Dataset library
Open-dataset guides
Each entry covers institution, coverage, time span, scale, license and how to access — drafted from the source page and human-reviewed before publishing.
The English dataset library is being built out — new entries are added continuously. Meanwhile, the Chinese library has the full collection.
Need a dataset retrieved and prepared?
Tell us your hard requirements. We assess availability first, then retrieve for real — and say so plainly if it cannot be obtained.