Free Text to Speech Online

Convert any text to natural AI speech in seconds — no sign-up, no ads. Download MP3 instantly.

Free — no sign-upRuns in your browserNothing to install

Paste text and have it read to you

Runs in your browser — nothing is uploaded

353 / 3000 charactersVoices come from your operating system
Paste anything you want read out loud here. This demo speaks it using the voices already installed on your device, so nothing is uploaded and there is no limit on how often you use it. For natural AI voices, whole PDFs and EPUBs, Kindle Cloud Reader, or a foreign-language page explained in your own language, use the CastReader extension or mobile app.

This demo is the floor, not the ceiling

It uses your device's built-in voices on short passages. The extension and apps add natural AI voices, unlimited-length documents, Kindle Cloud Reader support, synced highlighting on live webpages, and cross-language Read & Explain.

Why Choose Our Free Text to Speech Tool?

Experience high-quality text to speech conversion with natural AI voices

Free to Use

Natural AI Text to Speech

Unlike other TTS services that require expensive subscriptions just to get started, our tool is free to use with natural AI voices and no credit card required. Upgrade to CastReader Pro for premium ultra-realistic voices, more listening hours, and AI document analysis.

Natural AI Text to Speech
No Account, No Tracking

Privacy First

No Account, No Tracking

Your privacy matters. Use our text to speech tool without creating an account or sharing personal information. All processing happens directly in your browser—your text stays private and secure.

Natural Voices

High-Quality AI Voices

Powered by advanced AI technology, our voices sound remarkably human and natural. Choose from multiple voices and adjust speed to match your preference. Perfect for audiobooks, learning materials, presentations, and accessibility.

High-Quality AI Voices
Convert Text in Seconds

Lightning Fast

Convert Text in Seconds

Get instant results with our optimized AI model. Simply paste your text, select a voice, and click generate. Download your audio file immediately—perfect for quick conversions and on-the-go usage.

Frequently Asked Questions

Everything you need to know about our free text to speech tool

Is this text to speech tool really free?+

Yes — CastReader is free to use, no signup, with natural AI voices. Unlike other services that require a subscription just to get started, you can convert text to speech for free. Upgrade to CastReader Pro for natural AI voices, more listening hours, and AI document analysis.

Do I need to create an account?+

No account required! You can start using our text to speech tool immediately without signing up or providing any personal information. Your privacy is important to us, and all processing happens locally in your browser.

What is text to speech (TTS)?+

Text to speech (TTS) is an AI technology that converts written text into spoken audio. Our TTS tool uses advanced machine learning models to generate natural-sounding human voices that can read any text aloud, making content more accessible and easier to consume.

How natural do the voices sound?+

Our AI voices are powered by state-of-the-art text to speech technology, producing remarkably natural and human-like speech. The voices include proper intonation, pronunciation, and emotional nuance, making them ideal for audiobooks, learning materials, and professional presentations.

Can I download the generated audio?+

Yes! Once your text is converted to speech, you can download the audio file in WAV format. The downloaded audio can be used for various purposes including podcasts, videos, presentations, or personal use.

What languages are supported?+

Currently, our text to speech tool supports English with both US and UK accents. We offer multiple voice options to choose from, allowing you to find the perfect voice for your content. Support for additional languages is coming soon.

Who can benefit from using text to speech?+

Text to speech is valuable for everyone! Students can listen to study materials, professionals can consume documents while multitasking, content creators can generate voiceovers, and people with visual impairments or dyslexia can access written content more easily. It's also perfect for creating audiobooks, podcasts, and video narrations.

Are there any usage limits?+

The free tier lets you convert text to speech with natural AI voices and a monthly credit allowance — enough to read long articles and documents. If you need more, CastReader Pro adds premium ultra-realistic voices, more listening hours (about 60 hours a month), voice selection, and AI document analysis.

Can I adjust the voice speed?+

Yes! Our text to speech tool allows you to control the playback speed. You can slow down the speech for better comprehension or speed it up to consume content faster. Speed options range from 0.5x to 2x, giving you complete control over how you listen.

Is my text data secure and private?+

Absolutely! Your privacy is our top priority. All text to speech processing happens directly in your browser using local AI models. Your text is never sent to our servers or stored anywhere. What you type stays completely private and secure on your device.

Can I use this on my mobile phone?+

Currently, our text to speech tool is optimized for desktop browsers only. We're working on mobile support and will be releasing a mobile-friendly version in the near future. For now, please use a desktop or laptop computer to access all features.

