Free Website Tools
Free Website Tools

To find out all you have to do is go to HTML5 Test and you’ll get a score up to 300 to see how well your browser supports HTML5. Your browser will be rated on specifications like user interaction, like drag and drop, storage handling and geolocation. Apart from the main HTML5 specification and others created by the W3C HTML Working Group, this test also awards points for supporting related drafts and specifications.

If you have large documents on your site (incl. books), and you don’t want to make them available as a separate download, you could have them displayed in a browser instead. FlexPaper is an open source web based document viewer that uses Flash. It is delivered both as a stand alone flash application and as a Flex (SWC) library, so it can be integrated it into your application in different ways. Examples and use of FlexPaper.

Download all links and images on a webpage at the same time with DownThemAll, a Firefox extension. You can refine your downloads by fully customizable criteria to get only what you really want. It features an advanced accelerator that increases download speed up to 400%. You can also pause and resume downloads at any time.

Google recently announced the importance of load speed when it comes to ranking websites. Measure how fast your site loads with Yahoo!’s YSlow Firefox add-on. Not only does it measure the tim eit takes for your site to load, it will also offer suggestions on how to optimize your site for faster loading speeds.

Does your screen capture program only capture selected parts of the page, have too many features to be practical, or is it too slow? Pearl Crescent Page Saver is an extension for Firefox that lets you capture images of web pages, including Flash content. The great thing about this add-on is that you can choose to capture the whole page, the visible portion only, a frame, or a selection of a window with just one click. It works in PNG or JPG and you can scale captured images to any desired percentage.

One of the best add-ons for web developers is Firebug. Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page.

Checking links one by one for the nofollow attribute is tedious. NoDoFollow (by Zachary Fox)shows which links on a page have the nofollow attribute and which are regular follow links.

Create screen shots for dozens of different browsers, including Linux, WIndows and Mac browsers at BrowserShots. The amount of browsers they support is impressive, which also means it takes a couple of minutes to show the results.

When you are designing sites in Firefox, it is really tedious to check every single modification in Internet Explorer. You can use the IE Tab add-on to show you from within Firefox how your pages will look in IE.

The Web Developer’s Toolbox for Firefox offers some of the most popular add-ons for Firefox. The add-ons for web designers and developers will let you troubleshoot, edit, and debug web projects without ever clicking away from Firefox.