Mozilla Composer is the former

free and open-source Free and open-source software (FOSS) is software available under a Software license, license that grants users the right to use, modify, and distribute the software modified or not to everyone free of charge. FOSS is an inclusive umbrella term ...

HTML editor An HTML editor is a program used for editing HTML, the markup of a web page. Although the HTML markup in a web page can be controlled with any text editor, specialized HTML editors can offer convenience, added functionality, and organisation. Fo ...

and web authoring module of the

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 ...

(the predecessor to

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 ...

). It was used to create and to edit

web page A web page (or webpage) is a World Wide Web, Web document that is accessed in a web browser. A website typically consists of many web pages hyperlink, linked together under a common domain name. The term "web page" is therefore a metaphor of pap ...

e-mail Electronic mail (usually shortened to email; alternatively hyphenated e-mail) is a method of transmitting and receiving Digital media, digital messages using electronics, electronic devices over a computer network. It was conceived in the ...

, and text documents, and available for

Windows Windows is a Product lining, product line of Proprietary software, proprietary graphical user interface, graphical operating systems developed and marketed by Microsoft. It is grouped into families and subfamilies that cater to particular sec ...

macOS macOS, previously OS X and originally Mac OS X, is a Unix, Unix-based operating system developed and marketed by Apple Inc., Apple since 2001. It is the current operating system for Apple's Mac (computer), Mac computers. With ...

and

Linux Linux ( ) is a family of open source Unix-like operating systems based on the Linux kernel, an kernel (operating system), operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically package manager, pac ...

. Composer was a

graphical Graphics () are visual images or designs on some surface, such as a wall, canvas, screen, paper, or stone, to inform, illustrate, or entertain. In contemporary usage, it includes a pictorial representation of the data, as in design and manufactu ...

WYSIWYG In computing, WYSIWYG ( ), an acronym for what you see is what you get, refers to software that allows content to be edited in a form that resembles its appearance when printed or displayed as a finished product, such as a printed document, web ...

to view, write and edit

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 ( ...

source code.The SeaMonkey® Project
Seamonkey-project.org. Retrieved on 2013-07-17. In September 2008 Daniel Glazman announced a new

HTML editor,

BlueGriffon BlueGriffon was a WYSIWYG content editor for the World Wide Web. It is based on the discontinued Nvu editor, which in turn is based on the Composer component of the Mozilla Application Suite, which was previously known as Netscape Composer, w ...

, 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. They range from . Geckos are unique among lizards ...

and

XULRunner XULRunner is a discontinued, packaged version of the Mozilla platform to enable standalone desktop application development using XUL, developed by Mozilla. It replaced the ''Gecko Runtime Environment'', a stalled project with a similar purpose. ...

, 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

, 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 and view the source code, design documents, or content of the product. The open source model is a decentrali ...

alternative to

proprietary software Proprietary software is computer software, software that grants its creator, publisher, or other rightsholder or rightsholder partner a legal monopoly by modern copyright and intellectual property law to exclude the recipient from freely sharing t ...

Microsoft Expression Web Microsoft Expression Web is a discontinued HTML editor and general web design software product by Microsoft. It was discontinued on December 20, 2012, and subsequently made available free of charge from Microsoft. It was a component of the also ...

and

Adobe Dreamweaver Adobe Dreamweaver is a proprietary web development tool from Adobe. It was created by Macromedia in 1997 and developed by them until Macromedia was acquired by Adobe Systems in 2005. Adobe Dreamweaver is available for the macOS and Windows oper ...

. As a WYSIWYG editor, it is designed to be easy for novice users, and does not require any knowledge of

or CSS to use. It runs on

Mac OS X macOS, previously OS X and originally Mac OS X, is a Unix, Unix-based operating system developed and marketed by Apple Inc., Apple since 2001. It is the current operating system for Apple's Mac (computer), Mac computers. With ...

and

and incorporates Cascading Style Sheets support and other improvements from software company

Disruptive Innovations Disruption, disruptive, or disrupted may refer to: Business *Creative disruption, disruption concept in a creative context, introduced in 1992 by TBWA's chairman Jean-Marie Dru * Disruptive innovation, Clayton Christensen's theory of industry dis ...

. Nvu was the brainchild of Kevin Carmony, CEO for

Linspire Linspire (formerly Lindows) is a commercial operating system based on Debian and Ubuntu and currently owned by PC/OpenSystems LLC. It had been owned by Linspire. Inc. from 2001 to 2008, and then by Xandros from 2008 to 2017. On July 1, 2008, Li ...

, 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 Netscape Communications Corporation (originally Mosaic Communications Corporation) was an American independent computer services company with headquarters in Mountain View, California, and then Dulles, Virginia. Its Netscape (web browser), Nets ...

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 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 b ...

has been discontinued (then reintroduced as

), and no one has merged the Nvu code back into Composer.

Standards compliance

Nvu complies with the

W3C The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web. Founded in 1994 by Tim Berners-Lee, the consortium is made up of member organizations that maintain full-time staff working together in ...

'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 *

4.01 and

XHTML Extensible HyperText Markup Language (XHTML) is part of the family of XML markup languages which mirrors or extends versions of the widely used HyperText Markup Language (HTML), the language in which Web pages are formulated. While HTML, pr ...

1.0 * CSS styling or the old <font> based styling. The application includes a built-in

HTML validator A validator is a computer program used to check the validity or syntactical correctness of a fragment of code or document. The term is commonly used in the context of validating HTML,Tittel, Ed, and Mary C. Burmeister. HTML 4 for Dummies. --For ...

, 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 markup against a document type definition (DTD). Markup validation is an ...

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

PHP PHP is a general-purpose scripting language geared towards web development. It was originally created by Danish-Canadian programmer Rasmus Lerdorf in 1993 and released in 1995. The PHP reference implementation is now produced by the PHP Group. ...

and CSS would be supported. A community-driven fork,

KompoZer Mozilla Composer is the former free and open-source HTML editor and web authoring module of the Mozilla Application Suite (the predecessor to SeaMonkey). It was used to create and to edit web pages, e-mail, and text documents, and available ...

, maintains Nvu codebase and fixes bugs until a successor to Nvu is released. Glazman's project is called

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 and view the source code, design documents, or content of the product. The open source model is a decentrali ...

HTML editor based on the Nvu. KompoZer was forked as a community-driven project with development coordinated through

SourceForge SourceForge is a web service founded by Geoffrey B. Jeffery, Tim Perdue, and Drew Streib in November 1999. SourceForge provides a centralized software discovery platform, including an online platform for managing and hosting open-source soft ...

. 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

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 a maximum of 32- bit units. Compared to smaller bit widths, 32-bit computers can perform la ...

application, it is no longer supported on

macOS Catalina macOS Catalina (version 10.15) is the sixteenth software versioning, major release of macOS, Apple Inc.'s desktop operating system for Macintosh computers. It is the successor to macOS Mojave and was announced at WWDC 2019 on June 3, 2019 and ...

and later versions.

Standards compliance

KompoZer complies with the

's web standards. By default, pages are created in accordance to

4.01 Strict and use Cascading Style Sheets (CSS) for styling, but the user can change the settings and choose between: * Strict and transitional DTD's * HTML 4.01 and

1.0 * CSS styling or the old <font> based styling. The application can call on the W3C

, which uploads pages to the

W3C Markup Validation Service 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 (DTD). Marku ...

and checks for compliance.

Nvu

Development

Standards compliance

Release history

Shift to KompoZer

KompoZer

Standards compliance

See also

References

External links