Maqetta is a free and open-source, web-based WYSIWYG HTML editor designed to edit HTML5 documents and web applications.

[3] The Maqetta application itself is authored in HTML, and therefore runs in the browser, without requiring additional plugins or downloads.

[4] Maqetta was developed by IBM and later donated to the Dojo Foundation as an open-source project[3] under the terms of either the BSD-3-Clause or the AFL-2.1.

The editor was developed in response to a perceived need for open-source HTML5 programming tools equivalent in capability to those available for Adobe Flash and Microsoft Silverlight.

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