Sites like Own3d or Nerd or Die offer ZIP packs containing animated alerts, overlays, and transitions.
Always verify if the ZIP download is for personal or commercial use. Some free packs require attribution. Download Animated Items zip
If using animations on a website, prefer Lottie or WebP formats to keep page load times fast. Sites like Own3d or Nerd or Die offer
LottieFiles is the industry standard for scalable, code-based animations. You can often download curated collections as a ZIP. Download Animated Items zip
For hobbyists, Lordicon and IconScout offer free tiers where you can download packs of animated UI icons. How to Download and Extract Your Items