ChromeOS · 60% of US K-12 devices

Text to Speech for Chromebook

Chromebooks dominate US K-12. Most teachers don't realize they have two solid TTS options: ChromeOS Select-to-Speak (built in, free, robotic voices) and FreeTTS in the browser (400+ neural voices, 75+ languages, MP3 download). This guide is the honest comparison plus when to use each, with classroom-tested workflows.

Updated May 2026 · Built-in vs FreeTTS · 7 teacher use cases

In one sentence

ChromeOS Select-to-Speak (built into every Chromebook, free) is great for quick on-screen read-aloud with basic robotic voices in about 10 languages. FreeTTS in the browser (also free) gives you 400+ neural AI voices, 75+ languages, and a downloadable MP3 file, which matters when you need IEP-quality audio, sub-day worksheet packets, or content for ELL students in a home language Select-to-Speak doesn't support. Use both for different needs.

Why Chromebook matters

Chromebooks are the K-12 default

If you teach in US K-12, your students are probably on a Chromebook. The numbers explain why this is the most-asked TTS question.

60.1%

Chromebook share of US K-12 device market in 2026.

Source: About Chromebooks

38M

active Chromebook devices in US schools.

Source: About Chromebooks 2026

93%

of US school districts planning Chromebook purchases in 2026, up from 84% in 2023.

Source: About Chromebooks

~10

languages supported by ChromeOS Select-to-Speak vs 75+ by FreeTTS.

Source: Google Chromebook Help

Side by side

Built-in Select-to-Speak vs FreeTTS

Both are free. They solve different problems. Pick by use case, not by loyalty.

Built into ChromeOS · Free

Select-to-Speak

Activate with Search + S, then drag to highlight text. Reads aloud with word highlighting.

Free, built into every Chromebook
No setup, instant access
Works on any on-screen text (Docs, Gmail, web, PDF)
Word-by-word visual highlighting
Adjustable speed
Robotic voice quality
About 10 languages, mostly English variants
No MP3 export — audio is ephemeral
Can't share audio with another student
No PDF batch conversion

Browser-based · Free tier + PRO

FreeTTS

Open freetts.org in Chrome. Paste text, pick a voice, click generate, download the MP3.

400+ neural voices, very close to natural human speech
75+ languages including Spanish, Arabic, Mandarin, Vietnamese, Haitian Creole
MP3 download — share with anyone, replay offline
PDF to audiobook (full chapters as chaptered MP3)
Free tier with 5,000 chars/month, no account needed
Works on every Chromebook in your fleet
Commercial license (PRO) for teachers selling materials
Doesn't read on-screen content automatically (paste-based workflow)
No real-time word highlighting in the browser

Full comparison

Feature-by-feature breakdown

Feature	Select-to-Speak (built in)	FreeTTS (browser)
Cost	Free, built in	Free tier + $19/mo PRO
Setup	None (toggle in settings)	Open freetts.org
Voices	~5 robotic voices	400+ neural voices
Languages	~10	75+
Voice quality	Functional, robotic	Natural, neural-grade
Word highlighting	Real-time per word	No (during synthesis)
MP3 download	No	Yes, every plan
Reads on-screen text	Yes (Search + S → drag)	Paste-based
PDF reading	Yes (Chrome viewer)	Yes (PDF-to-Audiobook)
Offline after download	Cached voices only	MP3 plays anywhere
Share audio with student	No	MP3 link or file
Speed adjustment	Yes	Yes
IEP-grade audio for files	No (no export)	Yes
Commercial use	System-only	Yes (PRO)

Hear the difference

Side-by-side audio sample

The voice quality gap is the single most-talked-about thing teachers notice when they switch from Select-to-Speak to FreeTTS for the first time.

The same paragraph, two different readers

Try this experiment in your classroom: open Select-to-Speak (Search + S) and have it read a paragraph from a science textbook. Then go to freetts.org, paste the same paragraph, pick the voice "Aria" or "Davis", and play it. Same words, very different listening experience. Especially for students who listen to long-form content (textbook chapters, novels), the natural-voice difference reduces fatigue and improves attention.

ChromeOS Select-to-Speak

Robotic, monotone, suitable for short snippets. Good for quick "what does this word say" lookups during a lesson. After 3-4 minutes of listening, fatigue sets in.

FreeTTS · Aria (Neural)

Natural prosody, sentence-level intonation, breath-like pauses. Designed for sustained listening. Students consistently prefer it for textbook chapters and long readings.

Real classrooms

Seven Chromebook TTS use cases

When teachers use which tool, by actual classroom workflow.

Quick word lookup during a lesson

Student doesn't recognize a word in the textbook. They hit Search + S, drag to select the word, hear it pronounced. Use Select-to-Speak. No reason to leave the page.

IEP read-aloud accommodation

Student has "text-to-speech" in their IEP. Teacher pastes the worksheet into FreeTTS, downloads the MP3, attaches it to the Google Classroom assignment. Use FreeTTS. The accommodation is documented automatically.

Reading the chapter for homework

Student is reading 20 pages of a textbook tonight. Select-to-Speak gets fatiguing after a few minutes. FreeTTS PDF-to-Audiobook converts the whole chapter to a chaptered MP3 they can listen to on the bus. Use FreeTTS.

ELL student reading instructions in Spanish

Newcomer ELL student needs to understand the science worksheet instructions. Teacher pastes the English instructions into FreeTTS, picks a Spanish voice, generates the audio in Spanish for parallel listening. Use FreeTTS — Select-to-Speak doesn't do quality non-English.

Listening to your own writing draft

Student is editing an essay. They paste the draft into FreeTTS and listen back to catch awkward sentences. Old editing trick, now available to every 9th grader. Use FreeTTS for the export, or Select-to-Speak for live re-reads.

