How do I find the BPM of a song?

Upload your audio file to Toneify and we'll instantly detect the BPM (beats per minute) using advanced audio analysis. Supports MP3, WAV, FLAC, and more.

How do I find the key of a song?

Simply upload your song to Toneify and our analyzer will detect the musical key and scale (major or minor) automatically. Perfect for DJs and producers.

Is this BPM finder free?

Yes, Toneify is completely free to use. No signup required. Your files are processed in your browser and never uploaded to our servers.

Can I convert audio to MIDI?

Yes! Toneify includes a free audio to MIDI converter. After analyzing your song, you can view the detected notes in a piano roll and export them as a MIDI file.

What is the Camelot Wheel?

The Camelot Wheel is a tool used by DJs for harmonic mixing. It shows which musical keys are compatible for mixing. Toneify detects the key and provides the Camelot code.

What is a pitch shifter?

A pitch shifter is an audio tool that changes the pitch (musical key) of a song without changing its speed or tempo. This allows you to transpose music to a different key while keeping the same playback duration.

How many semitones can I shift?

Our pitch shifter supports shifting from -12 to +12 semitones, which is a full octave in either direction. One semitone equals one piano key or one fret on a guitar.

Does pitch shifting affect the speed of the song?

No, our pitch shifter uses time-stretching technology to change the pitch independently of the speed. The song duration remains exactly the same.

Is the pitch shifter free to use?

Yes, our pitch shifter is completely free with no signup required. All processing happens in your browser for privacy.

Pitch Shifter

Change the pitch of audio without changing the speed

Drop audio file or click to browse

MP3, WAV, FLAC, OGG, M4A

How to Change the Pitch of a Song

Upload Your Audio

Drag and drop any audio file (MP3, WAV, FLAC, OGG, M4A) or click to browse your files.

Select Semitones

Use the slider or quick buttons to shift pitch. +1 raises by one semitone, -1 lowers by one semitone.

Preview & Download

Click play to hear the result in real-time, then download your transposed audio as a WAV file.

Why Use a Pitch Shifter?

Singers & Vocalists

Transpose songs to match your vocal range. If a song is too high, shift it down a few semitones. If it is too low, shift it up. Perfect for karaoke practice and live performances.

Musicians & Guitarists

Change the key of backing tracks to match your instrument tuning. Play along with songs in a more comfortable key without retuning or using a capo.

DJs & Producers

Match keys between tracks for harmonic mixing. Use pitch shifting to create mashups, remixes, or transition smoothly between songs in different keys.

Music Teachers

Adapt songs for students at different skill levels. Transpose difficult pieces to easier keys, or adjust playback to match student instruments.

Semitone Reference Chart

A semitone is the smallest interval in Western music - the distance between two adjacent piano keys or guitar frets.

Shift	Interval	Example (from C)
+12	Octave up	C → C (higher)
+7	Perfect fifth	C → G
+5	Perfect fourth	C → F
+2	Whole step	C → D
+1	Half step	C → C#
0	Original	C → C
-1	Half step down	C → B
-12	Octave down	C → C (lower)

Frequently Asked Questions

What is pitch shifting?

Pitch shifting changes the musical pitch (highness or lowness) of audio without changing its speed or duration. This is different from simply speeding up or slowing down audio, which affects both pitch and tempo together. Our pitch shifter uses digital signal processing to transpose audio while maintaining the original tempo.

How do I know which key to transpose to?

Our pitch shifter automatically detects the key of your uploaded song. If you are a singer, try shifting until the song feels comfortable for your voice. Guitarists often shift by -2 (down one whole step) to match drop D tuning, or use +5 to simulate a capo on the 5th fret.

Will pitch shifting affect audio quality?

Small pitch shifts (1-4 semitones) typically sound very natural. Larger shifts may introduce some artifacts, especially in vocals. For best results, use the smallest shift needed to achieve your goal. The output is saved as uncompressed WAV for maximum quality.

What audio formats are supported?

We support all common audio formats including MP3, WAV, FLAC, OGG, M4A, AAC, and WebM. You can also upload video files - we will extract and process the audio track automatically.

Is my audio uploaded to a server?

No. All processing happens entirely in your web browser using the Web Audio API. Your files never leave your device, ensuring complete privacy. This also means the tool works offline once the page is loaded.