Autotune is a free plugin that can be used to improve the sound quality of audio recordings. It is an effective tool for musicians, producers, and sound engineers who want to make sure their recordings sound professional without spending too much time on post-production. Autotune can be used to correct pitch and timing errors as well as enhance the overall tone of a recording. With its intuitive interface and easy-to-use features, Autotune is a great choice for anyone looking to get the most out of their audio recordings.