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OpenDirectory helps research websites, public data, search results, or online communities.
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opendirsearch.abifog.com
Open directory search engine for finding public folders, file listings, and downloadable content.
openei.org
Research data portal for exploring engineering records, including recorded data.
openfront.io
OpenFront is a gaming resource for guides, communities, tools, game discovery, or reference links.
ni-lgln-opengeodata.hub.arcgis.com
Open geodata portal of Lower Saxony in Germany.
openheritage3d.org
Research data portal for exploring ancient cultures records, including datasets.
openicpsr.org
Find and access economic policy, applied economics research data, with indexed dataset.
data.indy.gov
Browse public datasets, metadata and downloadable records in an open catalog.
openlandmap.org
Searchable repository for finding geography datasets and datasets.
openmw.org
OpenMW is a gaming resource for guides, communities, tools, game discovery, or reference links.
openneuro.org
Find and access basic in biology and medicine research data, with indexed image.
register.openownership.org
OpenOwnership helps research websites, public data, search results, or online communities.
openra.net
OpenRA is a gaming resource for guides, communities, tools, game discovery, or reference links.
openrct2.io
OpenRCT2 is a gaming resource for guides, communities, tools, game discovery, or reference links.
openrouter.ai
OpenRouter catalogs AI services and resources for browsing by feature or use case.
opensource.builders
Opensource Builders helps discover software alternatives, open source projects, or replacement apps.
opensourcealternative.to
opensourcealternative.to helps discover software alternatives, open source projects, or replacement apps.
opensupplyhub.org
Open data and supply chain mapping platform publishing supply chain data transparently and freely (with login).
opentopography.org
Browse research datasets and geospatial data related to geography.
opentrials.net
Find data collections, study records and related research documentation.
openttd.org
OpenTTD is a gaming resource for guides, communities, tools, game discovery, or reference links.
openworm.org
Searchable repository for finding basic in biology and medicine datasets and moving image.
mors-games.itch.io
Operius is a gaming resource for guides, communities, tools, game discovery, or reference links.
catalog.opgc.uca.fr
Research data portal for exploring atmospheric records, including datasets.