I was somewhere where I had unlimited social media, so here's something that uses Heroku to send me anything via DM on Twitter
Run server.rb on Heroku, DM yourself "!smcurl your-url-here", wait a bit and use download.rb on your computer and it will save the fetched result to output.
In practice, not very practical because of tweet DM rate limits but eh I tried
This is free and unencumbered software released into the public domain.