Ybase is the genetic/genealogical database set up and maintained by DNA Heritage which accepts haplotypes and genealogical information. It currently can accept up to 49 markers, making it the broadest database available. It is also free and open to the public and you don't have to contribute a record to search it - although we do recommend it.

It was set up as an answer to the private databases that some of the commercial testing companies hold, requiring that you be a customer to search them. Anyone can add to Ybase and anyone can search it.

Ybase.org screenshot

It has several search functions based on surname searches and haplotype searches.

Surname searches allow surnames, variant spellings and associated names to be found.

Haplotype searches allow comparison of your Y-chromosome haplotype with others based on exact matches, near misses, or number of matching markers.

The database has been open since October 2002 and currently has approx. 2148 haplotypes, representing many of the surname projects that have been carried out around the world to date, all of which can be contacted via Ybase.