Open-source credits

Extractune runs on the work of these open-source projects. Each is used under its own licence, linked below, and keeps its authors' copyright. Extractune's own code and design are © 2026 Extractune, all rights reserved.

• HTDemucs · the model that splits the voice from the music

  © Meta Platforms, Inc. and affiliates · MIT License

• demucs-web · HTDemucs exported to run in a browser

  © timcsy · MIT License

• ONNX Runtime Web · runs the model on your device

  © Microsoft Corporation · MIT License

• Mediabunny · reads videos and writes the audio files, including MP3

  © Vanilagy · Mozilla Public License 2.0

• Signalsmith Stretch · speed and key changes in the studio (our copy has one fix, marked in the file)

  © Signalsmith Audio Ltd. · MIT License

• fflate · the zip of all four parts

  © Arjun Barrett · MIT License

• Next.js · the site framework

  © Vercel, Inc. · MIT License

• React · the interface

  © Meta Platforms, Inc. and affiliates · MIT License

• Base UI · accessible menus, dialogs and sliders

  © Material-UI SAS · MIT License

• Motion · animations

  © Motion B.V. · MIT License

• Sonner · notifications

  © Emil Kowalski · MIT License

• next-themes · light and dark mode

  © Paco Coursey · MIT License

• Lucide · icons

  © Lucide Icons and Contributors · ISC License

• class-variance-authority · component styles

  © Joe Bell · Apache License 2.0

• tw-animate-css · animation styles

  © Wombosvideo · MIT License

• Vercel Web Analytics · cookieless page counts

  © Vercel, Inc. · MIT License

• Inter · the text font

  © The Inter Project Authors · SIL Open Font License 1.1

• Space Grotesk · the headings font

  © The Space Grotesk Project Authors · SIL Open Font License 1.1

• Geist Mono · the monospaced font

  © Vercel, Inc. · SIL Open Font License 1.1

Mediabunny is used unmodified under the Mozilla Public License 2.0; its source code is at the link above. Questions about any of this can go to support@extractune.com.