In a Rails application, unnecessary images/CSS/JS will affect application load time and also stretch the deployments.

In one of our projects, we had over 1500+ images. This was making our life difficult; especially “asset precompile”. It was very difficult to find images which were not in use.

Here is a small ruby script to find all unused images and get rid of unused images:

Run above script on rails console to remove all unused files.

Hope this helps!

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