I’ll look at the four most popular open source 360 image viewers and give recommendations as to which is the best tool for your purposes.
A-Frame
A-Frame is the leading open source project for WebVR. What this means is that your project will work not only with web sites, but also on Vive, Rift, Daydream, GearVR, and mobile phones.
Pros
- Backed by Mozilla
- Active community
- Works with VR headsets and VR controllers
Cons
- in beta, pre-release
- video does not work on mobile devices in a browser
- may require the developer build of some browsers
Google VR View for the Web
Google VR View for the Web is part of a set of technologies that Google makes available for mobile and web VR. It’s a solid choice for developers that either want to build browser-based sites or are committed to Cardboard and Daydream.
Pros
- Backed by Google
- Works on Daydream
- Supports hotspots
Cons
- optimized for the web. Other SDKs available for native mobile app development
- limited viewing options compared to Photo Sphere Viewer
- media may need to be placed on same web server that the code is saved on, especially with Mac OS X and Safari
React VR
React VR is a VR framework for React. It’s easy to use and requires Node.js.
Pros
- backed by Facebook
- WebVR API compliant, works with Carmel Developer Preview browser from Oculus 32
- Optimized for Facebook apps
Cons
- community not as active as A-Frame
- same problems with using cutting-edge technology that A-Frame encounters. May not work as expected on all headsets
- currently on 0.2.0 (not really ready for prime-time)
Photo Sphere Viewer
Photo Sphere Viewer is an open source project made by Jeremy Heleine. It focuses on viewing the 360 image in a web page.
Pros
- most features to control the image in a web page
- stable JavaScript library that been around for a while
- allows download of 360 image and zoom from menu bar (you can disable the menu bar)
Cons
- made by individual, not large company (which might be relevant to your clients)
- optimized for the web, not headsets
- no clear path to augmented reality and virtual reality (compared to the technology from big name companies) Source