For some time now, I’m a big fan of the Window Size Bookmarklet by Joss Crowcroft. This bookmarklet allows you to display the X/Y size of the viewport in the left corner of your browser. It can be very useful for debugging some CSS3 media queries.
When I came across on responsive.is, I said to myself: “Victor, you must write your own bookmarklet which mix both features.”
I mean a bookmarklet which allows to display the size of the viewport and some buttons to change the viewport to smartphone/tablet size automatically.
After some time of use, I thought this bookmarklet could be useful for others. So, I decided to share my code on github and publish the bookmarklet for designers and developers.
I’m aware that my bookmarklet isn’t lightweight and compliant like “Window Size” but I made it firstly for my personal use. I don’t use Internet Explorer, and I prefer to have something more designed (but minimalistic)
Anyway, don’t be afraid, because it stays light and ready to use for a daily work.
You can grab the bookmarklet here.