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Mozilla Composer is the
free and open-source Free and open-source software (FOSS) is a term used to refer to groups of software consisting of both free software and open-source software where anyone is freely licensed to use, copy, study, and change the software in any way, and the source ...
HTML editor and web authoring module of the Mozilla Application Suite (the predecessor to SeaMonkey). It is used to create and to edit web pages, e-mail, and text documents easily. It is compatible with Windows, macOS and Linux. Composer is a graphical WYSIWYG HTML editor. One also can view, write and edit HTML source code with Composer.The SeaMonkey® Project
Seamonkey-project.org. Retrieved on 2013-07-17.
In September 2008 Daniel Glazman announced a new WYSIWYG HTML editor, BlueGriffon, written from scratch and based on Mozilla
Gecko Geckos are small, mostly carnivorous lizards that have a wide distribution, found on every continent except Antarctica. Belonging to the infraorder Gekkota, geckos are found in warm climates throughout the world. They range from . Geckos ar ...
and XULRunner. SeaMonkey, the community-driven successor to Mozilla Suite, includes an HTML editor named Composer that is developed from the Mozilla Composer code contained in the original Mozilla Suite.


Nvu

Nvu (pronounced ''"N-view"'') is a WYSIWYG HTML editor, based on Mozilla Composer. It is intended to be an
open-source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-source model is a decentralized sof ...
alternative to proprietary software like Microsoft Expression Web and Adobe Dreamweaver. As a WYSIWYG editor, it is designed to be easy for novice users, and does not require any knowledge of HTML or
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 ...
to use. It runs on Mac OS X, Windows and Linux and incorporates Cascading Style Sheets support and other improvements from software company Disruptive Innovations. Nvu was the brainchild of Kevin Carmony, CEO for Linspire, who wanted an easy-to-use, WYSIWYG HTML editor for Linux users. Under Carmony's direction, Linspire started and sponsored Nvu, hiring Daniel Glazman, former Netscape Communications Corporation employee, to be the lead developer.


Development

The original plan in June 2005 was to merge back the numerous changes into Mozilla Composer's source code tree. Since then the Mozilla Suite has been discontinued (then reintroduced as SeaMonkey), and no one has merged the Nvu code back into Composer.


Standards compliance

Nvu complies with the W3C's web standards. By default, pages are created in accordance to HTML 4.01 Transitional and use CSS for styling, but the user can change the settings and choose between: * Strict and transitional DTD's * HTML 4.01 and XHTML 1.0 * CSS styling or the old <font> based styling. The application includes a built-in HTML validator, which uploads pages to the
W3C's HTML Validator The Markup Validation Service is a validator by the World Wide Web Consortium (W3C) that allows Internet users to check pre-HTML5 HTML and XHTML documents for Well-formed element, well-formed markup against a document type definition. Markup val ...
and checks for compliance.


Release history

* 0.1 was released on February 4, 2004 * 0.20 was released on March 25, 2004 * 0.3 was released on June 11, 2004 * 0.4 was released on August 10, 2004 * 0.5 was released on October 6, 2004 * 0.6 (1.0b) was pre-released on November 26, 2004 * 0.7 (1.0b2) was pre-released on January 6, 2005 * 0.8 (1.0b3) was pre-released on February 2, 2005 * 0.81 was pre-released on February 9, 2005 * 0.90RC1 was released on March 4, 2005 * 0.90 was released on March 11, 2005 * 1.0PR was released on April 5, 2005 * 1.0 was released on June 28, 2005


Shift to KompoZer

Daniel Glazman, the lead developer of Nvu, announced on September 15, 2006, that he had stopped official development on Nvu and that he was developing a successor as a Mozilla.org project. It is written from scratch and based on Mozilla trunk Gecko 1.9 and XULRunner. PHP and
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 ...
would be supported. A community-driven fork, KompoZer, maintains Nvu codebase and fixes bugs until a successor to Nvu is released. Glazman's project is called BlueGriffon.


KompoZer

KompoZer is a discontinued
open source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-source model is a decentralized sof ...
WYSIWYG HTML editor based on the Nvu. KompoZer was forked as a community-driven project with development coordinated through SourceForge. KompoZer's WYSIWYG editing capabilities are one of the main attractions of the software. In addition, KompoZer allows direct code editing as well as a split code-graphic view. The most recent version is KompoZer 0.8 beta 3, released February 2010, using
Gecko Geckos are small, mostly carnivorous lizards that have a wide distribution, found on every continent except Antarctica. Belonging to the infraorder Gekkota, geckos are found in warm climates throughout the world. They range from . Geckos ar ...
1.8.1. The stable version was 0.7.10, released in August 2007. The only regular developer said in June 2011 that development "is stalled at the moment".One Year At INRIA - Kaz'hack
Kazhack.org. Retrieved on 2013-07-17.
As a
32-bit In computer architecture, 32-bit computing refers to computer systems with a processor, memory, and other major system components that operate on data in 32-bit units. Compared to smaller bit widths, 32-bit computers can perform large calculation ...
application, it is no longer supported on macOS Catalina and later versions.


Standards compliance

KompoZer complies with the W3C's web standards. By default, pages are created in accordance to HTML 4.01 Strict and use
Cascading Style Sheets 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 ...
(CSS) for styling, but the user can change the settings and choose between: * Strict and transitional DTD's * HTML 4.01 and XHTML 1.0 * CSS styling or the old <font> based styling. The application can call on the W3C HTML validator, which uploads pages to the W3C Markup Validation Service and checks for compliance.


See also

* Comparison of HTML editors *
ActiveState Komodo Komodo Edit is a free and open source text editor for dynamic programming languages. It was introduced in January 2007 to complement ActiveState's commercial Komodo IDE. As of version 4.3, Komodo Edit is built atop the Open Komodo project. Komodo ...
* BlueGriffon (replaces Nvu) * SeaMonkey (includes the Gecko-based HTML editor that KompoZer derived from) * List of HTML editors


References


External links


Seamonkey ProjectDaniel Glazman's BlueGriffon replacement for Mozilla Editor/Composer and NVU/KompoZerDaniel Glazman about KompoZer and the new composer

nvu
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Extensions and themes

Official KompoZer website
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Project website on SourceForge
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Development and User Forums
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Gin Up A Quick Web Page With Kompozer
{{FLOSS Mozilla Application Suite Free HTML editors