The end-user tools work against a dummy test-merchant. The demosite is a configurable test-merchant in itself.

End-user tools   
Test your browser for BankIDbrowser-testnabrowser-test
Test auth with BankIDauthnaauth
Test single-doc sign with BankIDsign-pdfnasign-pdf
Test multi-doc sign with BankIDsign-multinasign-multi
Test auth with BankID on Mobiletbcnatbc
Test sign with BankID on Mobiletbcnatbc
Demosite BankID 2.1demositenademosite
Demosite BankID 2.0demosite-2.0nademosite-2.0

A convenience all-inclusive test tool is available for services that are offered via the Open ID Connect Provider from BankID