What is 8Dfy?
8Dfy is a browser extension that wraps sound around your head. It takes any song, playlist, or video playing in YouTube, YouTube Music, or Apple Music and applies 8D rotation, multi-band surround, HRTF 3D positioning, or binaural beats so it feels like the audio is moving in space around you. It runs entirely in your browser — no audio data ever leaves your device — and is built by independent developer Harsh Dev.
Key Features
- 8D Rotation Engine — Circular, sine, triangle, and bounce orbit patterns with bio-accurate interaural time delay (0.7ms) and head-shadow filtering for realistic spatial audio.
- Auto DJ beat-matched transitions — After at least 60 seconds, Auto DJ detects a beat, carries 4–8 beats from the outgoing song into the next track, and crossfades with tempo matching for playlist changes that feel mixed.
- Multi-band Surround (Pro) — 3-band crossover keeps bass under 250 Hz planted, mids orbit with rotation, and highs above 2 kHz shimmer; free 60-second previews.
- HRTF 3D Positioning (Pro) — Uses the browser's native HRTF engine for true 3D sound with Orbit, Figure-8, and Drift motion paths.
- Binaural Beats (Pro) — Adds subtle tone layers (Focus 15 Hz, Relax 10 Hz, Meditate 6 Hz, Sleep 3 Hz) under your music, which also land in recordings.
- Export options — Free users get 30-second shareable 1080p MP4 video clips with a live audio-reactive visualizer; Pro unlocks full-length recordings up to 10 minutes per take, lossless WAV (16-bit), and compressed M4A audio.
- Audio controls — Adjustable speed, 8D movement, bass, clarity, and reverb, plus 8 presets with sub-variants (Warm, Deep, Punchy, Intimate, Grand, Cathedral) and a strength slider.
- Client-side processing — Everything runs in-browser via the Web Audio API with zero data sent anywhere, and works even in background tabs.
Who is it for?
- Headphone listeners — Anyone with headphones who wants a more immersive, spatial listening experience on YouTube or Apple Music without buying new gear.
- Music enthusiasts — People who want to explore different audio presets (Warm, Deep, Punchy, etc.) and fine-tune bass, clarity, and reverb in real time.
- DJs and playlist makers — Users who want their YouTube/Apple Music playlists to transition smoothly with beat-aware crossfades and tempo matching via Auto DJ.
- Content creators — Creators who want to produce short 8D audio/video clips (up to 30 seconds free, 10 minutes with Pro) to share on Shorts, TikTok, or social media.
What can you do with 8Dfy?
- Enhance your listening sessions: Turn any YouTube video, playlist, or Apple Music album into a spatial audio experience with rotation, surround, or 3D positioning.
- Create shareable 8D clips: Export a 30-second 1080p MP4 with a live visualizer to post on TikTok, Shorts, or send to friends; Pro extends this to full-length recordings.
- Mix playlists seamlessly: Let Auto DJ wait for a beat, overlap 4–8 beats, and crossfade between tracks so your playlist changes feel like a DJ set.
Pricing
8Dfy is freemium. The core 8D rotation experience is free forever, including 8 presets with sub-variants, bass/clarity/reverb controls, the real-time visualizer, 30-second shareable video samples, and 60-second previews of every Pro mode. Pro is a one-time $4.99 payment that unlocks unlimited Multi-band Surround, HRTF 3D, and Binaural Beats, plus full-length exports (up to 10 minutes as 1080p MP4, WAV, or M4A) and lifetime updates.
FAQ
Do I need headphones for 8Dfy?
Yes. 8D rotation, multi-band surround, HRTF 3D, and binaural beats all rely on sending different signals to each ear, so headphones or earbuds are required. Any pair works.
How do I get a Pro license key?
Click "Get Pro License", pay $4.99 via Gumroad, and you'll instantly receive a license key by email. Paste it into the extension when prompted. It's a one-time payment for lifetime access.
