Kaggle

Kaggle is the world's largest data science community, providing competitive machine learning challenges, thousands of open datasets, and a free, in-browser coding environment (Kaggle Notebooks).

Kaggle (owned by Google) is the premier platform for applied machine learning, hosting competitions where companies and researchers offer prize money for the best predictive models to solve real-world problems. The platform offers a massive repository of resources: over 200,000 public datasets, a hub of 37,900 pre-trained models, and Kaggle Notebooks (a free, cloud-based environment) for running Python and R code. This ecosystem allows over 20 million members to collaborate, level up their skills through practical application, and build a credible data science portfolio.

https://www.kaggle.com/