There are four states that publish FDDs online.
California
https://docqnet.dfpi.ca.gov/search/
California’s search engine is slow to update, but every document associated with a franchise registration (FDDs, blacklines, applications, permits) is available on the site, once they get around to updating it. Sometimes you have to know the exact name of the franchisor to be able to find the filing.
Indiana
https://securities.sos.in.gov/public-portfolio-search/
Clean and easy to use, but they just started the site in 2019, so only 2019 current registrations are available.
Minnesota
https://www.cards.commerce.state.mn.us/
Be sure to add a year, or it will pull up every registration ever made. Able to search by franchisor or franchise offered.
Wisconsin
https://apps.dfi.wi.gov/apps/FranchiseSearch/MainSearch.aspx
Simple to use if the franchisor is registered there. Able to search by name of Franchisor or name of franchise.