There are multiple practice exam sites online. For example this one has a couple good practice tests: https://japanesequizzes.com/portfolio/jlpt-n5-grammar-practice-test/
Also, there should be many books online in which have N5 practice tests.
However, even better and more convenient, Nihongo Master has its own JLPT N5 Practice test at this link: https://www.nihongomaster.com/jlpt-n5-practice-test
Now, that's super convenient. I never knew that Nihongo Master had JLPT practice tests at all, despite using this app for four years. ありがとう、エマちゃん 。おひさしぶりです。お元気ですか。:)デリウス
Commented 3 years ago