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 Mozilla Firefox 3.0 is a version of the Firefox web browser released on June 17, 2008, by the Mozilla Corporation. Firefox 3.0 uses version 1.9 of the Gecko layout engine for displaying web pages. This version fixes many bugs, improves standard ...

. It is now included in Firefox, and

SeaMonkey SeaMonkey is a free and open-source Internet suite. It is the continuation of the former Mozilla Application Suite, based on the same source code, which itself grew out of Netscape Communicator and formed the base of Netscape 6 and Netscape 7. ...

. Its main purpose is to inspect and edit the

Document Object Model The Document Object Model (DOM) is a cross-platform and language-independent interface that treats an XML or HTML document as a tree structure wherein each node is an object representing a part of the document. The DOM represents a document wi ...

(DOM) tree of

HTML The HyperText Markup Language or HTML is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScri ...

and

XML Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing arbitrary data. It defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. T ...

-based documents. A DOM node can be selected from the

tree structure A tree structure, tree diagram, or tree model is a way of representing the hierarchical nature of a structure in a graphical form. It is named a "tree structure" because the classic representation resembles a tree, although the chart is gener ...

, or by clicking on the browser chrome. As well as the DOM tree viewer, other viewers are also available, including Box Model,

XBL XBL (''XML Binding Language'') is an XML-based markup language for altering the behavior of XUL widgets. It was devised at Netscape in the late 1990s as an extension of XUL. The primary use of XBL was in the Firefox web browser, but Mozilla depre ...

Bindings,

CSS Cascading Style Sheets (CSS) is a style sheet language used for describing the presentation of a document written in a markup language such as HTML or XML (including XML dialects such as SVG, MathML or XHTML). CSS is a cornerstone techno ...

Rules, Style Sheets, Computed Style,

JavaScript JavaScript (), often abbreviated as JS, is a programming language that is one of the core technologies of the World Wide Web, alongside HTML and CSS. As of 2022, 98% of Website, websites use JavaScript on the Client (computing), client side ...

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 true dragonfly are known. Most are tropical, with fewer species in temperate regions. Loss of wetland habitat threate ...

, Safari's Web Inspector, the

Internet Explorer Developer Toolbar Internet Explorer Developer Tools, also known as the F12 Developer Tools in Windows 10, and formerly known as Internet Explorer Developer Toolbar, is a web development tool built into Microsoft Internet Explorer and Microsoft Edge that aids in de ...

, and

Google Chrome Google Chrome is a cross-platform 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 ...

's Developer Tools.

External links

DOM Inspector extension for Firefox

DOM Inspector
at

Mozilla Developer Center MDN Web Docs, previously Mozilla Developer Network and formerly Mozilla Developer Center, is a documentation repository and learning resource for web developers. It was started by Mozilla in 2005 as a unified place for documentation about open web ...

XPather
- A DOMi extension that adds XPath support Software testing tools Firefox Firefox extensions merged to Firefox {{free-software-stub

See also

External links