Opera is a multi-platform web browser developed by its namesake company Opera. The current edition of the browser is based on Chromium. Opera is available on Windows, macOS, Linux, Android, and iOS. Opera offers two mobile versions, called Opera Mobile and Opera Mini.
Opera was released on Monday, April 10, 1995, making it one of the oldest desktop web browsers to exist. It was commercial software for its first ten years and had its own proprietary layout engine, Presto. In 2013, it switched from the Presto engine to Chromium. From Wikipedia
