- Jupyter Notebook
- Colab
- Deepnote
- Streamlit.io
- Epiphany "a new blogging experience"
- Klipse Run interactive code in tech blogs
- Matlab / R
- Mathematica
- Playcode Full-featured Live javascript IDE
- Code Sandbox Full-featured Live, colaborative javascript IDE
- jsfiddle Classic javascript snippet site
- jsbin Another javascript snippet site
- Code Pen Yet another javascript snippet site
- Jupyter Lab
- Kaggle
- https://codereef.ai/
- Light Table http://lighttable.com/
- Bret Victor https://www.newline.co/choc/
- Python Tutor (Philip Guo)