Maintained by Mayer · Last updated 2026-09-28
Every tool on Online Pitch Changer runs inside your browser. Your audio, video and microphone sound are processed on your own device and are never uploaded, to us or to anyone else. The tool code sends nothing over the network and saves nothing in your browser’s storage, so closing the tab deletes everything. This page shows what that means for each kind of tool.
Each tool type at a glance
| Tool type | What you give it | What leaves your device | What is left afterwards |
|---|---|---|---|
| Audio tools, e.g. the Audio Pitch Changer, MP3, karaoke and key tools | An audio file (or the sound of a video file) | Nothing | Only the file you choose to download |
| Video Pitch Changer | An MP4, MOV or WebM file | Nothing | Only the video or sound file you download |
| Microphone tools, e.g. the Vocal Pitch Changer, Vocal Range Test, Voice Type Test, Song Key Finder | Live microphone sound, after you allow it | Nothing | Nothing, unless you download a recording |
| YouTube Pitch Changer | A YouTube link | The video ID goes to YouTube when its player loads | Nothing. No download is offered |
| Calculators and charts, e.g. semitones, keys, chords | Notes, keys or numbers | Nothing | Nothing |
Audio and video files
- You choose a file. The browser reads it from your disk into the page’s memory; there is no upload step.
- The browser decodes it, and the tool shifts the pitch there, on your device.
- The Video Pitch Changer copies the picture unchanged and encodes only the new sound, also in your browser.
- You listen to the preview and, if you want, download the result.
Because everything is held in your device’s memory, the tools set size limits: 200 MB and 10 minutes on the Audio Pitch Changer, 500 MB and 15 minutes on the Video Pitch Changer. How the processing itself works, and how accurate it is, is on How It Works.
Microphone input
- Nothing is heard until your browser asks for microphone permission and you allow it. While the microphone is on, the browser shows its own indicator.
- The sound is analysed or processed in the page. The Voice Type Test and the Vocal Range Test only measure pitch and keep no recording.
- A recording you make in the Vocal Pitch Changer stays in the page’s memory until you reload or close the tab. It is saved to your device only if you download it.
- You can revoke the permission at any time in your browser’s site settings for onlinepitchchanger.com.
What happens with a YouTube link
- The tool reads the video ID (and a start time, if the link has one) from the link inside your browser. The link is not sent to this site’s server.
- It loads YouTube’s official player: the control script from youtube.com and the video from youtube-nocookie.com. YouTube receives the video ID, your IP address and sets its own cookies, listed on the Cookie Policy.
- For the live pitch change (Chrome or Edge on a computer) you press Start. A small “Pitch sound” window opens and the browser asks you to share this tab with its sound. The tool uses only the sound; the picture track is switched off as soon as sharing starts.
- The tab’s sound is shifted in the “Pitch sound” window and played from there. Nothing is recorded, saved or uploaded.
- Stop, closing the window or ending the share in your browser stops everything; the video then plays at its original pitch.
The tool never downloads a YouTube video or its audio. On phones, Safari and Firefox, where tab sound cannot be shared, it only plays the video and shows the planned key.
Downloads
When you press download, the tool builds the file in your browser and hands it to your browser’s normal download, which saves it to your device. From then on the file is yours; no copy is sent anywhere. Files you open are never changed: every result is a new file.
What we cannot see
- Your files, their names and their content.
- Your microphone sound and any recording you make.
- The results you create or download.
- The sound of a YouTube video while you shift it.
What the site does receive (analytics after your consent, server logs, emails) is set out in the Privacy Policy.
Connection security
Every page is served over HTTPS; plain http addresses redirect to https, and our check on 2026-09-28 negotiated TLS 1.3. HTTPS protects pages on their way to you. It cannot protect against malware or a harmful browser extension already on a device, so keep your browser up to date.
Report a security problem
If a tool seems to behave differently from this page, or you find a security issue, email support@vocaltoollab.com with the page address, what happened, the steps to repeat it and your browser and device. Please do not send private recordings or passwords. You can also use the contact page. Back to the homepage tools.