happens to the best of us.. I've released some useful tools that have literally gotten maybe 2 upvotes and didn't even make it to Show HN. Sucks, but.. no time to dwell.. just gotta keep working on the product and promoting it in other areas or start something else.
Yea Safari and Chrome responsive design modes are great. This just allows you to have many device sizes open at once without needing to open multiple browser windows.
It’s great for people doing QA on your website as well, saves a bunch of time not having to switch back and forth between browser sizes.