Wirify is a bookmarklet that lets you turn any web page into a wireframe in one click. Wirify is free, easy and fun to use.
Fount will tell you which web font in your font-stack you are actually seeing – not just what is supposed to be seen. It’ll also tell you the font size, weight, and style. After adding the bookmark:
Viewport resizer is a browser-based tool to test any website’s responsiveness. Just save the bookmarklet, go to the page you want to test, click on your created bookmarklet and check all kinds of screen resolutions of the page.
DOM Monster is a cross-platform, cross-browser bookmarklet that will analyze the DOM & other features of the page you’re on, and give you its bill of health.
This bookmarklet lets you preview all those background patterns directly on your website very quickly. This makes selecting a background for your website even easier!
MIN is a bookmarklet that will strip any decoration from a site. All color, borders and backgrounds are removed instantly, helping you identify the successful and unsuccessful uses of typography and layout.
A super-simple bookmarklet for designers that finally puts you back in control of your website’s typography.