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Online Key and BPM Finder
Plus BPM & Key Change

Key & BPM Finder and Changer
Step 1:
Select a File

Acceptable formats: mp3, .wav, m4a, wma, flac (60 Mb or smaller)

Step 2:
Key/BPM Results

Because the Time Signature (e.g. 4/4 or 7/8) of the uploaded file is not know the bpm detected may be half or twice the reported value depending upon whether a quarter or eighth note is counted as a beat.

Step 3:
Adjust
Pitch or Key Change
0

Pitch changes are expressed in semi-tones (1/2 steps) such as 1, 2, -1, etc, or cents (.01)

Tempo Change
100

Tempo changes are expressed as percentage % of the original

Play Original File
Preview Changes
Step 4:
Process

Online Key, Pitch and Tempo Changer FAQs

How does the key changer work?

You can change the key of a song in semitones (half steps) or in cents, which are 1/100th of a semitone, for finer control. You can adjust tempo at the same time as key, then preview your changes before processing and downloading the final file.

Is the key and tempo changer free?

You can try it on a free trial basis by signing up for a free account, which lets you process five files at no cost. After that, you can choose from several paid options, including one-time and subscription plans.

Can I preview my changes before downloading?

Yes. Once you've set your key and tempo adjustments, you can preview the result before processing the file and downloading it to your computer.