The pre-processing increases compatibility with web pages not designed for mobile phones. The compression ratio is 90% and the transfer speed is increased by two to three times as a result. The compression server processes and compresses requested web pages before sending them to the mobile phone. Opera Mini requests web pages through Opera Software's compression proxy server. Opera Mini was derived from the Opera web browser. As of 2018, the Android build is the only version still under active development. It was previously developed for iOS, Windows 10 Mobile, Windows Phone 8.1, BlackBerry, Symbian, and Bada. It was primarily designed for the Java ME platform, as a low-end sibling for Opera Mobile, but it is now developed exclusively for Android.

Opera Mini is a mobile web browser developed by Opera. Nokia X family, Samsung feature phones, devices by Celkon, Karbonn, Lava, Intex, Fly, Zen, HCL ME, and other manufacturers Other modes: WebView (Android) or WebKit (iOS) Īndroid, iOS, Windows 10 Mobile, Windows Phone 8.1, BlackBerry, Symbian.Extreme/Mini mode: Contents arrive pre-rendered using server sided Presto layout engine.