eSpeak - eSpeak is a compact open source software speech synthesizer for English and other languages, for...

NaturalReader - Main Feature: Full Common Functions: Read Text Files o Text files o MS Word files

Balabolka - Balabolka is a Text-To-Speech (TTS) program.

TextAloud - NextUp.com develops Windows text to speech (TTS) software applications like TextAloud that let your...

eSpeak NG - eSpeak NG is an open source speech synthesizer that supports more than hundred languages and accents.

Mycroft Mimic - Mimic is a powerful TTS tool. Mimic is low-latency and has a small resource footprint. Its range of high quality voices also set it apart from other open source text-to-speech projects.