Ask HN: What is your favourite database viewer/Query tool?

I have been a lot working with SQLdeveloper for oracle DBs and datastax devcenter for cassandra. I was wondering why these companies have a desktop version but not a web version. With web, we can easily open multiple windows and share results across the team easily. Plus your results wont get overwritten with a new query everytime.

So, what is your favourite database viewer/query tool?