If you don't want to make this yourself, you can find the easy-to-use video overlays here.

In this video, we'll walk you through creating heart transitions using the Trapcode Particular plugin in Adobe After Effects.

Start by finding a heart image with a transparent background from the internet. This will ensure that your heart transition looks clean and professional.

Create a new composition in After Effects with Full HD resolution (1920 x 1080) and set the frame rate to 60 fps for smooth transitions. Import your heart image into this composition and adjust its size as needed.

Apply the Trapcode Particular plugin to your composition. This particle system allows you to generate and customize particles. Adjust the emitter type from 'Point' to 'Box' and increase the emitter size to give your particles more depth and visual interest.

For a detailed, step-by-step guide on how to achieve this heart transition effect, check out the full tutorial in the video.