Does CastReader have a character limit like other free TTS tools?+

Most free text-to-speech websites cap you at 500-5,000 characters per conversion and ask you to upgrade for longer text. CastReader doesn't count characters that way — paste a single sentence or read an entire article, it all works the same. Because CastReader is a Chrome extension that reads what's already on your screen, there's no uploading, no pasting, and no character counting. The free tier covers everyday reading; CastReader Pro adds more listening hours for heavy use.

What is the best free text-to-speech Chrome extension in 2026?+

CastReader is rated 4.7★ on the Chrome Web Store and is the only TTS extension that works on encrypted platforms like Kindle Cloud Reader and Canvas-rendered sites like WeRead. It's free to use with natural AI voices. Other options include Read Aloud and Natural Reader, but both have tight daily free limits or require paid upgrades for natural-sounding voices. See our full comparison of TTS Chrome extensions.

Can I use text to speech for long documents like entire books?+

Yes. The online tool on this page handles short text. For long documents — articles, ebooks, PDFs, entire Kindle books — install the free CastReader Chrome extension. It reads any webpage aloud with paragraph highlighting, auto-scrolling, and speed control. It handles long reads with ease, and CastReader Pro adds more listening hours for heavy use. You can also send audio to your phone and listen on the go.

How does CastReader compare to Speechify and NaturalReader?+

Speechify costs $139/year. NaturalReader's premium plan is $60/year. CastReader is free to use with natural AI voices and no signup — and CastReader Pro is $9.99/month or $99/year for natural AI voices, more listening hours, and AI document analysis. Voice quality is comparable across all three (all use neural AI voices). CastReader's unique advantage: it works on sites that block other extensions (Kindle, Google Docs, WeRead) using OCR and dedicated extractors. For a detailed comparison, see our Speechify vs CastReader breakdown.

Is there a free text to speech that works offline?+

CastReader's online tool requires an internet connection. However, your browser has a built-in speech synthesis API (window.speechSynthesis) that works offline — but the voice quality is significantly lower than AI voices. For the best free TTS experience, we recommend using CastReader online. If you need offline capability and are willing to pay, tools like Balabolka (Windows) offer offline TTS with downloadable voice packs.

Can't find what you're looking for? Contact our customer support team

Why TTS Matters in 2026

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 →

What Readers Say — Including the Critical Reviews

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.
Jordan · Chrome Web Store
★★★★★
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.
Loic COBBINA · Chrome Web Store
★★★★★
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.
grann tosif · Chrome Web Store
★★★★★
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.
eclpse_ · Chrome Web Store
★★★★★
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.
patrick chiang · Chrome Web Store
★★★★★
Best one i found, user friendly, and great voice over.
Mohab A · Chrome Web Store
★★★★★
ChatGPT's long answers are finally listenable. Let it generate while I listen — doubles my productivity. Love the inline button next to each response.
young D · Chrome Web Store
★★★★★
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.

Hedi · Chrome Web Store
★★★★
Need to highlight text and select it.
Vivian Le · Chrome Web Store
★★★★
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.com.

David Smolinski · Chrome Web Store

Read all 28 reviews on Chrome Web Store

Recent Updates

We re-test, re-write, and ship continuously. Every entry has a real date.

  1. Site-wide trust signals refresh

    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.

  2. Native mobile listening

    CastReader provides native apps for iPhone and Android; Android downloads are available directly from Google Play.

  3. Technical deep-dive published

    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.

  4. Mobile Kindle Read Aloud page added

    The phone app flow now has its own landing page for bookshelf sync, Read Aloud, synced highlighting, auto-scroll, background playback, and resume progress.

  5. Featured on Product Hunt

    Ranked #10 in Daily, 99 upvotes, 4 community comments shaped the v1.2 roadmap.

  6. Voice quality upgrade — Kokoro AI

    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).

  7. First wave of extraction reliability improvements

    OCR success rate improved from 78% to 89% on English-language Kindle books. Multi-column page detection added for academic PDFs.

Why This Exists

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 9 supported 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.com.

— Yan Xu, founder

Last reviewed: · CastReader Team — reviewed against 2025 testing data

Listen on Your Phone

Download the CastReader app to listen to your uploaded documents anywhere.

Explore books
Book details
Reading experience

Read Any Webpage Aloud — Free, No Signup

Skip copy-pasting text. The CastReader extension reads entire articles, blogs, and ebooks directly in your browser with one click.

Free Text to Speech Online — No Sign Up