1.WordPress / gutenbergThe Block Editor project for WordPress and beyond. Plugin is available from the official repository.wordpressgutenbergwordpress-pluginTypeScriptOther license12K total5K forks+5 starsfrom 11,775 · score 1.79
2.Automattic / wp-calypsoThe JavaScript and API powered WordPress.comwordpressjavascriptreactes2015es6es6-javascript+2 moreTypeScriptGPL-2.013K total2K forks+1 starsfrom 12,648 · score 0.69