ENUNU

At a glance

• Editor score
  6.6 / 10
• Pricing
  Open source
• Best for
  Windows UTAU and NNSVS users
• Paid from
  Free
• Facts checked
  20 Sep 2026

• Where it wins

  • Supports UTAU plugins, NNSVS models, and UST score input
  • Offers direct phoneme input and Japanese hiragana lyric editing
  • Includes timing, pitch, style, and vibrato extensions

• Where it doesn't

  • Windows-only desktop workflow
  • Japanese hiragana input limits lyric-language flexibility
  • Requires compatible, locally installed singing models

Our verdict on ENUNU

ENUNU is a Windows desktop UTAU plugin for creators who want to generate singing vocals with NNSVS models. Its workflow centers on opening a UST score, choosing an ENUNU or NNSVS model, editing lyrics or phonemes, and generating a WAV file. The tool is aimed at users already working with compatible UTAU projects, voicebanks, and locally installed singing models rather than creators seeking a standalone, broad-platform vocal editor.

Its strongest area is workflow depth within the UTAU and NNSVS ecosystem. ENUNU supports UST input, Japanese hiragana lyrics, direct phoneme entry, and WAV generation. Extensions add timing repair, consonant-velocity adjustment, pitch smoothing, style shifting, vibrato, and voice-color flags. That combination gives experienced UTAU users more control over timing, expression, and vocal shaping without moving away from a score-based workflow. Commercial use is allowed, while each character or voice model remains subject to its own terms.

ENUNU is open-source and MIT-licensed, with no paid tier to compare. Its main trade-offs are platform and ecosystem scope: the software is Windows-only, supports Japanese hiragana input, and depends on compatible singing models installed locally. Those requirements make it a focused choice for Windows users with UTAU or NNSVS materials, but a less suitable option for creators who need vocal input, broader lyric-language support, other platforms, or a more self-contained generator. Choose ENUNU for model-based UTAU production and detailed timing and pitch extensions; consider an alternative when flexibility beyond that workflow matters more.

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

ENUNU pricing

ENUNU fact sheet

Alternatives to ENUNU

• LyricToMelody AIA broad songwriting workspace for building vocal drafts, arrangements, and DAW-ready exports.9.4
• Synthesizer V Studio 2 ProA focused desktop tool for precise editing of synthesized vocals.9.2
• ACE StudioA broad desktop toolkit for AI singing generation, cloning, conversion, and vocal editing.9.0

See all ENUNU alternatives →

Featured on iTechGuides

ENUNU is listed in our AI Singing Voice Generators directory. Add the badge to your site — it links back to this page.

<a href="https://www.itechguides.com/products/enunu/"><img src="https://www.itechguides.com/best/badge/enunu.svg" alt="Featured on iTechGuides" width="230" height="46"></a>

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update