start template and basic server configurations. Want to customize it and add bootstrap, you may try Initialzr - a HTML5 templates generator.