Gaia Family Tree is a simple genealogy package that makes it easy to start building your family tree.
In a few moments you can begin adding the key details about yourself and your family: names, birth dates, places and so on. Define their relationship to each other and the tree will begin to form.
If you've collected a lot of data then the tree will become more difficult to browse, but the program offers multiple views (Complete, Linear and Pedigree) to help you zoom in on the data you need.
You might choose to give different sections of your family their own tree, but if you change your mind about this later then Gaia's merge feature will help. It'll even alert you to possible conflicts (where separate individuals have the same name and gender) and assist you in resolving them to make sure that everything runs smoothly.
And if you'd like to share your work with others then the tree may be exported as JPEG, PDF or HTML files, while full GEDCOM support makes it easy to use your tree in any other GEDCOM-friendly genealogy package.
Please note, you'll need to register the program by providing your name and email address to enable all its features.
While it's not exactly overflowing with features, Gaia Family Tree is free and reasonably easy to use