Hi, there new release from our team. We just started, but trying to make good things.
Our 2d terrain creator making editable meshes from the needed textures. Automatic collider + complex algorithms for pretty appearance allow you to make terrains fast and easy.
We used alot of hacks for unity to make editing mode okay working with multislection. And in general its working good with all types of cameras.
Also its working with bastching and placing textures to one map.
Tool was for inner usage in our projects, but we decided to release, because when something helping me - can help someone else.
Sorry for my bad English, i am not a native speaker, but anyway have a good day to all. And some more pictures below with example which was created in 15-20 minutes with a tool:
Link to the asset
Link to the asset if someone missed and thanks, have a good day!