If you haven't heard of Sefaria.org, then you are missing out. This is one of the best free resources on the net for Jewish texts. They have everything from the Biblical text, the Mishnah, various midrashim, halachic and liturgical texts, mystical texts, and MUCH MORE. A lot of the texts are only available in Hebrew, but many are being made available in English as well. Their newest addition to their family of freely available texts is the entire text of the Talmud (both the Bavli and the Yerushalmi) in both Hebrew and in English!