Listening center for guided reading

Elementary teacher pre-generates audio for the week's 5 reading passages on Sunday night. Loads them in the listening center for kids who rotate through. Use FreeTTS — needs MP3 files for headphones at the station.

Reading a Gmail message or Google Doc on the fly

Teacher receives a parent email or is reviewing a colleague's shared doc. Wants to listen instead of read. Use Select-to-Speak. Already on the page, no reason to copy-paste.

Bottom line

You don't have to choose. Select-to-Speak is for in-the-moment, on-screen read-aloud (free, built in, fast). FreeTTS is for any time you need natural neural voices, 75+ languages, or a downloadable MP3 file (free in the browser, no account needed for the first 5,000 characters per month). Most teachers end up using both for different things in the same week.

Note:ChromeOS feature names and behavior change over time as Google updates the platform. Select-to-Speak details described here reflect the 2026 state. Check Google's official Chromebook Help for current settings paths.

FAQ

Chromebook text-to-speech FAQ

Is text-to-speech free on Chromebooks?▼

Yes, in two ways. ChromeOS has a built-in feature called Select-to-Speak that's free with every Chromebook and reads any selected text aloud using basic system voices. For richer voice quality, MP3 download, and 75+ language support, FreeTTS is also free in the browser with no install or signup needed (5,000 characters per month on the free tier).

What is Select-to-Speak on a Chromebook?▼

Select-to-Speak is the built-in ChromeOS accessibility feature that reads selected text aloud, with each word visually highlighted as it's spoken. It activates with Search + S (or by toggling it on in Accessibility settings). It works on web pages, PDFs, Google Docs, and Gmail. The voices are robotic but functional, and it covers about 10 languages.

When should I use Select-to-Speak vs FreeTTS?▼

Use Select-to-Speak when you want quick read-aloud of on-screen content for a single student in real time, no setup, no downloads. Use FreeTTS when you need natural neural voices, a downloadable MP3 file (for IEP accommodations, sub-day audio packets, or sharing on Google Classroom), or any of 75+ languages. Many teachers use both for different needs.

Does FreeTTS work on Chromebook without installing anything?▼

Yes. FreeTTS runs entirely in the browser. Open freetts.org in Chrome on any Chromebook (including the cheapest fleet models), paste text, pick a voice, listen, download. No app, no extension, no admin permission needed.

How many K-12 schools use Chromebooks?▼

In 2026, Chromebooks held about 60.1% of the US K-12 device market, with roughly 38 million active devices in classrooms. Approximately 93% of US school districts planned Chromebook purchases in 2026, up from 84% in 2023. That makes Chromebook the dominant platform for school-issued devices.

Can students use FreeTTS on a school-issued Chromebook?▼

Yes. FreeTTS is a standard website (freetts.org), so it works on any Chromebook with web access. Whether your district allows it depends on your district's content filter (most allow it because there's no objectionable content). No student account is required for the free tier; students can use it anonymously.

Does Select-to-Speak work in offline mode?▼

It works for content already loaded in the browser tab, but the voices may require a network connection on first use. FreeTTS requires internet to generate audio (it runs cloud TTS), but once an MP3 is downloaded, the audio file is fully offline and can be replayed without any internet connection.

Can FreeTTS read PDFs on Chromebook?▼

Yes, two ways. First, copy text from any PDF and paste it into FreeTTS. Second, use FreeTTS PDF-to-Audiobook to upload an entire PDF and convert it to chaptered MP3 (great for textbook chapters). Select-to-Speak can also read PDFs that are open in the Chrome PDF viewer.

Are there better neural voices on Chromebook?▼

Select-to-Speak uses basic system voices that sound robotic. FreeTTS uses 400+ neural AI voices that sound much closer to natural human speech. For accessibility this matters: students who listen for long periods (like an entire textbook chapter) experience significantly less listening fatigue with neural voices.

Can I use FreeTTS for IEP accommodations on a Chromebook?▼

Yes. The workflow is identical to any other device: teacher pastes text, generates audio, downloads MP3 or shares the link. The student listens in their school Google account or downloads the file. See our IEP accommodations guide for sample wording you can paste into the IEP.

Does FreeTTS support Spanish, Mandarin, Arabic, or other languages on Chromebook?▼

Yes, 75+ languages. Spanish, Arabic, Mandarin, Vietnamese, Portuguese, Haitian Creole, Hmong, French, German, Korean, Hindi, and many more, all with native-quality neural voices. Particularly valuable for ELL students. Select-to-Speak covers about 10 languages with limited voice quality in non-English.

Does Chromebook Select-to-Speak read out text in other apps like Gmail or Google Docs?▼

Yes. Select-to-Speak works system-wide in ChromeOS, so it reads content in Gmail, Google Docs, Slides, Sheets, websites, PDFs in the Chrome viewer, and most Android apps installed on Chromebook. FreeTTS only works on the freetts.org tab, but the resulting MP3 can be played anywhere.

Is FreeTTS Chrome extension required to use it on Chromebook?▼

No. FreeTTS works as a website, no extension required. There is also a Chrome extension version that adds right-click read-aloud functionality on any webpage, but it's optional. The website itself does the core job: paste text, generate MP3, download or share.

Sources

Research and references

About Chromebooks · 2026 Education Adoption Statistics

Chromebooks held 60.1% of US K-12 device market in 2026, ~38M active devices, 93% of districts planning further purchases. aboutchromebooks.com

Google Chromebook Accessibility Documentation

Official ChromeOS accessibility features documentation including Select-to-Speak setup, supported voices, and language coverage. support.google.com/chromebook