UNFORTUNATELY there is no such plugin on the GitHub anymore (link is dead). So: maybe someone has it and can share it if it still works? Maybe there is another method to randomize translation / rotation keyframes?
Noise modifier can be a partial solution, but not ideal, I am afraid. I need something simplier and faster, that works on sampled keyframes values, does not interpolate the curve.
The nice thing about version control systems is that they have a history. Although the script you’re looking for was deleted a while back, it’s still in the history of the repository. You just have search back for it. Here’s a link to the script at the revision before it got deleted.
@fweeb, thank you! I will try it ASAP @stilltrying - I use Animation Nodes and know the wiggle - indeed it can help a bit from my initial tests, it is a kind of alternative, thanks!