[lowmemcpu]

That editor (in the gif) is really cool. Does anyone know if it's homebuilt, or if they used a library for that?

[agustif]

I think it's the graphqleditor.com which makes sense being their blogpost.

At the end of the post you can click the button and try (as in a trial) the graphqleditor

It's nice, but if you want a free one check altair or just use postman?

[oczek]

It's homebuild but some of its parts are opensourced, check out the GitHub: https://github.com/graphql-editor