Plugin for autofade out and in?

I’ve read Dave Dore’s posts on his racks, but I’m wondering if there’s an easier way to program fade ins or outs… like a plugin. I read that SSL has a compressor plug which can do that but it appears to be more for DAW, not really for live work. I’m wondering if there’s just a simple plug with low CPU, and preferably free :laughing:
Thanks!
Tom