Upload & Listen Instantly
Listen anywhere — browser or phone.
CastReader works in your browser and on your phone. Pick yours and start listening in 30 seconds.
Browser extensions
Mobile apps
Official App Store and Google Play downloads · Chrome, Edge, and Firefox extensions
How It Works
Upload Any Format
PDF, EPUB, DOCX, TXT, HTML, Markdown — we handle them all. Just drag and drop.
Natural AI Voices
Choose from CastReader's available natural AI voices. English and Chinese have the most curated production options; other supported languages are Beta/Lab.
Instant Conversion
Your document is processed in seconds. Start listening immediately, no waiting.
Free, No Login
No account needed. No usage limits. Upload and listen — that's it.
Listen on Your Phone
Download the CastReader app to listen to your uploaded documents anywhere.
Frequently Asked Questions
Start Listening Now
Free to use. No signup. Install and start listening — upgrade to CastReader Pro for premium voices, more listening hours, and AI document analysis.
Browser extensions
Mobile apps
Official App Store and Google Play downloads · Chrome, Edge, and Firefox extensions