I built a small desktop tool called PasteClean to solve a personal annoyance: sharing URLs filled with tracking garbage (utm_source, fbclid, etc.).
It runs in the background and automatically cleans URLs in your clipboard when you copy them. It handles 50+ tracking parameters and can also unshorten links (bit.ly, t.co) to reveal the destination and clean them before pasting.
Tech stack is Electron/React/TypeScript.
The core privacy features are free. I added a "Pro" lifetime license for some advanced features (unshortening, batch mode) to support development.