The Best CAIDA Data Alternatives in 2026

Ostrava’s open data catalog organizes datasets across topics such as transport, culture, population, public services, and the environment.

Venice’s open data catalog organizes city datasets by themes including culture, mobility, population, economy, and the environment.

UFZ’s data investigation portal organizes sample, field, logger, file-based archive, and geodata catalog resources.

ESS-DIVE supports searching and submitting environmental systems science data, with guidance and news about its research data infrastructure.

CLARIN-IS provides language data, tools and services through Iceland’s CLARIN research infrastructure.

Qualiservice supports finding, using, submitting, and organizing reusable qualitative social science research data.

The University of Barcelona's data repository organizes primary data accompanying publications into institutional, research, and student collections.

protocols.io supports creating, sharing, and discovering research methods and workflows, with tools for organizing protocols and team collaboration.

Brazil’s Superior Electoral Court open data portal organizes election datasets by year, organization, group, and campaign finance topic.

The University of Jaume I repository organizes digital collections for research, publications, educational resources, and academic work.

The GRID3 Data Hub offers tools to visualize, analyze, and download data on population, settlements, boundaries, infrastructure, and services.

B2SHARE is a data repository operated by Forschungszentrum Jülich within the EUDAT infrastructure.

DataSud is shared data infrastructure for the Provence-Alpes-Cote d'Azur region, with open data discovery and regional themes.

CityScale maps living conditions in Ukraine, including housing costs, utilities, ecology, crime, transport and infrastructure.

DataCenterHub preserves earthquake engineering data and digital infrastructure associated with the Network for Earthquake Engineering Simulation.

Hydro-Québec's open data portal provides information about electricity infrastructure, consumption, and energy transition goals.

China’s non-human primate resource bank catalogs animal resources, biosamples, disease models, databases, and related research services.

The Slovak Archive of Social Data provides a data catalog, search tools, access rules, and documentation for archived social research data.

The Mediterranean Germplasm Database catalogs the agro-food plant germplasm collection held by Italy’s National Research Council.

NASA’s Infrared Science Archive curates science products from infrared and submillimeter missions, with catalog and contributed dataset search.

OpenDataPhilly catalogs open datasets from Philadelphia and regional organizations.

The Canadian Coast Guard catalog lets users search 41 navigation-related datasets and resources.

Hradec Králové's open data catalog covers municipal and company records, with datasets grouped into topics such as government, education, and transport.

DataNormandie is a regional open data exchange platform with a catalog and resources for learning how to use its datasets.