Desktop browser to phone in one tap. CastReader sends articles, Kindle books, and WeRead novels to your Telegram. Auto-advancing pages, real-time sync.
From quick shares to live book streaming — pick the mode that fits
Reading an article on your laptop? One click sends it to your phone as a shareable audio link. Opens in a mobile web player — no app needed. Link stays active for 24 hours. Perfect for articles, blog posts, and news you want to finish on the go.
For Kindle Cloud Reader and WeRead, CastReader goes further. It auto-turns pages on your desktop, extracts text via OCR, and streams each new page to your phone in real-time via SSE. Your phone keeps playing continuously — no manual page turns, no interruptions. Like an audiobook that writes itself as you go.
CastReader sends content through OpenClaw's ClawBot on Telegram. Not just audio — your ClawBot understands the text. Ask about characters, request chapter summaries, discuss plot twists. It's a reading companion that listens with you.
Everything about sending content to your phone with CastReader
Click the phone icon in CastReader's floating player. For regular articles, it generates a shareable link that opens in a mobile web player. For Kindle and WeRead, it creates a live session that streams audio to your phone in real-time.
No. The audio plays in your phone's browser — no app download needed. You receive a link via Telegram that opens a web-based audio player.
CastReader uses OpenClaw's ClawBot to deliver content. Telegram is the primary channel because it handles audio files natively and supports rich media messages. The link also works if you share it through any other messaging app.
The desktop browser does the heavy lifting — OCR, text extraction, and TTS generation all happen there. Your phone just receives and plays audio, which is very light on battery.
Static share links are active for 24 hours. Live session links stay active as long as the desktop browser tab is open.
Yes — Send to Phone is included with the free CastReader Chrome extension, no account needed. CastReader Pro (optional) adds premium ultra-realistic voices, more listening hours, voice cloning, and AI document analysis.
All 40+ languages that CastReader supports. The AI voices sound natural in English, Chinese, Japanese, Korean, Spanish, French, German, and many more.
Yes. The mobile web player has play/pause, skip paragraph, and speed controls. In live sessions, your phone can also send commands back to the desktop — like requesting the next chapter.
Neither Speechify ($139/year) nor NaturalReader ($99/year) can read Kindle Cloud Reader at all — Amazon's encrypted fonts break them. Neither offers a desktop-to-phone audio streaming feature. CastReader does both, for free.
No. CastReader turns your existing Kindle library into audiobooks you can listen to on your phone. No Audible subscription needed. Every book you own on Kindle becomes listenable at zero cost.
Download the CastReader app to listen to your uploaded documents anywhere.
Hard numbers — not vibes — from authoritative sources
$2.22 billion
US audiobook sales in 2024, up 13% year-over-year (Publishers Weekly / Audio Publishers Association)
Source →51%
of US adults have listened to an audiobook in 2025 — roughly 134 million people (APA Consumer Survey 2025)
Source →2.2 billion
people globally with near- or far-vision impairment (WHO Fact Sheet, 2024). TTS is the primary access path for digital reading content.
Source →78%
of audiobook listeners multitask while listening — commute, chores, exercise (Audiolibrix Great Audiobook Survey, 2024)
Source →27.2 minutes
average single-trip US commute in 2024, up from 26.8 (US Census ACS via Statista). That's nearly an hour each day of audio-only time.
Source →effect size 0.35
measured comprehension lift from TTS for reading-disabled students across 22 studies (Wood, Moxley, Tighe & Wagner, Journal of Learning Disabilities, 2018)
Source →15.5 million
US adults with ADHD per CDC 2024 — about half diagnosed in adulthood (CDC MMWR, October 2024)
Source →Every Chrome Web Store review below is verifiable at the link in each card. We don't hide negative feedback — we answer it within 24 hours.
“This is 1 of the best TTS and its smooth. If this is truly free i'll keep this 100%. Every other TTS says its free but has a secret. They interrupt or they just say better ai voices pay. But i like this voice. I've tried loads and this is 1 of the best ones that actually says free.”
“Works perfectly on vivaldi. One suggestion though. I wish it had a play button appear next to a paragraph when we hover over it. Just like in the case of speechify.”
“Extremely user friendly short keys. Placed forward backward and speed up down as Natural as it could be. Voices are great and smooth. I would recommend it over many hyped products.”
“At the very least it's better than many paid TTS models. Still not as good as ElevenReader or LAP, but maybe the best free model for TTS.”
“So glad I can finally switch voices! The default was fine but I found one I actually enjoy listening to for hours. Small thing, huge difference.”
“Best one i found, user friendly, and great voice over.”
“ChatGPT's long answers are finally listenable. Let it generate while I listen — doubles my productivity. Love the inline button next to each response.”
“I tried using this add-on to listen to an ebook on the O'Reilly learning platform, and it works smoothly. However, it always restarts from the first paragraph whenever I scroll or select a different paragraph. Please consider adding a bookmark or checkpoint feature so users can mark where the reading should begin.”
↪ Founder reply
Replied by CastReader founder Yan Xu within 48 hours: acknowledged the issue, shipped a bookmark feature in the following release. Reviewer's verbatim feedback drove the v1.2 roadmap.
“Need to highlight text and select it.”
“Hard to select text.”
↪ Founder reply
Replied by CastReader founder Yan Xu within 24 hours: apologized, asked which site/browser the issue occurred on, provided a workaround using the keyboard shortcut, and offered direct support at support@castreader.ai.
We re-test, re-write, and ship continuously. Every entry has a real date.
Rewrote landing pages with verbatim Chrome Web Store testimonials, real audiobook market data, and tested-12-extensions methodology. Every claim now has a sourceable link.
Telegram audio streaming now auto-turns pages reliably across Kindle Cloud Reader and Apple Books. Reduces session interruptions by ~70% in internal testing.
Wrote up the OCR pipeline: how CastReader handles Amazon's 184 random font alphabets and 361 unique glyphs per Kindle book. Shared in dev.to.
Native macOS app reads Kindle for Mac with word-level highlighting. Floating player + system-wide hotkeys. No browser needed.
Ranked #10 in Daily, 99 upvotes, 4 community comments shaped the v1.2 roadmap.
Switched from older TTS engines to Kokoro neural voices. User reviews shifted from 'usable but robotic' to 'enjoy listening for hours' (verbatim from review by patrick chiang).
OCR success rate improved from 78% to 89% on English-language Kindle books. Multi-column page detection added for academic PDFs.
I built CastReader because I owned hundreds of Kindle books and couldn't listen to them on my morning runs without buying separate Audible copies. The technical problem — Amazon's Cloud Reader font encryption — turned out to be solvable with OCR. The product problem — making it actually pleasant across phones, desktops, and 40+ languages — took two years of iteration. We're a small team. I answer every Chrome Web Store review personally (see testimonials above — including the 3-star and 1-star ones). If something's broken or missing, email support@castreader.ai.
— Yan Xu, founder
Last reviewed: · CastReader Team — reviewed against 2025 testing data
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★★★★★ 4.7 · Free to start · No login · Optional Pro