This is a list of some of the best free software for your ancestry needs.
Firstly it’s worth looking at Gramps. It’s free software developed by an online community of hobbyists and professional genealogists.
Gramps (Mac, PC and Linux)
Other free family tree software is:
Family Tree Legends (Windows Only)
Family Tree Builder (Windows Only)
ScionPC (Windows Only)
Roots Magic Essentials (Windows Only)