YOUR BROWSER. YOUR MUSIC.
Online Pitch Changer
Change pitch and tempo without uploading your audio
- 01 Open
- 02 Adjust
- 03 Export
Open your audio
Drop a track here to find your range
or slow down a tricky part
MP3 · WAV · FLAC · M4A
Up to 250 MB · Browser codec support varies
Default settings · Open a file to activate the controls
Audio stays in your browser · No sign-up
THE TOOL LIBRARY
More ways to shape your sound
18 tools, all in your browser
18 of 18 tools ready to explore
Pitch & effects
Change the key, tempo or atmosphere
06 tools- Pitch ChangerMove a song into your key without changing its tempoLocal audio fileWAV / MP3
- Slowed + ReverbSlow it down, speed it up and give it room to breatheLocal audio fileWAV / MP3
- Reverb & DelayDial in a room, add an echo and keep the full effect tailLocal audio fileWAV / MP3
- 8D AudioMove sound across a stereo field. Best heard on headphonesLocal audio fileWAV / MP3
- Online MasteringBalance tone and dynamics with an adjustable mastering chainLocal audio fileWAV / MP3
- Reverse AudioTurn the whole recording backwards, channel for channelLocal audio fileWAV
Edit & export
Cut, record and prepare the right file
05 tools- Audio TrimmerKeep one section and soften its edges with precise fadesLocal audio fileWAV
- Audio CutterSplit, rearrange and join parts of a single recordingLocal audio fileWAV
- Audio ConverterChoose the format and settings your next destination needsLocal audio fileMP3 / WAV / FLAC / AAC / OGG / AIFF / ALAC
- Audio ExtractorSave the first audio stream from a local video as an MP3Local video fileMP3
- Voice RecorderCapture a microphone take. Pause, listen back and save itMicrophoneWAV / MP3
Analyze & practice
Get in tune and find your timing
05 tools- BPM FinderEstimate the beat, compare half-time and double-time optionsLocal audio fileTempo + confidence
- Song Key FinderEstimate a major or minor key, with confidence and alternativesLocal audio fileKey + confidence
- Tap BPMTap along to the music with your mouse, touch or keyboardNo file neededTempo
- MetronomeKeep a steady pulse with adjustable sounds and beat accentsNo file neededLive click
- Guitar TunerTune one string at a time using your microphoneMicrophoneNote + cents
Separate stems
Make stems and backing tracks for practice
02 toolsLocal file tools accept files up to 250 MB. Decoded audio, available memory, browser codecs and model-specific limits can reduce this. Open a tool for its exact requirements.
FROM SETTINGS TO SOUND
Get more from your music
From track to take
- 01
Open your audio
Choose a local file or drop it into the workspace. Your original stays untouched.
- 02
Find your sound
Adjust the key or tempo and press Play preview. Engines and models download only when needed.
- 03
Save your version
Select Prepare export, then download WAV or MP3. Save your result before leaving the page.
Check your pitch
Play a reference note and hear how semitones change its pitch.
Start with your volume low. No microphone access.
Your audio stays yours
Local processing, with clear limits and no account required.
Does my audio leave this device?
No. These tools decode, analyze and process audio in your browser. PitchChanger does not upload your selected audio or microphone recordings to a processing service.
What still needs a connection?
The website, audio engines and separation models must be downloaded. Some assets may be cached by your browser, but offline operation is not guaranteed. Loading the site and its assets still makes ordinary network requests.
How is website usage measured?
We use Microsoft Clarity to understand page interactions through heatmaps and session replays. Clarity receives usage and device information, with page text masked and analytics and advertising cookies disabled. Audio files and microphone recordings stay on your device. We respect Do Not Track and Global Privacy Control browser signals. See the Microsoft Privacy Statement for how Microsoft handles this data.
What stays in browser storage?
Recording and separation can use temporary browser storage (OPFS). Separation models may be cached between visits. Tools attempt to release temporary files when you reset or leave; interrupted sessions and browser eviction can affect this. Clearing this site’s browser data removes its retained caches and local data.
What should I check before starting?
Keep a copy of your original. Local file inputs have a 250 MB limit; decoded audio, device memory and storage impose additional limits. Stem Splitter needs WebGPU and accepts up to six minutes. Use audio you own or have permission to edit; model separation is an estimate and can introduce artifacts.