As citizens increasingly become contributors of data, opinions, and ideas, digital crowdsourcing tools are enabling the reinstatement of citizens as key stakeholders in urban development. In France and across the world, “urban crowdsourcing” is now the subject of many experiments, led by public authorities, private actors and citizen groups.

This short Issue Brief from IDDRI’s Tatiana de Feraudy and Mathieu Saujot, provides an insight into the concept of urban crowdsourcing and its promises to transform the city, while identifying what conditions should be met for these tools to contribute to sustainable urban development.