Ancestry has Dorset, England, Wills and Probates, 1565-1858

Ancestry lists this 31,271 record database as updated - I must have missed it previously.

Sourced from the Dorset History Centre in Dorchester most of the wills, including administrations and inventories, in this collection are from the Dorset Archdeaconry. Wills disposing of land and property in more than one archdeaconry are from the Bristol Consistory for records in this collection. Wills may also have been proved in the Court of the Peculiar of Canford Magna and Poole, which had jurisdiction over the parishes of Great Canford and Poole.

Index entries are linked to an image of the original

If you're confused about probate records the Dorset History Centre has an online Guide to Sources (pdf).