„JuxtaposeJS helps storytellers compare two pieces of similar media, including photos, and gifs. It’s ideal for highlighting then/now stories that explain slow changes over time (grown of a city skyline, regrowth of a forest, etc.) or before/after stories that show the impact of single dramatic events (natural disasters, protests, wars, etc.).
It is free, easy to use, and works on all devices. All you need to get started are links to the images you’d like to compare.“