CastReader — Free AI Text to Speech Reader

Read aloud any webpage, PDF, or Kindle book with natural AI voices. Free text-to-speech with real-time highlighting. 40+ languages.

# CastReader — Free AI Text to Speech Reader ## Short Description (132 chars max) Read aloud any webpage, PDF, or Kindle book with natural AI voices. Free text-to-speech with real-time highlighting. 40+ languages. ## Detailed Description CastReader is a free AI text-to-speech extension — read aloud any webpage, PDF, or Kindle book with natural AI voices. Follow along with real-time paragraph highlighting as you listen. No signup, no limits, completely free forever. **Free Text to Speech Extension — Why CastReader?** Unlike built-in browser TTS or basic read aloud extensions, CastReader uses Kokoro — an advanced AI voice engine that sounds genuinely human. It intelligently extracts the main article content, skipping menus, ads, and sidebars. One click to read any page aloud. The only text-to-speech Chrome extension that works on Kindle Cloud Reader. **Key Features** - 🔊 Read aloud any webpage with one click — articles, blogs, docs, PDFs - 🎯 Real-time word and paragraph highlight tracking as you listen - 🗣️ Natural-sounding AI voices powered by Kokoro TTS engine - 🧠 Smart content extraction — automatically finds the main text - 📖 Special support for Kindle Cloud Reader and WeRead (微信读书) - 📱 Send to Phone — continue listening on your mobile - ⚡ Adjustable playback speed (0.5x to 2x) - 🌐 40+ languages with automatic language detection - 💰 100% free — no signup, no limits, no premium tier **Read Aloud Any Website** Works everywhere including: - News and blogs: Medium, Substack, Reddit, Hacker News - Research papers: arXiv, Google Scholar, PubMed - Online documents: Notion, Google Docs, Confluence - E-readers: Kindle Cloud Reader, WeRead (微信读书) - AI assistants: ChatGPT, Claude, Gemini, DeepSeek - Social media: Reddit, Twitter/X, Zhihu **Perfect For** - Listening to articles while commuting or exercising - Students who learn better by listening - People with dyslexia, ADHD, or visual impairments - Proofreading your own writing by hearing it read back - Language learners practicing listening and pronunciation - Accessibility — screen reader alternative with highlight tracking - Anyone who prefers audiobooks over reading **40+ Languages Supported** English, Chinese, Japanese, Korean, French, German, Spanish, Portuguese, Russian, Arabic, Hindi, Turkish, Vietnamese, Italian, Dutch, Polish, Thai, Indonesian, and 25+ more. Language is automatically detected — no setup needed. **How to Use** 1. Navigate to any webpage 2. Click the CastReader icon in the toolbar 3. Press "Read This Page" 4. Listen and follow along with the highlighted text **100% Free — No Limits, No Subscription** CastReader is completely free with no usage limits. Natural AI voices, real-time highlight tracking, Kindle Cloud Reader support, and send-to-phone — all included at no cost. No monthly limits, no premium upsell, no account required. **Privacy First** CastReader only processes text when you click "Read This Page". No data is collected or stored. Audio is generated on-the-fly and not cached. Open source on GitHub.