OnKey – I'm a bad singer, so I built an app to show where I'm off-key
Learn to sing the songs you love. A free, open-source singing trainer for Mac that listens to the music you play. - dsmurrell/onkey
OnKey – I'm a bad singer, so I built an app to show where I'm off-key launched on October 22, 2026 with 215 votes, #41 of 3,597 launches that month and more than 99% of that year's launches.
In plain words
OnKey is a free, open-source singing trainer for Mac that listens to music and provides real-time feedback on pitch accuracy. It helps users learn to sing songs they enjoy by identifying when their vocals are off-key. The app is designed for singers looking to improve their performance and works by analyzing audio as music plays.
written from the facts on this page · October 2026
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