Mozilla Composer is the free and open-source

HTML editor An HTML editor is a program 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 and added functionality. For example, many HT ...

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 is used to create and to edit web pages,

e-mail Electronic mail (email or e-mail) is a method of exchanging messages ("mail") between people using electronic devices. Email was thus conceived as the electronic (digital) version of, or counterpart to, mail, at a time when "mail" meant ...

, and text documents easily. It is compatible with

Windows Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for ser ...

macOS macOS (; previously OS X and originally Mac OS X) is a Unix operating system developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac computers. Within the market of desktop and lapt ...

and

Linux Linux ( or ) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, w ...

. Composer is 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 data, as in design and manufacture ...

WYSIWYG In computing, WYSIWYG ( ), an acronym for What You See Is What You Get, is a system in which editing software allows content to be edited in a form that resembles its appearance when printed or displayed as a finished product, such as a printed d ...

. One also can view, write and edit

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 JavaSc ...

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 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. T ...

, 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 alternative to

proprietary software Proprietary software is software that is deemed within the free and open-source software to be non-free because its creator, publisher, or other rightsholder or rightsholder partner exercises a legal monopoly afforded by modern copyright and i ...

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 Inc. 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 ...

. 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 operating system developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac computers. Within the market of desktop and la ...

and

and incorporates

Cascading Style Sheet 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 technol ...

s support and other improvements from software company Disruptive Innovations. 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 was onc ...

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

), 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 and led by Tim Berners-Lee, the consortium is made up of member organizations that maintain full-time staff working to ...

'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. It mirrors or extends versions of the widely used HyperText Markup Language (HTML), the language in which Web pages are formulated. While HTML, prior ...

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 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 The Mozilla Foundation (stylized as moz://a) is an American non-profit organization that exists to support and collectively lead the Open-source software, open source Mozilla project. Founded in July 2003, the organization sets the policies tha ...

project. It is written from scratch and based on Mozilla trunk Gecko 1.9 and

PHP PHP is a general-purpose scripting language geared toward 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, 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

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

SourceForge SourceForge is a web service that offers software consumers a centralized online location to control and manage open-source software projects and research business software. It provides source code repository hosting, bug tracking, mirroring ...

. 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 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 application, it is no longer supported on

macOS Catalina macOS Catalina (version 10.15) is the sixteenth 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 released to the publ ...

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 HTML validator, 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 markup against a document type definition. Markup validation is an impor ...

and checks for compliance.

Nvu

Development

Standards compliance

Release history

Shift to KompoZer

KompoZer

Standards compliance

See also

References

External links