Nesstar is a web-based data delivery software system that allows users to search for locate, browse, analyse and download data. It differs from Beyond 20/20 in that it is specifically designed to deliver survey data. Data delivered using Nesstar include many large-scale survey datasets, such as the UK Labour Force Survey and the General Household Survey, and international survey datasets such as the European Social Survey.

ESDS produces an introductory guide to using Nesstar