Pitchbender — 440 Hz to 432 Hz

Converts browser audio from 440 Hz to 432 Hz in real time.

Pitchbender shifts your browser's audio from 440 Hz to 432 Hz in real time — −8 Hz, roughly one third of a semitone. Small enough to keep melody and timing intact. Wide enough to change how music feels. How it works Pitchbender uses Chrome's Tab Capture API to intercept the full audio output of any tab — YouTube, Spotify Web, Deezer, SoundCloud — and routes it through a SoundTouch AudioWorklet processor running off the main thread. The result is a clean, artifact-free pitch shift with no change to playback speed. Privacy first Everything happens locally on your device. Pitchbender makes zero network requests. No telemetry, no analytics, no audio ever leaves your browser. Features · Works on any tab — YouTube, Spotify Web, SoundCloud, Deezer and more · One-click toggle directly from the toolbar icon · Icon changes state visually — grey when inactive, lit when 432 Hz is active · Per-tab state — each tab is controlled independently · Manifest V3 — fully compliant with Chrome's latest extension standard Install in 60 seconds Add to Chrome → pin the icon → play anything → the shift is automatic. Bend the internet back to its natural pitch.