For and from citymakers around the globe

use our platform to explore sustainable city making.

That's a wrap on 2025!

700+ citymakers, 440+ cities, one shared mission.

Closing the Digital Divide

An interview with citizen participation expert Adrià Duarte (UCLG), exploring how cities can use digital tools to strengthen local democracy, and put human rights at the centre of digital transformation.

e-sabha app

Connecting Communities with Local Authorities and Government Agencies on a Single Platform.

C6 Finland - Finnish Alliance model

A bold new experiment in multilevel collaboration

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use (urban sustainability exchange) is a knowledge exchange platform dedicated to sustainable city making. use connects citymakers and encourages the exchange of ideas and experiences to effect positive sustainable change.

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441 cities online.

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Case studies

564 case studies online. See all
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Curitiba’s Urban Agriculture Programme
Curitiba, Brazil

Curitiba’s Urban Agriculture Programme

A green revolution to address food security and climate change
Recycling Initiative of Karak municipality, Jordan
Karak, Jordan

Recycling Initiative of Karak municipality, Jordan

A small project in Karak is making a significant shift towards more sustainable waste management in Jordan.
Quinto Centenario Cycle Avenue
Bogotá, Colombia

Quinto Centenario Cycle Avenue

The C40 Cities Finance Facility is supporting a cycling transformation in the city of Bogotá by providing technical assistance to the city administration to help fund new high-quality cycling infrastructure.
ToNite
Metropolitan City of Turin, Italy

ToNite

An integrated and community-based approach to address urban security
Urban Green Heart Programme
Chengdu, China

Urban Green Heart Programme

Ecology Priority and Green Development
De Energiecentrale
Ghent, Belgium

De Energiecentrale

Ghent’s one stop shop for energy renovations

Community

710 citymakers online. See all
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Mikel Berra Sandin
Barcelona (área metropolitana), Spain

Mikel Berra Sandin

Individual | Project Officer, Digital Metropolis
Noelia Wayar
Cordoba, Argentina

Noelia Wayar

Individual | Directora de CiGlo - Ciudades Globales Centro de Estudios / Funcionaria Universidad Nacional de Córdoba
Rokhaya Fall
Bamako, Mali

Rokhaya Fall

Individual | Responsible for the Departement of international relationship
Berlin, Germany

Saskia Lössl

Individual | Sustainability Manager
Localizing the SDGs
Brussels Capital Region, Belgium

Localizing the SDGs

Institution | Knowledge and sharing platform
Berlin, Germany

Soenke Jacobs

Individual