--- # Scope: # * Explain browser compatibility of CKEditor 5. # * Document known compatibility issues and missing features. # * Discuss support for mobile environments. category: builds-support order: 10 --- # Browser compatibility ## Desktop environment CKEditor 5 is currently supported in the following desktop browsers: * Full support: * Chrome (latest stable release). * Firefox (latest stable release). * Safari (latest stable release). * Opera (latest stable release). * Electron (latest stable release). * Edge (latest stable release). Known issues: * Minor issue with selection: [1](https://github.com/ckeditor/ckeditor5-engine/issues/974). Not supported yet: * Internet Explorer 11. See the [Compatibility with IE11](https://github.com/ckeditor/ckeditor5/issues/330) ticket. ## Mobile environment CKEditor 5 is currently supported in the following mobile environments: * Android (all vendor-supported versions) * iOS (all vendor-supported versions) * Android WebView * iOS WebView (UIWebView and WKWebView) ## Quality assurance To ensure the highest quality, we maintain a complete test suite with a stable 100% of code coverage for each of the packages. As of February 2020, this means over 12,000 tests and the number is growing. Such an extensive test suite requires a proper continuous integration service. We use [Travis CI](https://travis-ci.com/) as a build platform. This service ensures seamless and fast developer experience and allow us to focus on the job.