Text to speech and voice AI across every device
CastReader records 55,999 monthly visits with +9.8% month-over-month growth and Freemium pricing. Yapping: Voice Mode for Claude.ai records 0 monthly visits with — growth and Freemium pricing.
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | castreader.com | chromewebstore.google.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 56K (55,999) | 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 | 4.1 |
|---|
| 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 Claude.ai instead of typing — hands-free voice input in your browser
A microphone button injected into the Claude interface lets you dictate prompts verbally instead of typing them out.
You connect your own API credentials during setup, so usage is billed by the provider you choose rather than by a middleman.
Best suited to long, detailed briefs — speak the context you would normally type and send it in one go.
Under 250 KB with a published privacy policy stating that data is not sold or used for unrelated purposes.
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

Speak naturally, get polished and structured text anywhere on your desktop

Free browser text-to-speech with natural neural voices

ChatGPT in your Mac menu bar, inline and everywhere
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

Voice control the web — dictate and navigate Chrome hands-free
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
Speak naturally, get polished and structured text anywhere on your desktop
Free browser text-to-speech with natural neural voices
ChatGPT in your Mac menu bar, inline and everywhere
Reader mode, text-to-speech and AI summaries for any web page
Voice control the web — dictate and navigate Chrome hands-free