Demo
These are best viewed in VR, click "Enter VR" if your device supports VR.
Use it
To add this viewer to your page or app:
<script type="module" src="https://stereo-img.steren.fr/stereo-img.js"></script>
<stereo-img src="picture.vr.jpg"></stereo-img>
For info
Just for comparison, here is the same picture in a regular <img>
element: