About this site
| Site name | Vocal Ladder |
|---|---|
| URL | https://ktkwmr.com/vocalladder/ |
| Operator | ktkwmr (individual developer) |
| What we offer | A free web app for vocal warm-ups: a piano plays singing exercises and moves them up or down a half step at a time |
| Contact | GitHub Issues |
Contact
For questions, bug reports, and suggestions, please open an issue on GitHub Issues. A GitHub account (free) is required.
Issues are public. Do not include personal information. If an exercise plays wrongly, the notes and settings (for example 1 2 3 4 5 4 3 2 1--, C4 to G4, 100 BPM), your browser, and your device are enough. You can also attach an exported set.
Disclaimer
- We try to make the app accurate, but we do not guarantee that its notes, timing, sounds, or the information on this site are correct or complete. Timing can vary with your device, browser, and Bluetooth headphones or speakers.
- The app plays accompaniment only and does not teach or judge your singing. Warm up within a comfortable range, and stop if your voice hurts or feels tired. For vocal problems, ask a voice teacher or a doctor.
- We are not responsible for any loss or damage resulting from the use of this site.
- Links to other websites are provided for convenience. We are not responsible for their content.
- The content of this site may be changed or removed, and the service may be stopped, without notice.
Copyright
- The app's source code is published under the MIT License. Libraries used by the app are listed under Settings → About in the app.
- The text and images on this site are © 2026 ktkwmr.
Privacy
How this site handles information is described in the privacy policy.