TwoTone lets you turn data into sound and music. It uses the process of sonification to let you hear data. It’s free and open-source and runs 100% on the web, so you don’t need to download anything. TwoTone works on desktops, tablets and phones. It’s designed to be fast, fun and easy to use. The Financial Times, writing about sonification and TwoTone in March 2019, concluded that “Some might be inclined to dismiss sonification as a novelty, but a new generation of screenless devices with voice interfaces, such as Amazon’s Alexa, marks the end of silent interaction with computers. It is perhaps naive to think that data will continue to just be seen and not heard.” Get started with web application here and read more about it here.