Hi there,
I’d like to share you some good stuff to test your website or template, so if you have some good URLs that would be good to share you can post them here
Maybe you already know some of them but I thought it would be a good idea to gather them in one place.
Markup validators
Of course the markup validators from the W3C for HTML : http://validator.w3.org/ And for the CSS : http://jigsaw.w3.org/css-validator/
All-in-one chacker : http://uitest.com/en/check/
Resolutions
Checking in all main resolutions : http://viewlike.us/
This one takes shots of the URL you submit : http://browsershots.org/
The same dedicated to MAC : http://www.browsrcamp.com/
Also this one (for small screens & mobile phones) : http://www.browsercam.com/Default2.aspx
Browsers
Next one is dedicated to IE (yes and also IE5 .5!) : http://my-debugbar.com/wiki/IETester/HomePage
But if you don’t want to install a software for IE : http://ipinfo.info/netrenderer/index.php
How to run Firefox 2 & 3 : http://blog.codefront.net/2007/08/20/how-to-have-firefox-3-and-firefox-2-running-at-the-same-time/
Miscealeneous
Loading time : http://tools.pingdom.com/fpt/
Browser stats : http://www.w3counter.com/globalstats.php
And of course all Firefox plugins like firebug, webdeveloper, abduction, fireshot, etc…
Whats there to add? 
I used some of them, but there are some interesting new ones, thanks!
- Community Moderator
- United States
- Was featured in a podcast
- Attended a Community Meetup
- Author had a Free File of the Month
- Bought between 50 and 99 items
- Repeatedly Helped protect Envato Marketplaces against copyright violations
- Has been a member for 4-5 years
- Contributed a Tutorial to a Tuts+ Site
Don’t forget http://browserlab.adobe.com/index.html
Also, ie4osx (give it a goole) if you’re on a Mac 
Great thread idea, this should be useful to a lot of authors.
- Envato Staff
- Has been a member for 4-5 years
- Attended a Community Meetup
- Australia
- Beta Tester
- Contributed a Blog Post
- Contributed a Tutorial to a Tuts+ Site
- Repeatedly Helped protect Envato Marketplaces against copyright violations
- Sold between 5 000 and 10 000 dollars
This post at Nettuts+ might also be helpful: http://net.tutsplus.com/articles/web-roundups/13-ways-to-browser-test-and-validate-your-work/

Nice list. Does anyone know of a local host where you can change the php version? I sometimes find my wordpress themes have bugs in different versions which I can’t really test for.
@jremick good post !
@templateup what about movamp ? Just unzip and run, no installation. Or maybe I didn’t understand your request…
Thanks for this helpful post.
The firefox web developer toolbar has an easy way to test at different resolutions… amongst other things.
If your on windows: IE Collection
It let you run several IE as standalone 
Works with VMWare Fusion (I have it
)
If your on windows: IE Collection It let you run several IE as standaloneWorks with VMWare Fusion (I have it
)
LOL this pack contains IE1 .0 I should see that !
