LDtk
Modern, lightweight and efficient 2D level editor
...To be exact, LDtk is “pay-what-you-want, including free“, even for commercial projects. Everything you create using LDtk is yours. By the way, LDtk is also open-source, so you could even grab the code and adapt it to your needs. Every UI details were carefully designed to make the process of creating levels as smooth as possible. For every new tool out there, there is this moment when you need to write the importer for your fav engine. I’ve been there too: so LDtk offers a Super Simple Export option. ...