Transpose any YouTube video in real time. Shift pitch, fine-tune by cents, and isolate stems — without changing speed. Built for musicians, by musicians.
Every feature engineered for practicing musicians, from beginners learning riffs to pros transcribing sessions.
Transpose any YouTube video up or down by up to 12 semitones instantly, without reloading or pre-processing anything.
±12 SEMITONESDial in exactly the right pitch with ±100 cent fine-tune control. Perfect for matching alternate tunings or non-standard instruments.
±100 CENTSSlow down to 0.25× or speed up to 3× while pitch stays locked. Learn complex passages at your own pace.
0.25× – 3×Extract vocals, bass, drums, or melody from any track. Practice with isolated stems or create backing tracks on the fly.
COMING SOONOne click to start capturing. Your settings are remembered across videos and sessions. No login, no subscription, no BS.
ZERO SETUPDeep red dark mode for late-night practice. Fresh green light mode for bright studio sessions. Switch in one tap.
DARK & LIGHTNo accounts, no installs beyond the extension, no waiting. Just open YouTube and play.
Add Tonify to Chrome from the Web Store in one click. Free, lightweight, no account required.
Navigate to any song, tutorial, or performance. Click the Tonify icon in your toolbar.
Hit START CAPTURE, then slide to your target key. Audio transforms instantly — no lag.
"Finally I can learn songs in my key without downloading anything sketchy. Instant transpose, works on everything."
"The fine-tune cents feature is a game changer. I teach students on instruments with different tunings — this lets me match any reference instantly."
"Slowing songs down without pitch shift is something I have needed for years. The UI is clean and it just works."
Free forever. No account needed. Add it to Chrome and start playing in seconds.