The 22-year-old has been with the Toffees since the age of seven, making his way through the academy.
Now he wants to compete for a first team spot, after spending this term at Chesterfield in the National League.
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It's a boyhood dream of mine to be at this club and it's probably every Evertonians' dream to be at this club," he said to club media on renewing his contract.
I've worked hard this season and that's come with a lot of rewards. Last season, it was Chester. This season, it was Chesterfield. I've grown up a lot in the lower leagues and I've definitely come on leaps and bounds as a goalkeeper.
I've enjoyed it a lot. I've grown up as a young player. It's been a positive learning curve and it's been great winning the league and enjoying that."