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Sorry. I read the manga and watch the anime and Racheal (Ran Mouri) still doesn't know that Jimmy (Shinichi Kudo) is Conan. I recommend that you transition into the subtitled version, way more episodes available.

Well, obviously that episode isnt come up yet, but for a few times Conan were going to confess to Ran/Rachel that he is Shinichi/Jimmy, if I'm not wrong, there is a scene were in train cases where there is a bomb but Jimmy cant find the suspect who brought the bag contain a bomb... So, he was almost admitted to Ran/Rachel... And there is cases were Ran really suspect Conan is Jimmy/Shinichi, with some conclusion that Jimmy shrink because of Agasa's drugs... Its so funny, but then he was saved by Ai Haibara...

Try to read it in here for a complete chapter... http://manga.animea.net/detective-conan.html

Have a great day~~

I'm not sure but there is a episode were she finds out the truth but gets tricked into believing she was wrong it was episodes 99-102.

There is only dub for like 80 or so of the 500 episodes. After thos 80, you are stuck with Japanese dub.

i stopped reading the manga and watching the episodes cause they dragged on to long, but im pretty sure she never finds out.

Gave up on that anime. Way too many episodes and they are all the same.

as far as i have seen he didn't confess neither she found out.