jQuery Isotope RTL

if you use Isotope V2 you should use:

isOriginLeft: false

if you use Isotope V3 you should use:

originLeft: false

originLeft was previously isOriginLeft in Isotope v2. isOriginLeft will still work in Isotope v3. https://isotope.metafizzy.co/options.html#originleft

Controls the horizontal flow of the layout. By default, item elements start positioning at the left, with originLeft: true. Set originLeft: false for right-to-left layouts.

originLeft: false

isotope options

just use this option isOriginLeft: false

and css

.isotope .isotope-item 
{
  -webkit-transition-property: right, top, -webkit-transform, opacity;
     -moz-transition-property: right, top, -moz-transform, opacity;
      -ms-transition-property: right, top, -ms-transform, opacity;
       -o-transition-property: right, top, -o-transform, opacity;
          transition-property: right, top, transform, opacity;
}