# VOICEVOX

無料で使える中品質なテキスト読み上げソフトウェア、VOICEVOXのエディター

Repository: https://github.com/VOICEVOX/voicevox
Canonical: https://ross.abutalabs.com/products/voicevox
Homepage: https://voicevox.hiroshiba.jp/
Language: TypeScript
License: NOASSERTION
License Family: other
Last push: 2026-08-26T12:23:18+00:00
Link (homepage): https://voicevox.hiroshiba.jp/

## Health v2 (maintenance only)
Score: 93/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 81, longevity 100
- inputs: {"age_days": 1863, "days_push": 7, "days_rel": 125, "gap_med": 17.0, "n_releases_24m": 15}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3231, forks 370 (observed 2026-08-28T04:07:50.130824+00:00)

## What it is
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
- artifact type: application
- maturity: active
- function: tts, audio-processing, speech-recognition, gui
- domain: speech-processing, media
- platform: windows, cross-platform
- tags: 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
- VOICEVOX/voicevox (main) score 93
- VOICEVOX/voicevox_engine (backend) score 89
- VOICEVOX/voicevox_core (sdk) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:50.130824+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:24:38.435695+00:00, confidence not recorded.
  - readme: https://github.com/VOICEVOX/voicevox (fetched 2026-08-28T04:07:50.130824+00:00, sha a58616bc5ab5)
  - homepage: https://voicevox.hiroshiba.jp/ (fetched 2026-08-29T09:37:54.981156+00:00, sha b16c2d671a96)
- Data as of 2026-08-30T08:39:29.467469+00:00.