Do I need to install anything or write code to use supertonic-3?

No install needed — it runs in the browser.

Can I use supertonic-3 commercially?

The licence is OpenRAIL. Read the licence text before using it commercially.

Voice & audio

supertonic-3

[Being discontinued] Fast on-device text to speech

Visit official page 日本語で詳しく見る

Popularity

★ 266

Last update

May 2026

License / pricing

OpenRAIL

What it does

Generates speech locally without a network connection, with an emphasis on speed and small footprint. On 23 July 2026 the maintainers announced that this repository will be archived with no further development or official support for the open-source models, and that the associated Voice Builder service becomes inaccessible after 31 August 2026. Not a sensible choice to start with now - Kokoro and similar projects remain active.

Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.

Screenshots & visuals

Before you start

Setup difficultySome setup needed
Command lineRequired
API keyNot required
Sends data onlineYes

Judged automatically from the project's own metadata. Always confirm on the official page.

supertonic-3 FAQ

Do I need to install anything or write code to use supertonic-3?: No install needed — it runs in the browser.
Does supertonic-3 work on a phone?: No. It needs a computer.
Can I use supertonic-3 commercially?: The licence is OpenRAIL. Read the licence text before using it commercially.

How it compares

The conditions that decide whether you can actually use it, side by side.

Tool	Command line	API key	Sends data out	Phone	Commercial use
supertonic-3 (this page)	Required	Not needed	Yes	No	With conditions
Whisper	Required	Not needed	No	No	Yes
Bark	Required	Not needed	No	No	Yes
Piper	Required	Not needed	No	No	Yes

"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.

Other voice & audio tools

Whisper

OpenAI's renowned speech-to-text model

Bark

Generate natural speech, laughter and sound effects from text

Piper

Fast, light text-to-speech that runs offline

voicebox

A free all-in-one local voice studio: text to speech, cloning and dictation

Browse all tools Home

What it does

Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.

How it compares

The conditions that decide whether you can actually use it, side by side.

Tool	Command line	API key	Sends data out	Phone	Commercial use
supertonic-3 (this page)	Required	Not needed	Yes	No	With conditions
Whisper	Required	Not needed	No	No	Yes
Bark	Required	Not needed	No	No	Yes
Piper	Required	Not needed	No	No	Yes

"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.