Are online media tools just... accepted as painful or am I missing something?

Every time I need to quickly trim a video or convert an audio file I end up uploading to some sketchy website, waiting, downloading, then repeating the whole thing for the next file.

My laptop could do all of this locally in seconds but I can't find a simple tool that just handles multiple things without being a bloated mess. Do you guys just deal with this? What does your workflow actually look like?