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8Dfy
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8Dfy

A browser extension that wraps sound around your head.

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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.

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Example Image
Example Image
Example Image
Example Image
Example Image
Example Image

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.

Use Cases

  • 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.
  • Add binaural beats to music: Overlay focus, relax, meditate, or sleep tone layers on your tracks for focused work or relaxation sessions.
  • 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.

Comments

This is actually pretty cool. The fact that everything runs directly in the browser makes it really easy to try without having to set anything up. I’m curious to see how the 8D effect feels across different types of music.

The browser-based approach is what caught my attention here. Being able to add 8D and HRTF effects directly to YouTube or Apple Music without sending the audio off-device makes this much more interesting than a typical audio effect tool. The Auto DJ feature is a nice bonus too.

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Founder @wahio.design @indiecrafts.dev |...

Pretty cool ! I really liked how you tacle this issue !

custom-img
Founder @wahio.design @indiecrafts.dev |...

Pretty cool ! I really liked how you tacle this issue !

custom-img
Ghibli Style Image Generator—Create Stun...

The Auto DJ feature is a nice bonus too.Thank you for sharing!

custom-img
Building PZERO, saving you money - pzero...

8Dfy combines HRTF 3D positioning with in-browser processing, so the audio effect stays on-device. If you want to keep business AI spend in check, PZERO is at pzero.studio.

custom-img
EasyPDFNex PDF Tools

The beat-matched Auto DJ feature sounds really cool. How does it perform with different music genres?

The client-side Web Audio approach is the part that stands out. Keeping HRTF and 8D processing on-device means you can spatialize YouTube or Apple Music without shipping the stream anywhere, which is a rare privacy choice for this category. Curious how Auto DJ holds up on tracks without a clean kick—does beat detection fall back to a fixed crossfade when the transient is weak?

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I am a SaaS programmer

Interesting approach to spatial audio—especially the browser-based processing and support for YouTube/Apple Music. The 8D and HRTF modes sound useful for focused listening; curious how you handle browser performance on long playlists.

custom-img
Constraint Portfolio Kit — budget alloca...

The cross-platform coverage is compelling—especially Spotify plus YouTube Music—and the binaural/3D positioning sounds like a thoughtful way to make ordinary listening feel spatial. Curious how you handle tracks that already have spatial-audio mixes?

custom-img
Software engineer building cool products

Can you explain 8D a bit clearer? When I think of it I think of 3d but with sensory, noise, and feeling? Because I don't understand this my guess is that most people also do not.

custom-img
I build & lead the engineering behind AI...

The privacy-first approach really sets this apart. Keeping all audio processing client-side via the Web Audio API removes a huge trust issue with most browser audio tools. The Auto DJ beat-matching is clever too - it turns playlist management into something that feels intentional rather than jarring.

custom-img
SEO/AEO/GEO and Digital Marketing Expert...

Love the privacy-first approach with everything running client-side. Curious: when beat detection struggles with jazz or live recordings, does Auto DJ fall back to a simple crossfade or force a hard cut?

custom-img
Building dcs4, a 4-letter .com availabil...

The spatial-audio positioning sounds compelling—especially the ability to work across YouTube and Apple Music without sending audio off-device. Have you noticed the biggest difference with headphones that support spatial audio, or does the effect work well on standard stereo headphones too?

The 3D positioning and device-local processing sound like a thoughtful way to make spatial audio accessible without sending listening data to a server. Curious whether you plan presets for different headphones or listening environments?

custom-img
Founder of Teyro, Obsessed with building...

cool product, i did not even know this was posible

The Auto DJ beat-matching and 8D rotation features are an interesting combination, especially the way the transitions are designed to preserve the flow between tracks. I’m curious how well the beat detection handles songs with less consistent rhythms or live recordings. The client-side processing is also a nice touch for privacy.

custom-img
Building Pure Macros, a free calorie and...

Really like that this runs entirely client-side via the Web Audio API, no audio ever leaves the device, which is a nice privacy angle most "enhance my music" extensions skip. Following up on Blogger sara's question about beat detection on less consistent rhythms: does the Auto DJ transition logic fall back to a simpler crossfade when it can't confidently lock onto a beat, or does it still force a hard cut? That edge case is what would make or break it for jazz or live recordings.

custom-img
Solo founder

I didn't even know that my headphones can do that!

