OpenBlock is a web application and RESTful service that allows users to browse and search their local area for "hyper-local news

"EveryBlock was developed by OpenPlans, a non-profit organization working with public agencies to develop software initiatives and technology strategies that make cities work better. "

OpenBlock began life as the open-source code released by Everyblock.com in June 2009. Originally created by Adrian Holovaty and the Everyblock team, it was further developed as an open-source (GPL) project by OpenPlans from 2010-2011.

Funding for the initial creation of Everyblock and OpenPlans' work on the development of OpenBlock was provided by the Knight Foundation ().