Boop (macOS, mac store..
https://github.com/IvanMathy/Boop)
Allows to quickly pretty format pieces from clipboard.. useful for Eg JSON, xml etc you copy off some response to a webservices you developing etc. highly customizable too.
Swift Bar(macOS, home brew..
https://github.com/swiftbar/SwiftBar)
Let’s you define or add all manner of items to tour status/menu bar at the top of the screen.
— Frameworks or libraries
Apache POI (Java,
https://poi.apache.org/)
Nothing new.. but every so often I keep coming back to use this. Essentially allows you to programmatically create or manipulate all MS Office documents. If you get suckered into generating reports, invoices etc. you name it.. this is useful to use as it’s a mature library.. wish Python had something similar.
I saw mention of Django and Flask.. but what about
FastAPI (python,
https://fastapi.tiangolo.com/). I like the auto documenting /api and openAPI support.