MUSIC & PRACTICE TOOLS
Audio Key Changer
Open a song, choose how many semitones to move it, and press play. Save the result when the new key sounds right.
KEY
Change semitones
0 · original key
PLAY & TRIM
Listen and mark the part you want
Open an audio file to begin.
MY SOLAUDIOLAB SETTINGS Checking…
Save named key, trim, output and text metadata settings. Audio and cover images stay on this device.
Your current settings remain in this tab.
The audio tool works without an account.
Sign in with Google to saveChoose an audio file to enable saving.
Change the key of an MP3 without changing tempo
This browser tool transposes an audio file from one semitone to one octave up or down while keeping the original playback length. Use it to make practice tracks, match a singer’s range, or try a song in another key.
Maximum gain or a louder compressed version
Current Level keeps the edited audio level unchanged. Maximum Gain raises the peak safely without compression, while Loud uses linked compression before final peak normalization. Choose one version when saving.
Private, local audio processing
Decoding, pitch shifting, trimming, leveling, metadata editing, previewing, and file creation happen in this browser. My SolAudioLab saves only the named settings you choose, never the audio or cover image.
Feedback
How was this tool?
A quick rating helps improve this tool.
Written comments may appear on the public Comments page. Do not include personal information.