The browser kernel has two parts: rendering engine and JS engine.
ndering engine parses HTML documents and displays them on the page
Mainstream rendering engine
FireFox:Gecko IE:Trident 2015, Microsoft launched its new browser, edge, using the edge engine Chrome\ Safari\ Opera:webkit engine rly use of the Presto engine in Opera 13 years Chrome and Opera start using Blink engine
Mainstream JS engine
Older version of IE:Jscript engine After IE9: Chakra engine ge:Chakra engine FireFox:monkey series engine Safari:SquirrelFish series engine Opera:Carakan engine Chrome:V8 engine Node.js: V8 engine