AWS Data Exchange
Marketplace for third-party datasets on AWS
Data.gov
US government open data portal
Databricks Marketplace
Open marketplace built on Delta Sharing
Hugging Face Datasets
Datasets hub for machine learning
Kaggle Datasets
Public datasets shared by the community
Nasdaq Data Link
Financial and alternative datasets, formerly Quandl
RapidAPI
Hub to find and test APIs
Registry of Open Data on AWS
Public datasets stored on AWS
Snowflake Marketplace
Third-party data and apps inside Snowflake