Maintained by Mayer · Last updated 2026-09-28
Short answers to the questions people search for most about Online Pitch Changer: whether it is free and safe, what happens to your files, which formats and phones work, how much quality you lose and how the YouTube tool works. Each answer links the page that covers the topic in full.
Cost, safety and privacy
Is Online Pitch Changer free?
Yes. Every tool is free, with no account, no sign-up and no paid plan; nothing is sold on the site. The only limits are technical, such as file size. Browse the tools on the pitch changer tools page.
Is it safe? Are my files uploaded?
Your audio and video are not uploaded. The tools process your file inside your browser, and in every audio, video and microphone tool test we checked that no request left the site while the tool was working. Nothing is stored: close the tab and the file is gone from memory. The site itself loads Google Fonts, and Google Analytics only after you accept it in the cookie banner. See data security for each type of tool and the privacy policy for the data the website collects.
Who runs the site? Are there ads?
Online Pitch Changer is run independently by Mayer. There are no ads, no affiliate links and no sponsored content. If that ever changes, the site’s pages will be updated first. More on the about page.
Files, phones and downloads
Which file types can I use?
Most audio tools open MP3, WAV, M4A/AAC, OGG and FLAC, plus the sound of MP4, MOV and WebM videos. Some browsers cannot open every format (older Safari cannot open OGG, for example). Most audio tools take files up to 200 MB and 10 minutes. To keep the picture, use the Video Pitch Changer: it opens MP4, M4V, MOV and WebM up to 500 MB and 15 minutes.
What do I get when I download?
A WAV file (same sample rate and channels as your file) or an MP3. In our tests the preview you hear matched the downloaded file sample by sample. The video tool saves MP4 or WebM with the picture copied untouched; if your browser cannot write sound into a video, it saves the sound as MP3. The Audio Pitch Changer adds a choice of MP3 bit rate.
Does it work on iPhone and Android? Do I need an app?
No app or install is needed: the tools run in the browser. They are built for current phone browsers and their layout was tested at phone widths, but we have not yet tested them on physical iPhones and Android phones, so please tell us if something fails. Live YouTube pitch change does not work on phones (see below). Phone-specific tips are in how to change pitch on mobile.
Sound quality and semitones
Can I change the pitch without changing the speed?
Yes. The pitch tools keep the tempo unless you choose to change it. In our tests of Change Pitch Without Changing Speed, the tempo of the downloaded files stayed within 0.011 % and the length did not change; that tool also plays the record-player version for comparison.
How many semitones do I need to change key?
Count the semitones between the two keys: C to D is +2, C to G is +7 (or −5 the other way), and 12 semitones make an octave. The semitone chart for key changes lists every pair of keys, and the Semitone Calculator works out any interval for you.
Will changing the pitch lower the quality?
The pitch itself is exact: in our tests every download landed within 0.3 cents (0.003 of a semitone) of the target. But any pitch shift changes the sound a little, more so with large shifts and dense mixes, and it cannot add detail the original lacks. Each MP3 export is a new lossy encode, so pick WAV if you will edit again. The measured numbers and the limits are on how our tools work.
Why does my voice sound like a chipmunk?
Shifting a voice up also moves its resonances (formants), which makes it sound small and thin; shifting down makes it heavier. The Vocal Pitch Changer keeps the formants in place (on by default); on a test vowel it cut the change in vowel shape from 7.6 dB to 2.0 dB.
YouTube, key finding and microphone
Can I change the pitch of a YouTube video?
Yes, live, with the YouTube Pitch Changer. The video plays in YouTube’s own player; nothing is downloaded. When you press Start, your browser asks to share the tab’s sound, and the page shifts it as it plays, about 0.2 seconds behind the picture. This needs Chrome or Edge on a computer: phones, Safari and Firefox cannot share a tab’s sound. YouTube sets its own cookies as soon as the player loads.
How accurate is the key finder?
In our tests the Song Key Finder found 24 of 24 keys in synthetic songs, the right key in songs with drums and in hummed tunes, and the key three real recordings are actually in (one is tuned a semitone below its title). It shows a confidence score; check a low score by ear, because songs that change key or are tuned off standard pitch can mislead any detector.
Does the vocal range test record my voice?
No. The Vocal Range Test asks for microphone permission, analyses the sound live in your browser and uploads nothing. If you open a recording you made earlier, it is analysed on your device too. You can block or remove the permission in your browser settings at any time; without it the microphone tools cannot hear you.
Problems, copyright and contact
Why is a tool not working?
The usual causes are a blocked microphone, a format your browser cannot decode, a file over the limit, or an in-app browser. The troubleshooting page covers the fixes.
Is it legal to change the pitch of a copyrighted song?
Changing the pitch does not change who owns a recording, so the same rules apply as to the original: use music you own, have permission for, or may use under the law where you live. Posting a pitched copy can still be a copyright problem. This is not legal advice; our terms set out the rules for using the tools.
How do I report a bug or a wrong answer?
Email support@vocaltoollab.com with the tool’s address, your browser, device and file type. For general questions and partnerships write to contact@vocaltoollab.com. Both are also on the contact page.