Migrating to Tiled or other tilemap editor

Questions
#1

I’ve seen some threads about exporting from Tiled, but nothing about importing into it.

We’re starting to outgrow the builtin tilemap editor and would like to switch to an external editor but want to avoid having to recreate everything - it isn’t just the effort, but the possibility of errors. Has anyone done this before? I can only imagine (somehow) transforming the Defold json format into something that Tiled can read.

Our game has 9 tilemaps, each with 10 layers. They’re arranged in a 3x3 pattern, and all together are about 60x40 tiles.

#2

TMX Map Format — Tiled 1.7.2 documentation

Does seem like you’ll want to make a Defold → Tiled convertor. If you go for doing that please make it open source and publish on somewhere like GitHub so others can contribute / use it if/when they want to do the same thing.