Opera Dragonfly
Opera Dragonfly is a feature of Opera web browser: it is a full-featured development and debugging tool integrated into Opera. It supports debugging JavaScript, viewing the DOM, monitoring network traffic, previewing resources, editing colors, etc. Opera Dragonfly also supports remote debugging, which allows using the features of Dragonfly to be used when debugging a mobile phone, TV, or another desktop computer. Using Opera Dragonfly for the first time requires an Internet connection to download Opera Dragonfly files. Then, Opera Dragonfly can be loaded offline from Opera's cache. Opera Dragonfly automatically updates to the latest version available, when connected to the Internet.
