AI text-to-speech voices by Supertonic, synthesized locally in your browser
Users
2,000
0 in 30 days
Rating
4.5 / 5
unchanged in 30 days
Ratings
8
0 in 30 days
Store rank
#21K
#18K among extensions
Version
2.0.0
updated 9 Mar 2026
Users
monthly, 10 months
Latest, 15 Oct 2026:2,000 usersMove the mouse over the chart for any month
Ratings count
monthly, 10 months
Latest, 15 Oct 2026:8 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Supertonic Text-to-Speech Voices
Supertonic is a collection of high-quality AI-powered text-to-speech (TTS) voices developed by Supertone, Inc. These voices are synthesized in-browser, requiring no cloud subscriptions, and are entirely free to use.
Once installed the voices will be added to the browser's list of available TTS voices, and usable by websites, apps, and by other browser extensions to synthesize text to audio.
Please be patient while Chrome downloads and installs this extension, as it is quite large due to the AI model being included in the distribution package.
Supertonic project page:
https://github.com/supertone-inc/supertonic
https://huggingface.co/Supertone/supertonic
Supertonic extension home page:
https://github.com/ken107/piper-browser-extension/tree/supertonic
Growth
Window
Users
Change
Ratings
Rating
7 days
0
+0.0%
0
0.00
30 days
0
+0.0%
0
0.00
6 months
+1,092
+120.3%
+3
+0.10
Chrome Web Store search rankings
Where Supertonic Text-to-Speech Voices appears when people search the store, with the 30 day change