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Browser Extensions & Plugins

Key Changer

Change the key of audio in your Chrome tab while keeping vocals natural

Community votes
0
DR by Ahrefs
2 no change since last check

Ahrefs Domain Rating benchmarked 3 Nov 2026, rebuilt 3 Nov 2026.

A Chrome extension that shifts song pitch in real time by up to 12 semitones without changing playback speed, preserving natural vocal character.

What it is

Screenshot of the Key Changer homepage
keychanger.app, as visitors see it

Key Changer is a Chrome extension that lets you change the key of songs playing in your browser. It shifts pitch from −12 to +12 semitones in real time without affecting playback speed, and includes fine-tuning adjustments of ±50 cents. The extension features a "Keep vocals natural" mode that preserves a singer's vocal character when the pitch changes, preventing voices from sounding cartoonish or unnaturally heavy.

The extension works with audio on YouTube, YouTube Music, Spotify Web, SoundCloud, and many other sites. It processes audio locally in your browser using WebAssembly, so no data is uploaded. Video stays synchronized with the processed audio, and your pitch preferences are remembered for each song. Keyboard shortcuts (Alt+Shift+↑ and Alt+Shift+↓) allow quick adjustment, and shortcuts can be customized in Chrome settings.

What it is built with

  • Pitch shift from −12 to +12 semitones
  • Fine-tuning by ±50 cents
  • Keep vocals natural mode enabled by default
  • Preserves playback speed while changing pitch
  • Works with YouTube, YouTube Music, Spotify Web, SoundCloud
  • Video stays synchronized with processed audio
  • Remembers pitch preferences for each song
  • Keyboard shortcuts for pitch adjustment
  • Processes audio locally with no uploads
  • Powered by Key Changer Engine for natural pitch shifting

Pricing

Pricing model: Free

Key Changer metrics

Benchmarks for keychanger.app: Ahrefs Domain Rating and Majestic link data, with the change since the last build.
MetricValue
Domain Rating2 no change since last check
Trust Flow0 no change since last check
Citation Flow12 no change since last check
Referring domains2 no change since last check
External backlinks3 no change since last check

Ahrefs Domain Rating benchmarked 3 Nov 2026, rebuilt 3 Nov 2026. Majestic benchmarked 3 Nov 2026, rebuilt 3 Nov 2026. Link data built by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.

Key Changer domain build sheet

Open the build sheet
Public RDAP record, last read 3 Nov 2026, 13:50 UTC.
Domain age28 days
Registered
Expires
RegistrarPorkbun LLC
DNSSECNot signed

Inspect keychanger.app's registration

Key Changer after-launch build log

Since Key Changer launched on Maker Launches on 3 November 2026, these are the figures we have tracked.

Domain Rating (Ahrefs)
2
First measured 3 Nov 2026
Trust Flow (Majestic)
0
First measured 3 Nov 2026
Referring domains (Majestic)
2
First measured 3 Nov 2026

Day 0 since launch. Next receipt: day 30, 3 Dec 2026. We show what changed, not what caused it: many things affect these numbers. Nothing here is estimated.

Biggest gains on Maker Launches

Questions from the bench

How do I change the key of a song?
Play a song in a tab, open the extension and move the pitch up or down by semitones. Each step is one semitone; ±12 semitones covers a full octave in either direction. Playback speed stays unchanged.
Does Key Changer change playback speed?
No. Pitch and playback speed are controlled separately. Changing pitch does not make the song play faster or slower.
How far can I change the pitch?
You can shift from −12 to +12 semitones in steps of one semitone. Fine tuning adds an adjustment from −50 to +50 cents.
What does Keep vocals natural do?
It helps a singer keep a similar vocal character when pitch changes. Without it, a direct pitch shift can make voices sound more cartoonish when shifted upward and heavier when shifted downward. Keep vocals natural is enabled by default.
Does Key Changer send my audio or browsing data anywhere?
No. Audio is processed locally and is never recorded or uploaded. Pitch preferences and extension settings are stored locally in Chrome; no account is needed.

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