Several years ago, there was a big push to use Blue Button as a means of downloading your medical records. (It seems that HealthIT.gov still talks about it. https://www.healthit.gov/topic/health-it-initiatives/blue-bu...) The notion was that you could securely retrieve your info from all the sources and keep it locally (on a flash drive)

There was also Javascript implementation of the protocol, but that seems to have been archived https://github.com/blue-button/bluebutton.js

Can anyone tell if there's activity there now?