Before downloading a template, one must understand that Aegisub does not use a proprietary file format for effects. Instead, it relies on the Advanced SubStation Alpha (.ass) format, a text-based script that allows for highly precise positioning and styling.

A "Karaoke Template" in Aegisub is essentially a set of scripted logic lines (written in Lua or Aegisub’s internal automation syntax) that govern how text behaves. When you download a template, you are downloading a blueprint that tells Aegisub:

There are generally two types of templates users will encounter:

Since external links change, here is a functional, free template code you can copy into a blank Aegisub file right now to test. This creates a "Sweep + Bounce" effect.

The Eastern fansubbing community is years ahead of the West.

Community-contributed effects with: