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Tart is a free, standalone, CSS and markup tester with a built in editor.

Tart is a unique Web validator. It is a standalone application so validating local files with it is easy. It can validate CSS, XHTML (including embedded CSS), and Atom/RSS feeds. Finally, it has a built in editor so you can repair problems without changing applications.

What's New

Version 0.9.1:
  • This release adds HTML5 and CSS3 support and editor improvements.


Java 1.6 or later

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4 2


Current Version (0.x)


Downloads 2,681
Version Downloads 678
Type Development / HTML
License Free
Date 12 Nov 2011
Platform OS X / Intel 32
Price Free
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