OpenUtau is an open source editing environment for UTAU community with modern user experience.

It is strongly recommend to go through a few Wiki pages before use:

• Getting-Started
• Resamplers
• Phonemizers
• FAQ

Tried OpenUtau and not satisfied? Don't just walk away! You could help shape it:

• Report issues on Discord or Github.
• Suggest features on Discord or Github.

Have coding skills? Don't just fork and keep it to yourself!

• Contribute fixes through Pull Requests.
• See the roadmap on Trello and discuss it on Discord.

API Document

Fluent Navigation Using Scroll Wheel

Feature-Rich Midi Editor

Vibrato Editing

Render and Playback

Redo Undo

Other Actions

• Scroll wheel on the measure bar (the bar with numbers right below the horizontal scroll bar) to zoom horizontally.
• Scroll wheel on the widget right above the vertical scroll bar to zoom vertically.
• Press Ctrl key to select multiple notes.
• Press Space key anywhere to start playing or pause.

• Modern user experience.
• Selected compatibility with UTAU technologies.
  • OpenUtau aims to solve problems in less laborious ways, so don't expect it to replicate exact UTAU featuers.
• Intelligent VCV, CVVC an other voicebank sampling technique support.
• Internationalization, including UI translation and file system encoding support.
• Smooth preview/rendering experience.
• A easy to use plugin system.
• An efficient sample connecting engine (a.k.a. wavetool).
• An efficient resampling engine interface.
• A Windows version.

• Resampling engines (a.k.a resampler).
• Full feature digital music workstation.
• OpenUtau does not strike for Vocaloid compatibility, other than limited features.