Toon's Dutch keeper has been linked with moves to Chelsea or Tottenham after a brilliant season with the Geordies.
But Krul, 24, said: "It's all just talk. I've signed my five-year contract and I'm committed to Newcastle United.
"The club has not played in Europe for six years and I want to be a part of that.
"This club deserves European football. We've got everything, the stadium, the fans - and an owner in Mike Ashley who's backing us."