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VOICEVOX

Free#51 of 222 in Text-to-Speech Software

VOICEVOX: A free, open-source voice tool with unusually detailed pronunciation and timing controls. Ranked #51 of 222 in Text-to-Speech Software by our editors (4.3/10); pricing: Free plan; best for free character-voice synthesis and pronunciation control.

4.3/10Editor score

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VOICEVOX4.3 Visit VOICEVOX

At a glance

Editor score
4.3 / 10
Pricing
Free plan
Best for
Free character-voice synthesis and pronunciation control
Free plan
Yes
Paid from
Free
Commercial use
Yes
Facts checked
20 Sep 2026

Where it wins
- Free, open-source software with permitted commercial use
- Detailed pronunciation, accent, intonation, and timing controls
- Desktop apps, API access, Docker, and WAV export
Where it doesn't
- Audio export is limited to WAV
- Humming and singing synthesis are experimental
- Voice libraries may add credit and usage requirements

Our verdict on VOICEVOX

VOICEVOX is free text-to-speech software for creating narrated audio with character-based voice libraries. It is suited to creators, developers, and teams that want direct control over pronunciation, accents, intonation, timing, and speaking styles without a subscription price. The desktop application runs on Windows, macOS, and Linux, while the engine can generate speech for other applications and services. Commercial use is permitted under the software terms, with additional conditions possible for individual voice libraries.

Its strongest differentiator is the level of voice editing available in a free application. Users can adjust pronunciation and accents in detail, tune intonation and timing per sound, and select multiple speaking styles for supported characters. VOICEVOX also includes voice morphing between supported voices, a custom pronunciation dictionary, WAV export, and experimental humming and singing synthesis. This makes it a practical fit for narrated audio where pronunciation and delivery need more adjustment than a basic text-to-speech workflow provides. The experimental status of the humming and singing features makes them better suited to exploratory use than as the sole basis for a production workflow.

For technical workflows, VOICEVOX offers an engine API, executable and Docker distributions, and a core library for integration into applications and services. That gives developers several ways to connect speech generation to existing software, while the desktop apps support direct creation. The main trade-off is format flexibility: the listed export format is WAV. Voice-library terms and credit requirements also need review before commercial release. Choose VOICEVOX for free character-voice synthesis, detailed pronunciation control, and open-source integration options; consider an alternative if you need other export formats or a less experimental singing workflow.

Your product? Our editors can test VOICEVOX in depth and publish a review, labelled as paid · from $149/mo →

VOICEVOX pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on voicevox.hiroshiba.jp

VOICEVOX fact sheet

Free plan	Yes
Paid from	Free
Commercial use	Yes
Voice cloning	Not verified
API access	Yes
Languages	Not verified
Maximum input	Not verified
Export formats	WAV
Platforms	Windows, macOS, Linux, API
Deployment	Self-hosted, Desktop
Platforms	Windows, macOS, Linux
Support	Docs
Built for	Solo, Small business (editorial estimate)
Pricing	Free plan
Website	voicevox.hiroshiba.jp
Facts checked	20 Sep 2026

Alternatives to VOICEVOX

See all VOICEVOX alternatives →

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Featured on iTechGuides

VOICEVOX is listed in our Text-to-Speech Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update