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Dataset Search Engines

Find free datasets from millions of sources across the web

Dataset Search Engines

Google Dataset Search

Google's dedicated search engine for datasets. Search millions of datasets from thousands of repositories across the web.

Best Features:
  • Searches academic repositories, government portals, and data publishers
  • Shows download format and update frequency
  • Filters by usage rights and topics
  • Direct links to original sources
100% Free Millions of Datasets No Registration

Kaggle Datasets

Community-driven data science platform with 50,000+ public datasets. Many datasets include starter code and notebooks.

Unique Features:
  • Community discussions and insights
  • Quality ratings and popularity metrics
  • Associated competitions and notebooks
  • Direct download or use in cloud notebooks
Free Access 50,000+ Datasets Registration for Download

DataHub.io

Curated collections of high-quality datasets. Focus on clean, packaged data ready for analysis.

Collections Include:
  • Core datasets (GDP, population, currencies)
  • Economic indicators
  • Reference data (country codes, languages)
  • Machine learning datasets
Free Download Curated Quality

Papers with Code Datasets

Machine learning datasets linked to academic papers and benchmarks. Great for research and model comparison.

Free Access ML/AI Focus Academic Quality

Curated Dataset Directories

Awesome Public Datasets

Highly curated list of quality datasets organized by topic. Maintained by the community on GitHub.

Categories Include:
  • Agriculture
  • Biology
  • Climate/Weather
  • Economics
  • Education
  • Finance
  • Government
  • Healthcare
All Free Quality Curated Direct Links

UCI Machine Learning Repository

Classic collection of datasets for machine learning research. Used in thousands of academic papers.

Features:
  • 600+ datasets
  • Detailed documentation
  • Citation information
  • Benchmark results
100% Free Academic Standard

Search Tips

How to Find the Best Datasets:

  1. Start with Google Dataset Search - It indexes most other sources
  2. Check the license - Look for CC0, public domain, or open licenses
  3. Verify data quality - Check when it was last updated
  4. Read the documentation - Good datasets have clear descriptions
  5. Look for direct downloads - Avoid sites requiring extensive registration
Pro Tip: Use search operators like filetype:csv or site:data.gov to find specific types of data files.