https://tempfile.cloud
It took about 3 hours to get this up and running, my design skills are quite limited, so that was the most time-consuming part.
It is built on Aurelia, uses Node.js as the backend and Amazon S3 for the file storage.
While this is nothing new, more sites like these are always welcome. If you plan on keeping this alive long term, please consider making an API so I can use it from the command line. Also, these services tend to get misused a lot, so you might want to log everything. Maybe encourage people to encrypt before uploading, too.
Take a look at a few existing services as well, to figure out what else you can add.
[1] https://file.io [2] https://transfer.sh
Just got done writing a script for the latter - https://gist.github.com/Prajjwal/63f5df1176ea05ee3679c04e0fa....
It was more of a quickly thrown together app. I'll keep it up though, I've used it a couple of times myself now. I find most of the other sites like these either make you sign up, offer smaller upload limits of 300 to 500mb or they spam you with horrible popup windows and pornographic banner ads.
API is a good idea. At the moment the uploads are direct to S3 from the browser using presigned URL's, but wouldn't be too hard to add one in though.
I am absolutely logging everything that is uploaded. One of the first things I did was implement some solid logging.