Developer Tools are not available in Internet Explorer mode. To debug the page, open the page in IEChoose. To debug the content of... Microsoft Learn Internet Explorer help | Microsoft Learn Internet Explorer 11 ended on June 15, 2022. If any site you visit needs Internet Explorer, you can reload it with Internet Explor... Microsoft Internet Explorer mode in Microsoft Edge Navigate to Settings > Default Browser. * Add the specific site(s) requiring IE compatibility to the Internet Explorer mode pages ... Microsoft Support Show all BrowserStack : Provides instant access to real IE11 instances on various Windows versions. LambdaTest : Offers a free trial for cross-browser testing on legacy IE versions. Sauce Labs

| | Does NOT simulate | |-------------------|------------------------| | IE11’s user agent string | ActiveX controls | | Some CSS quirks (flexbox bugs, calc() issues) | VB Script | | document.all , attachEvent behavior | Browser security zones | | IE-specific conditional comments (in older Edge) | Silverlight or Java applets | | -ms prefixed CSS properties | Actual rendering engine (Edge uses Chromium’s engine) |

For developers on macOS or Linux—or those who need to test across multiple legacy versions (IE7–IE10)—cloud-based simulators are the industry standard. These platforms provide instant access to real IE11 environments without the overhead of maintaining virtual machines. Internet Explorer mode in Microsoft Edge

With IE11 officially retired, the best long-term strategy is to encourage deprecation of IE11 dependencies and migrate to evergreen browsers.