{"listing":{"id":"9a0d6695-9a4a-4120-895b-10a2e8ba571c","name":"Key Changer","slug":"key-changer","website_url":"https://keychanger.app","tagline":"Pitch changer for website audio in desktop Chrome","description":"I built Key Changer, a pitch shifter for audio playing on supported websites in desktop Chrome. Singers can try a practice track in a more comfortable key, and musicians can shift recordings for play-along practice while tempo stays unchanged. It works beyond YouTube, including Spotify Web and SoundCloud. Pitch moves from -12 to +12 semitones, with -50 to +50 cents of fine tuning. The optional Keep vocals natural setting helps preserve vocal timbre. It runs on my proprietary WebAssembly engine and is currently free in early access.","categories":["other"],"features":["Shift audio from -12 to +12 semitones","Fine tune from -50 to +50 cents","Keep playback tempo unchanged","Optional Keep vocals natural setting helps preserve timbre"],"pricing_model":"free","pricing_summary":"Currently free in early access","cta_label":"Visit website","screenshot_url":"https://screenshots.azn8.com/screenshots/9a0d6695-9a4a-4120-895b-10a2e8ba571c/48b61a843948c739.webp","screenshot_status":"ready","screenshot_updated_at":"2026-11-01T21:33:24.974Z","status":"live","source":"human","url":"https://azn8.com/listing/key-changer","created_at":"2026-11-01T21:33:17.621Z","updated_at":"2026-11-01T21:33:17.621Z","published_at":"2026-11-01T21:33:17.621Z","featured":false}}