Listnr is an AI text-to-speech tool that offers over 900 voices in 142 different languages, allowing users to easily convert text into natural-sounding speech and download audio files in mp3 or wav formats. It also offers podcast hosting, audio player widget, and other features such as an advanced text-to-speech editor for pitch, pauses, pronunciation, and speech speed adjustments. Listnr has over 40,000 users, including podcasters, agencies, and freelancers.