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

Navigate to any webpage
Click the CastReader icon in the toolbar
Press "Read This Page"
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.

Vin Xu

Published Firefox add-on:

CastReader — Free AI Text to Speech Reader