Wrote a little command-line utility for checking passwords against the Pwned Passwords API. I'm a bit more comfortable giving my passwords to a tool when I can see and compile the code myself. Putting my many passwords into a form on a website seems like a bad idea. The code can be found at github.com/apiarian/hibp.
This utility is made possible by the mattevans/pwned-passwords library.
Might hook this all up to the pass password management system later.