Browsera is a web service that will help web developers and designers to discover website design & JavaScript Errors across multiple browsers.
Browsera is different from other cross-browser testing services,with the help of sophisticated algorithms Browsera analyzes your website across multiple browsers and detects unsightly layout issues and JavaScript Errors.It supports almost all webrowsers (from Firefox 2/3/3.5, Safari 3.2/4 to Internet Explorer 6/7/8,) except opera.The tests are performed in Firefox, Internet Explorer and Safari on both Windows and Linux OS.
Key Features:
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Browsera is available for Free , but it allows free users to test up to 25 pages.I think it is more than enough for normal bloggers. If you want to check out more features there are 3 paid plans which come with a 30-day free trial and a 100% money-back guarantee. If you cancel your account before that period , you will not be charged. Your can upgrade, downgrade, or cancel your plan anytime.
Link: www.browsera.com