eSpeak NG is described as 'The eSpeak NG is a compact open source software text-to-speech synthesizer for Linux, Windows, Android and other operating systems. It supports more than 100 languages and accents. It is based on the eSpeak engine created by Jonathan Duddington' and is a Text to Speech service. There are more than 25 alternatives to eSpeak NG for a variety of platforms, including Windows, Web-based, Linux, Mac and Android apps. The best eSpeak NG alternative is NaturalReader. It's not free, so if you're looking for a free alternative, you could try NaturalReader or Kokoro. Other great apps like eSpeak NG are SherpaTTS , eSpeak, TextSound Saver and Chatterbox TTS.