If a web app doesn’t use the browser, how can you test it? Microsoft’s Edge Dev Tools brings the familiar F12 tools to the desktop Press F12 in most web browsers and you’ll see a set of debugging ...

Opera Software has embedded into its Web browser a beta set of tools, collectively called Dragonfly, that can help developers find errors in their complex Web pages, the company announced Monday.

If you run into a bug or another issue with a website on Safari, use the Web Inspector tool to investigate. This article explains how to turn on this feature from your phone to debug errors with the ...