What is meant by React Retools?

A pri­ma­ry com­po­nent of sev­er­al Pre­ferred and most opt­ed React Native toll com­po­nent. React Retools is facil­i­tat­ed by Face­book pri­mar­i­ly as an extend­ed part for Chrome and Fire­fox browsers, but with Retools, devel­op­ers can now review, study React and All React Native col­lec­tive com­po­nents and their hier­ar­chies. One can even use it as a pro­fil­er apart from oth­er parts and features.