LÖVE

What I did for static JSON data was load it with dkjson into a Lua table, then serialize the table with Serpent (or any decent Lua serialization library) and finally write that resulting string to a new file. Basically compiling JSON to Lua tables ahead of time.

szensk, airstruck, I saw your resources for converting json to lua, I'll keep them in mind for using them with a more advanced physics editor, if I buy one, or maybe I'll have to switch to windows to see if I find more free resources. But google's physics editor only creates data about vertices, it doesn't use complicated json code, thanks to that I only had to change it just a little to make it work in löve, but the results are polygons with really small dimensions, unless I have to convert the numerical information of the vertices also, but don't think that's the case.

bobbyjones if you find a solution, like to see it!

I'll post the small polygon where I tested the exporter, I'll look to make something else for the time being as kikito recommended, I'm not learning anything stuck with this idea, lol.