Yes you can it is just they dont seek converts. Othordox Jews will denie you atleast 3 times to see if you are actually commited it is halacha law that they must deny you 3 times. Eventaully they will accept you than you have to study with the rabbi for a year than you will be circumsized if you already are they will take a drop of blood of blood from your private than you will be dipped in a milkvah
But i am a Karaite and we follow the plain meaning of the Torah and not theses at all these laws found in the Talmud
Question: What do I need to do in order to convert to Karaite Judaism?
Answer: In order to convert to Karaite Judaism you must first accept the three fundamental principles of Karaism as expressed in the Karaite Confession:
I believe in YHWH of Hosts as the only God, and renounce all others.
I believe in the Tanakh, the Hebrew Scripture, as the word of YHWH and the only religious authority and renounce all other writings, creeds, and doctrines as the words of men.
I undertake to study and keep the Tanach, striving to interpret it according to its "plain meaning".
You must also accept the principles expressed in the ancient Karaite Vow:
"By the covenant of Mt. Sinai and the statutes of Mt. Horev I will keep the holy appointed times of YHWH according to the New Moon and the finding of the Aviv in the Holy Land of Israel, when possible."
If the believer is a male he must be circumcised. Circumcision can be performed by any qualified health-care professional. It does not need to be performed by a religious leader or ‘Rabbi’.
Before converting, the believer must begin to live by the Torah so that by the time he converts he will have internalized day-to-day commandments such as daily Torah study, prayer, Shabbat, Kashrut, and family purity.
If you want to be a Karaite Jew go to
http://www.karaite-korner.org/ http://www.kjuonline.com/ http://www.karaites.org/
If you want to be a Rabbinical Jew Chabad.org