Upload & Listen Instantly
Open a document locally and listen with your device voices. Free, no login, no cloud upload, and no AI Explain.
Drop your file here
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PDF · EPUB · DOCX · TXT · HTML · MD
Your file is parsed right in your browser and never uploaded. On-device reading is free, needs no login, sends no text, and has no AI Explain.
How It Works
Open Common File Formats
PDF, EPUB, DOCX, TXT, HTML, and Markdown open directly in the local reader.
On-Device Voices by Language
Choose a browser or operating-system voice by language, shown with a name and avatar. This mode uses no server compute.
Local Parsing
The file is parsed and rendered inside this browser. It is not converted or stored in the cloud.
Free, No Login, No Explain
On-device reading has no account requirement and no AI Explain. Sign in only if you deliberately switch to CastReader AI.
Listen on Your Phone
Download the CastReader app for DRM-free EPUB import and supported mobile reading workflows.
Frequently Asked Questions
Start Listening Now
On-device file reading is free and needs no signup. Sign in for daily AI allowances and multiple personal voices with fixed previews; Pro can apply those voices for 120 minutes per membership month.
Browser extensions
For local PDF, DOCX, TXT, Markdown, and images, plus supported webpages and browser-based readers. Local EPUB import is not available.
Mobile apps
For DRM-free EPUBs and mobile reading on iPhone, iPad, and Android.
Official App Store and Google Play downloads · Chrome, Edge, and Firefox extensions