VOICEVOX

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

3231 stars · 370 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

VOICEVOX is a free, mid-quality text-to-speech (and singing synthesis) software whose editor is built with Electron, TypeScript, and Vue. It works with a separate engine and core library to generate speech from many Japanese voice characters, with fine-grained intonation adjustment.

Use cases

• convert japanese text to speech for free
• generate narration audio for videos
• create voice lines with anime-style characters
• adjust intonation of synthesized speech
• make characters sing from humming input
• self-host a tts api server for vtuber tools

When to choose

• you need free tts for commercial or non-commercial japanese projects
• you want a desktop gui with detailed pitch and intonation editing
• you need a variety of pre-built japanese voice characters
• you want to run a local speech synthesis api server

When to avoid

• you need high-quality multilingual or english speech synthesis
• you need a cloud-hosted managed tts service
• you require permissive licensing for all voice character usage without checking terms

Facets

application · maturity active

tts audio-processing speech-recognition gui speech-processing media windows cross-platform text-to-speech japanese voice-synthesis singing-synthesis electron-app editor free-software voice-characters audio natural-language-processing macos linux desktop electron typescript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="VOICEVOX/voicevox")