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PitchKey

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Overview

Real-time pitch shifter for YouTube. Transpose any video by ±12 semitones and control playback speed independently.

PitchKey is a real-time pitch shifter for YouTube. Move any video up or down by up to 12 semitones (one octave) without changing tempo, and adjust playback speed independently from 0.25x to 4x. Built for musicians, vocalists, and music students. WHO IT'S FOR • Singers transposing songs to a comfortable vocal range • Guitarists and pianists matching a key during practice • Music students working on ear training and key recognition • Producers reverse-engineering arrangements • Anyone who wants to slow a track down for close listening — without the chipmunk effect FEATURES • ±12 semitones (one full octave each direction) • Tempo-preserved pitch shifting (high-quality WSOLA algorithm) • Speed: 0.25x to 4x via native YouTube playback rate • Pitch stays accurate when you change speed • Logarithmic speed slider — 1x sits at center for fine control • Persistent settings remembered between sessions • One-click reset PRIVACY PitchKey is local-only. No analytics, no telemetry, no accounts, no network requests. Your settings are stored on your device and never transmitted. OPEN SOURCE PitchKey uses the open-source SoundTouchJS audio worklet (LGPL-2.1) for pitch shifting. Full license attribution is included in the extension package. DISCLAIMER PitchKey is an independent project and is not affiliated with, endorsed, sponsored by, or otherwise officially connected to YouTube, Google LLC, or Alphabet Inc. "YouTube" is a trademark of Google LLC, used here only to describe the platform PitchKey operates on. This is a beta release (v1.0). Currently supports YouTube only; Spotify Web, SoundCloud, and other sites are planned for future versions.

Details

  • Version
    1.0.0
  • Updated
    May 8, 2026
  • Size
    22.81KiB
  • Languages
    English
  • Developer
    Email
    pvdickson03@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

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The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes
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