DOM Inspector (DOMi) is a web developer tool created by
Joe Hewitt and was originally included in
Mozilla Application Suite
The Mozilla Application Suite (originally known as Mozilla, marketed as the Mozilla Suite) is a discontinued cross-platform integrated Internet suite. Its development was initiated by Netscape Communications Corporation, before their acquisition ...
as well as versions of
Mozilla Firefox prior to
Firefox 3. It is now
included in Firefox, and
SeaMonkey. Its main purpose is to inspect and edit the
Document Object Model (DOM) tree of
HTML
Hypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It defines the content and structure of web content. It is often assisted by technologies such as Cascading Style Sheets ( ...
and
XML
Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing data. It defines a set of rules for encoding electronic document, documents in a format that is both human-readable and Machine-r ...
-based documents.
A DOM node can be selected from the
tree structure, or by
clicking on the browser
chrome. As well as the DOM tree viewer, other viewers are also available, including Box Model,
XBL Bindings,
CSS Rules, Style Sheets, Computed Style,
JavaScript
JavaScript (), often abbreviated as JS, is a programming language and core technology of the World Wide Web, alongside HTML and CSS. Ninety-nine percent of websites use JavaScript on the client side for webpage behavior.
Web browsers have ...
Object, as well as a number of viewers for document and application accessibility. By default, the DOM Inspector highlights a newly selected non-attribute node with a red flashing border.
Similar tools exist in other browsers, e.g.,
Opera's Dragonfly
A dragonfly is a flying insect belonging to the infraorder Anisoptera below the order Odonata. About 3,000 extant species of dragonflies are known. Most are tropical, with fewer species in temperate regions. Loss of wetland habitat threat ...
,
Safari's Web Inspector, the
Internet Explorer Developer Toolbar, and
Google Chrome
Google Chrome is a web browser developed by Google. It was first released in 2008 for Microsoft Windows, built with free software components from Apple WebKit and Mozilla Firefox. Versions were later released for Linux, macOS, iOS, iPadOS, an ...
's Developer Tools.
See also
*
Firebug, another web development extension more recently created by Joe Hewitt
External links
DOM Inspector extension for FirefoxDOM Inspectorat
Mozilla Developer Center
XPather - A DOMi extension that adds XPath support
Software testing tools
Firefox
Firefox extensions merged to Firefox
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