CSS Peeper is a Chrome extension designed for designers. Inspect the CSS of a web page very easily and get all the info you want: fonts, colors, line height, button size, CSS Peeper hides nothing from you.
DataFairy is a fake profile generator (surname, first name, age, email, password etc.). It is possible to export profiles in CSV. Ideal for your models or prototypes.
ThemeForest is a platform that allows you to buy Wordpress themes, HTML or Photoshop templates. If the themes are paid, it is a real source of inspiration for your sites.
In the same line as Blob Maker, Get Waves is a free SVG "wave" generator to create separators in your web projects. Choose a curve, more or less angular, then download or copy the code.
CodePen allows you to create, test and share code online (HTML/CSS/JS). It is the essential tool for web designers and integrators who wish to find inspiration.