This week Opera Software announced the beta release of Opera Dragonfly, its open source debugging tool suite for web developers and designers. Dragonfly is downloaded along with the Opera browser, and was designed to fulfill the entire debugging workflow.
Web developers eager to try out Dragonfly will be happy to find out that it supports the inspection of network access and downloaded resources, and provides developers with the ability to correct JavaScript issues and examine how CSS rules are applied to the Document Object Model (DOM).
Dragonfly has already been compared to Mozilla’s Firebug extension, and supports the latest web technologies including SVG and HTML5, including the APIs for web storage. The tool’s storage inspector enables developers to update and test cookies, as well as access the aforementioned storage API.
The original home of HTML tutorials. HTMLGoodies is a website dedicated to publishing tutorials that cover every aspect of being a web developer. We cover programming and web development tutorials on languages and technologies such as HTML, JavaScript, and CSS. In addition, our articles cover web frameworks like Angular and React.JS, as well as popular Content Management Systems (CMS) that include WordPress, Drupal, and Joomla. Website development platforms like Shopify, Squarespace, and Wix are also featured. Topics related to solid web design and Internet Marketing also find a home on HTMLGoodies, as we discuss UX/UI Design, Search Engine Optimization (SEO), and web dev best practices.
Property of TechnologyAdvice. © 2025 TechnologyAdvice. All Rights Reserved
Advertiser Disclosure: Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. TechnologyAdvice does not include all companies or all types of products available in the marketplace.
