Give your eyes a break. Listen to articles, emails, or study notes with a natural voice. It's like having a personal reader on demand.
Sometimes you just don't want to stare at a screen anymore. We turn your reading list into a listening list.
You can't read an article while folding laundry, doing the dishes, or driving. But you can listen to one. Turn your reading materials into audio and reclaim your time. It's the ultimate productivity hack for busy people.
Screen fatigue is real. If you've been staring at a computer all day, reading another PDF feels like torture. Just switch to 'Read This to Me' mode, close your eyes, and absorb the information without the eyestrain.
When you read your own writing, your brain often auto-corrects mistakes. Hearing it read back to you by a neutral AI voice exposes awkward phrasing and typos instantly. It's the secret weapon of great writers.
You don't need to install a browser extension or buy an app. Just bookmark this page. Whenever you find a long email or blog post, copy it, paste it here, and hit play. It works on your laptop, phone, or tablet.
How to use your new personal reading assistant
It's super simple. Copy the text from your document, website, or email. Paste it into the big text box above. Select a voice you like, and click the 'Read Aloud' button. The audio will start playing immediately.
Yes — it's free to use, no signup. Paste your text and the play button just works. CastReader Pro (optional) adds premium ultra-realistic voices, more listening hours, voice cloning, and AI document analysis.
Not anymore. We use modern AI voices that flow naturally. While you can tell it's not a live human in the room, the rhythm and pronunciation are smooth enough to listen to for hours without getting annoyed.
Yes. If you're trying to get through a long report quickly, you can bump the speed up to 1.5x or 2x. If you're listening to something complex or learning a language, you can slow it down to 0.75x.
Absolutely. Once the audio is generated, a 'Download' button appears. You can save the MP3 file to your phone and listen to it during your commute or run, just like a podcast.
Yes. We don't store the text you paste here. The conversion happens in your browser session. Once you close the tab, your text is gone. It's safe to use for personal emails or work drafts.
Almost anything. Blog posts, news articles, essays, emails, PDF contents (if you copy-paste), and even eBook chapters. If you can copy the text, we can read it to you.
No. We hate sign-up walls too. You can start listening immediately. No email required, no passwords to remember.
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
Free to use. No signup. Install and start listening — upgrade to CastReader Pro for premium voices, more listening hours, and AI document analysis.
★★★★★ 4.7 · Free to start · No login · Optional Pro