MuScriptor
MuScriptor: A flexible open transcription stack for developers, musicians, and self-hosters. Ranked #3 of 29 in AI Music Transcription Software by our editors (9.0/10); pricing: Free plan; best for developers and self-hosters needing open transcription.
At a glance
- Editor score9.0 / 10
- PricingFree plan
- Best forDevelopers and self-hosters needing open transcription
- Free planYes
- Paid fromFree
- Facts checked20 Sep 2026
Where it wins
- Transcribes multiple instruments into MIDI and sheet-music outputs
- Generates PDF scores, MusicXML, and tablature for fretted instruments
- Offers web, command-line, Python, and self-hosted access
Where it doesn't
- Model weights use a non-commercial CC BY-NC 4.0 license
- Self-hosting requires running the application locally
- Command-line and Python access favor technically oriented workflows
Our verdict on MuScriptor
MuScriptor is an open-source AI music transcription model and web application from Kyutai and Mirelo. It accepts uploaded recordings and transcribes notes played by each instrument into MIDI and sheet-music outputs. The product is aimed at developers, musicians, and technical users who want an open transcription workflow rather than a closed service. It supports web, Windows, macOS, and Linux, with audio uploads in MP3, WAV, FLAC, OGG, M4A, AIFF, and Opus formats.
Its main strength is output breadth. Alongside audio-to-MIDI conversion, MuScriptor can generate downloadable PDF scores, MusicXML files, and tablature for guitar and other fretted instruments. That makes it suitable for workflows that move from recorded audio into editable notation, printable scores, or instrument-specific parts. Command-line transcription, Python package access, and a self-hosted web interface extend the product beyond a browser-only demo and give technical teams more ways to integrate or operate it.
The licensing model deserves careful attention. The code is MIT-licensed, but the model weights use a non-commercial CC BY-NC 4.0 license, which limits suitability for commercial deployments involving those weights. The hosted demo is free, while self-hosting provides a local route for users who want more control over the application. MuScriptor is a strong fit for developers and self-hosters needing open, multi-instrument transcription with MIDI and notation outputs. Users seeking a commercial model license or a primarily nontechnical workflow should consider alternatives with licensing and operating terms designed for those needs.
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MuScriptor pricing
MuScriptor fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Notation outputs | Not verified |
| Polyphonic transcription | Yes |
| Chord detection | Not verified |
| Tablature output | Yes |
| Maximum audio length | Not verified |
| Supported platforms | web, windows, macos, linux |
| Audio upload formats | MP3, WAV, FLAC, OGG, M4A, AIFF, Opus |
| Deployment | Cloud, Self-hosted |
| Platforms | Web, Windows, macOS, Linux |
| Support | Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | muscriptor.kyutai.org |
| Facts checked | 20 Sep 2026 |
Alternatives to MuScriptor
- Klangio Transcription StudioA broad notation tool with polyphonic transcription, tabs, exports, and mobile access.9.4
- AnthemScoreA broad transcription toolkit for turning audio into editable notation across major platforms.9.2
- ScoreCloudA flexible notation workspace for transcription, arranging, and collaboration.8.8
See all MuScriptor alternatives →
MuScriptor vs the competition
- MuScriptor vs Klangio Transcription Studio
- MuScriptor vs AnthemScore
- MuScriptor vs ScoreCloud
- MuScriptor vs Fraunhofer Automatic Music Transcription
- MuScriptor vs Melody Scanner
- MuScriptor vs Wind2Notes
Compare MuScriptor with any tool side by side →
Also Ranked In
MuScriptor is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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