Google Colab

Colab runs Jupyter notebooks in the browser on Google's servers, with free access to GPUs and TPUs within limits. It is a go-to place for tutorials, class assignments and quick experiments.

Built-in Gemini assistance can write and debug code, and an agent mode can plan analyses. Notebooks save to Drive and are easy to share.

Free sessions time out and resources are not guaranteed, so serious jobs need a paid plan.