The difference is haha is actually a laughter whilst hehe is a giggle or smirkish kind of laugh

Haaaaaaaa

hehe
Xd

Kinda evil version of haha

Ha haaa haha 👀
he he he 😬

😂 The explanation is right there lolz.

2 "he's" = 2 guys 😕

Depends on what it's used after, it could be either wicked or naughty.
Maybe even a shy laugh.

To me it`s a subtle laugh. hehe ..

Like haha but hehe.

Who who?

Hehe

a soft chuckle

Chuckle.

it's the laugh when you have dirty thoughts

That they're dtf. Jks 😛

when someone replies to an email or text with the word "hehe" what they are really trying to say is that life is a social construct well known in the physical universe as unfair nevertheless difficult to decide which is more provoking: good people suffering or evil people prospering. or, they're just being a douche