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AR VR · head to head

AltspaceVR vs Three.js

AltspaceVR logo

AltspaceVR

AR VR

Social VR platform for events and meetups

From
Free
Rated
-
Full reviewWebsite
Three.js logo

Three.js

AR VR

JavaScript 3D library for WebGL and WebXR

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: AltspaceVR shut down permanently on 10 March 2023. Microsoft closed it to concentrate on Microsoft Mesh, and altvr.com now redirects to microsoft.com; Three.js forward rendering pipeline only, no deferred rendering support
  • They diverge on capability: AltspaceVR covers Event hosting, Three.js covers WebGL rendering.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which AltspaceVR and Three.js actually diverge.

Attributes where AltspaceVR and Three.js differ
AttributeAltspaceVRThree.js
PlatformsVr, Pc, QuestWeb, macOS, Windows, Linux, iOS, Android
Founded19752010

Identical on both: starting price (Free), pricing model (free), free tier (Yes), user rating (Not yet rated), category (AR VR).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in AltspaceVR

  • Event hosting
  • World building
  • Avatar system
  • Spatial audio
  • Microsoft accounts
  • Streaming
  • Custom content
  • Vr support

Only in Three.js

  • WebGL rendering
  • Scene graph
  • Materials system
  • Animation system
  • WebXR
  • Post-processing
  • Physics
  • Loaders

What people use each for

The jobs each tool is most often brought in to do.

AltspaceVR

  • VR Gaming
  • AR Marketing
  • Virtual Training
  • 3D Visualization
  • Immersive Experiences

Three.js

  • VR Gaming
  • AR Marketing
  • Virtual Training
  • 3D Visualization
  • Immersive Experiences

Both are used for vr gaming, ar marketing, virtual training, 3d visualization, immersive experiences, on those jobs the choice comes down to price and fit rather than capability.

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

AltspaceVR

  • Shut down permanently on 10 March 2023. Microsoft closed it to concentrate on Microsoft Mesh, and altvr.com now redirects to microsoft.com
  • Microsoft acquired it in 2017 and the closure came alongside wider cuts, so there is no path back
  • Mesh is aimed at business use rather than the consumer social VR AltspaceVR offered

Three.js

  • Forward rendering pipeline only, no deferred rendering support
  • No built-in collision detection or spatial indexing, requiring external physics libraries
  • WebGL dependency means no support for non-WebGL environments

Pricing, plan by plan

AltspaceVR

Free
  • FreeFree
    • Event hosting
    • World creation
    • Social features

Three.js

Free
  • FreeFree
    • Full library
    • WebXR module
    • Examples

Which should you pick?

Choose AltspaceVR if

  • You need event hosting.
  • You want to start without paying.
  • You work on Vr, Pc, Quest.
  • You also want world building.
AltspaceVR review

Choose Three.js if

  • You need webgl rendering.
  • You want to start without paying.
  • You work on Web, macOS, Windows, Linux, iOS, Android.
  • You also want scene graph.
Three.js review

Questions people ask

Is AltspaceVR or Three.js better?
Neither clearly leads. AltspaceVR starts at Free and Three.js at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, AltspaceVR or Three.js?
AltspaceVR starts at Free and Three.js at Free.
Does AltspaceVR or Three.js run on more platforms?
AltspaceVR runs on Vr, Pc, Quest. Three.js runs on Web, macOS, Windows, Linux, iOS, Android.
Can I use AltspaceVR for free?
Both have a free tier, so you can try either at no cost before committing.
What is AltspaceVR best used for?
AltspaceVR is most often used for vr gaming, ar marketing, virtual training, 3d visualization.
What can AltspaceVR do that Three.js cannot?
AltspaceVR covers Event hosting, World building, Avatar system, Spatial audio. Three.js covers WebGL rendering, Scene graph, Materials system, Animation system.

Answered from the vendors’ own pages

Three.js: Is Three.js free to use?

Yes. Three.js is released under the MIT license, an open-source license that permits unlimited commercial and personal use with no licensing fees.

Source
Three.js: Does Three.js include physics simulation?

No. Three.js is a rendering library only. Physics, collision detection, and spatial indexing must be implemented with external libraries like Rapier, Ammo, or JoltPhysics.

Source
Three.js: Can I use Three.js for offline development?

Yes. Local development requires a local web server for CORS compliance. You can use npm with a build tool like Vite, or run a local Python server for development.

Source
Three.js: Does Three.js support WebXR for VR/AR?

Yes. Three.js documentation includes WebXR APIs for building VR and AR experiences in web browsers.

Source
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