The towering 20-year-old, who has been on the first-team bench once this season against West Brom in December, admits he’s delighted to be tied down longer term on Tyneside but thinks his development, for now, is better served playing senior football elsewhere.
"It's really exciting to be able to sign a new deal, and really pleasing the club have decided to offer me a new deal and help me continue my journey in football,” 6ft 7ins keeper Langley told NUFC TV.
"I need to try to play as much football as I can – here, ideally, but it's hard to try to break in when you've got the likes of Karl Darlow and Martin Dúbravka. So maybe a loan somewhere, try to get as many first team games as possible, and then eventually come back and progress in the Newcastle ranks – and end up being the number one, hopefully."
Langley has trained with the first-team pool for much of the season alongside Martin Dubravka, Karl Darlow and Mark Gillespie.
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Bedlington lad Langley, a boyhood United fan, only penned his first professional Magpies deal in the summer of 2019.
According to the club website Langley's grandfather, Dave Crane, another goalkeeper, was also on the books of the Magpies.
Langley has impressed regular watchers of the club’s under-23 side in recent years, with the keeper modelling his game on Germany and Bayern Munich’s Manuel Neuer.