The search term includes the word "new," which is a red flag. There is no "new" version of Mavis Beacon available for free. The current rights holders (now typically under the "Mavis Beacon Teaches Typing" brand, recently updated with a new UI) sell the software legally. Any site claiming to have a "new free version" is almost certainly lying to get your click or infect your device.
A modern, minimalist, and highly customizable typing tool that is completely open-source and free of ads. The Verdict