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Comments

This is actually pretty cool. The fact that everything runs directly in the browser makes it really easy to try without having to set anything up. I’m curious to see how the 8D effect feels across different types of music.

The browser-based approach is what caught my attention here. Being able to add 8D and HRTF effects directly to YouTube or Apple Music without sending the audio off-device makes this much more interesting than a typical audio effect tool. The Auto DJ feature is a nice bonus too.

custom-img
Founder @wahio.design @indiecrafts.dev |...

Pretty cool ! I really liked how you tacle this issue !

custom-img
Founder @wahio.design @indiecrafts.dev |...

Pretty cool ! I really liked how you tacle this issue !

custom-img
Ghibli Style Image Generator—Create Stun...

The Auto DJ feature is a nice bonus too.Thank you for sharing!

custom-img
Building PZERO, saving you money - pzero...

8Dfy combines HRTF 3D positioning with in-browser processing, so the audio effect stays on-device. If you want to keep business AI spend in check, PZERO is at pzero.studio.

custom-img
EasyPDFNex PDF Tools

The beat-matched Auto DJ feature sounds really cool. How does it perform with different music genres?

The client-side Web Audio approach is the part that stands out. Keeping HRTF and 8D processing on-device means you can spatialize YouTube or Apple Music without shipping the stream anywhere, which is a rare privacy choice for this category. Curious how Auto DJ holds up on tracks without a clean kick—does beat detection fall back to a fixed crossfade when the transient is weak?

custom-img
I am a SaaS programmer

Interesting approach to spatial audio—especially the browser-based processing and support for YouTube/Apple Music. The 8D and HRTF modes sound useful for focused listening; curious how you handle browser performance on long playlists.

custom-img
Constraint Portfolio Kit — budget alloca...

The cross-platform coverage is compelling—especially Spotify plus YouTube Music—and the binaural/3D positioning sounds like a thoughtful way to make ordinary listening feel spatial. Curious how you handle tracks that already have spatial-audio mixes?

custom-img
Software engineer building cool products

Can you explain 8D a bit clearer? When I think of it I think of 3d but with sensory, noise, and feeling? Because I don't understand this my guess is that most people also do not.

custom-img
I build & lead the engineering behind AI...

The privacy-first approach really sets this apart. Keeping all audio processing client-side via the Web Audio API removes a huge trust issue with most browser audio tools. The Auto DJ beat-matching is clever too - it turns playlist management into something that feels intentional rather than jarring.

custom-img
SEO/AEO/GEO and Digital Marketing Expert...

Love the privacy-first approach with everything running client-side. Curious: when beat detection struggles with jazz or live recordings, does Auto DJ fall back to a simple crossfade or force a hard cut?

custom-img
Building dcs4, a 4-letter .com availabil...

The spatial-audio positioning sounds compelling—especially the ability to work across YouTube and Apple Music without sending audio off-device. Have you noticed the biggest difference with headphones that support spatial audio, or does the effect work well on standard stereo headphones too?

The 3D positioning and device-local processing sound like a thoughtful way to make spatial audio accessible without sending listening data to a server. Curious whether you plan presets for different headphones or listening environments?

custom-img
Founder of Teyro, Obsessed with building...

cool product, i did not even know this was posible

The Auto DJ beat-matching and 8D rotation features are an interesting combination, especially the way the transitions are designed to preserve the flow between tracks. I’m curious how well the beat detection handles songs with less consistent rhythms or live recordings. The client-side processing is also a nice touch for privacy.

custom-img
Building Pure Macros, a free calorie and...

Really like that this runs entirely client-side via the Web Audio API, no audio ever leaves the device, which is a nice privacy angle most "enhance my music" extensions skip. Following up on Blogger sara's question about beat detection on less consistent rhythms: does the Auto DJ transition logic fall back to a simpler crossfade when it can't confidently lock onto a beat, or does it still force a hard cut? That edge case is what would make or break it for jazz or live recordings.

custom-img
Solo founder

I didn't even know that my headphones can do that!

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