Readio

Readio is an AI-powered text-to-speech app that turns the content you already read every day—webpages, PDFs, EPUBs, and other documents—into natural-sounding speech. Instead of staring at a screen, you can let the app read to you while you commute, exercise, cook, or simply rest your eyes.

At its core, Readio uses advanced neural networks, specifically OpenAI TTS voices, to deliver lifelike intonation and clear audio in over 140 languages and accents. That means everything from English articles to foreign-language documents sounds smooth and human, not robotic or monotone.

The platform is built for long-form listening. Features like synchronized live highlighting and automatic scrolling keep you anchored to the text, so you can consume lengthy content hands-free while staying focused—whether you are working through a research paper, a long report, or an entire ebook.