Metafield editor with WYSIWYG option

[Hamadzafar]

Hi Team,

For my store, I'm getting data from metafields.json. Now, I'm using a chrome extension named Poshify Utilities. In this extension, I'm facing some difficulties to edit the metafield data. 

I'm looking for the metafield editor app with the WYSIWYG editor. Which app fulfills my requirement? 

Can you help me to find it?