Free Online 3D Audio
Wider, deeper, more spatial sound.
Drag & drop your audio file here
or
Max file size: 100 MB · MP3, WAV, FLAC, OGG
Original
beats per minute
musical key
Blends panning motion, delay wobble and reverb. Higher values sound wider and more spacious.
Processing…
Result
How it works
The 3D Audio effect widens and deepens ordinary stereo using three layered techniques: a slow panning LFO that gently moves the image, a short delay whose timing wobbles slightly (adding chorus-like depth), and a convolution reverb tail that places the sound inside a believable space. Together they create the impression of sound existing in a room rather than inside your headphones.
A single intensity slider crossfades all three layers from subtle widening to full immersive spaciousness, so you can dial in anything from a gentle live feel to a dramatic ambient wash - all in real time, with no rendering.
Everything runs client-side on a Web Audio graph in your browser: your audio is processed locally, never leaves your device, and nothing is uploaded to a server.
Frequently asked questions
What makes audio sound "3D"?
True 3D audio needs special binaural recordings, but this effect fakes spaciousness convincingly: slow stereo panning motion, a subtly wobbling short delay (chorus-like depth), and convolution reverb that suggests a physical space around the sound.
Do I need headphones?
Headphones give the strongest effect, but the widening and depth are audible on speakers too. Higher intensity settings translate better to small speakers.
How is this different from 8D audio?
8D audio is a single trick - the sound orbiting your head. 3D audio layers three subtle effects (motion, delay wobble, reverb) for a wider, deeper, more "live" sound without the obvious spinning.
Is there a file size limit? Is it private?
Files up to 100MB are supported. All three effect layers run in real time in your browser - your audio never leaves your device.