connect to local sql server using different client

 Hi all, 

I use local sql server (2017 RTM 14.0.1000.169 X64 Express if matters). Works fine with SSMS, just tried to use different client (Sqlectron if matters) and stuck on credentials step. 

I connect in SSMS using just server name: DESKTOP-ABCDEF1\SQLEXPRESS and Windows Authentication where DESKTOP-ABCDEF1\user1 is my username, no password needed. 

Now how do I do the same in different client? By the way, I used this client with SQL Server before, but it was SQL Server authentication, not windows authentication.

TBH, It returns error that is not related to authentication, it says Failed to connect to [server name]. I tried 127.0.0.1, DESKTOP-ABCDEF1, DESKTOP-ABCDEF1\SQLEXPRESS and getting the same error anyway. Ports tried: 1433 and 1434.

Is it client-specific question that should be asked on specific forum or can I get some help here? 

Please advise.