I just published a first version of my new editor project: Wordgard!
@marijn in case you aren't already aware, wordgard.net/try seems to be broken (at least in Safari and Firefox): “The Same Origin Policy disallows reading the remote resource at https://wordgard.net/try/sandbox.js”
@tisba Ah right, forgot to configure the access-control headers. Thanks for letting me know! Should work now.
@marijn you're very welcome! the project looks very interesting, thanks a lot for sharing!