Acid Tests is a test page from the Web Standards Project that checks how well a web browser follows certain web standards, especially relating to the Document Object Model and JavaScript. When successful, the latest Acid3 test displays a gradually increasing percentage counter with colored rectangles in the background. The percentage displayed is based on the number of sub-tests passed. In addition to these...

Every web developer knows a cross-browser nightmares. Ignoring W3C standards by some browser development companies leads to incorrect display of pages. You probably know that feeling when you have your web design almost done but flash look at your work in other browser scares you. To eliminate these annoyances you are welcome to use the Browsershots – an online tool for checking browser compatibility. Browsershots...

Imagine the situation: You’re designing/coding some web for one of your customers. You have an abstraction of the layout including pictures and other graphics but you’d need present your visualization to the customer. But what text you will use to represent real look of the page? Will you write some fairy tale to fulfil blocks of text or just simply write “Hello World” many times? No,...

As everyone knows, validity of source code plays important role in a web development. Improperly nested elements, unclosed tags, unrecognized parameters may affect web page’s display in some browsers. But this is not one and only negative influence of source code errors. Another important consequence of invalid (X)HTML or CSS source code is degradation in the eyes of search crawlers. Most search engine...

An Open Source vector graphics editor, with capabilities similar to Illustrator, CorelDraw, or Xara X, using the W3C standard Scalable Vector Graphics (SVG) file format. Inkscape supports many advanced SVG features (markers, clones, alpha blending, etc.) and great care is taken in designing a streamlined interface. It is very easy to edit nodes, perform complex path operations, trace bitmaps and much more....

Site-Perf.com gives you an accurate, realistic, and helpful estimation of your site’s loading speed. This on-line tool fully emulates natural browser behaviour downloading your page with all the images, CSS, JS and other files, just like a regular user. An output are nice graphs representing your site’s performance. This free tool is for performance-conscious webmasters who want a realistic look...