CastReader records 55,999 monthly visits with +9.8% month-over-month growth and Freemium pricing. SayAI records 0 monthly visits with — growth and Free pricing.
Read aloud webpages, PDFs, Kindle books and AI answers with synced highlighting
Talk to ChatGPT and hear its answers read aloud.
| Dimension / Metric | | |
|---|---|---|
| Official Domain | castreader.com | chromewebstore.google.com |
| Pricing Model | Freemium | Free |
| Monthly Visits | 56K (55,999) | 0 (0) |
| MoM Traffic Delta |
|---|
| +4.98K (+9.8%) |
| 0 (—) |
| Primary Market & Share | 🇺🇸 United States (56%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 19.7K | 0 |
|---|
| User Rating | 4.4 | 3.5 |
|---|
| Supported Platforms | Website | Browser Extension |
|---|
Read aloud webpages, PDFs, Kindle books and AI answers with synced highlighting
Natural AI voices narrate webpages, PDFs, ebooks and documents while each spoken word is highlighted and the page auto-scrolls, so you never lose your place.
Instead of only reading a hard passage, CastReader summarises and unpacks its meaning in the language you know best, with an animated pen marking the key lines in the original text.
Works across Kindle, WeRead, Google Play Books, O'Reilly and other book platforms, news and newsletter sites, Google Docs, Notion, Gmail, plus ChatGPT, Claude, Gemini, DeepSeek and Kimi answers.
Preview real samples of dozens of voices across many languages, and create private cloned voices that Pro members can apply to their own PDF, EPUB, Word and TXT files.
Talk to ChatGPT and hear its answers read aloud.
Record your question directly in the ChatGPT web UI instead of typing it, with several languages supported through the OpenAI Whisper API.
ChatGPT's replies are read aloud using the browser speechSynthesis API and your operating system's installed voices.
Turn voice recording and text-to-speech on or off separately in the interface to suit the moment.
A small extension (well under a megabyte) with no cost and a developer declaration of no data collection.
Text to speech and voice AI across every device
Free AI text to speech with 200+ voices in 70+ languages
Listen to anything. Beautifully.
Turn any webpage, PDF, Doc or ebook into natural-sounding speech in 60+ languages
Turn PDFs, docs and web pages into natural-sounding audio you can listen to anywhere
Free ChatGPT-style text-to-speech and speech-to-text in your browser
Free browser text-to-speech with natural neural voices
Listen to PDFs, ebooks, and webpages in natural AI voices with synced highlighting.
Reader mode, text-to-speech and AI summaries for any web page
Turn any web page, PDF or email into natural speech you can listen to anywhere
Turn anything you read on the web into audio you can listen to anywhere
Listen to any web page like a podcast
Text to speech and voice AI across every device
Free AI text to speech with 200+ voices in 70+ languages
Listen to anything. Beautifully.
Turn any webpage, PDF, Doc or ebook into natural-sounding speech in 60+ languages
Turn PDFs, docs and web pages into natural-sounding audio you can listen to anywhere
Free ChatGPT-style text-to-speech and speech-to-text in your browser
Free browser text-to-speech with natural neural voices
Reader mode, text-to-speech and AI summaries for any web page
Turn any web page, PDF or email into natural speech you can listen to anywhere
Turn anything you read on the web into audio you can listen to anywhere
Listen to any web page like a podcast
