While looking for something else, I have come across YouVersion, another website which offers a Hausa translation of the Bible. So far, this is the best online Hausa Bible site I have found! The Hausa translation is the one published by the Nigerian Bible Society in 1979, which was also used on another website I described here. The difference is the way the books and chapters are presented.
You can have two translations side by side, e.g. Hausa and English:
There is also an audio version of the New Testament, so you could listen to the text while reading it:
There is also a mobile version, so you could have the bible in Hausa on your smartphone. Check it out for yourself and tell me how you like it!