It’s is a contraction of “it is” or “it has.” The apostrophe indicates that part of a word has been removed.
Its with no apostrophe is the possessive word, like “his” and “her,” for nouns without gender.
Its’ is not an accepted word.
Its – Possessive
- The cat hissed when the dog stole its catnip.
- The laptop was too large for its case.
It’s – Contraction of “it is” and “it has.”
- It’s gone awry
- Mom doesn’t think it’s a good idea.