Kayero is an interactive JavaScript notebooks editor.

- It's just Markdown - a Kayero notebook is just a Markdown document with a script attached.
- Every notebook is fully editable and can be saved as a Markdown file.
- JavaScript code blocks can be executed. They're treated as functions, with their return value visualised. Kayero can visualise arrays and objects, similar to the Chrome object inspector.
- Code blocks can be set to run automatically when the notebook loads. They can also be set to hidden, so that only the result is visible.
- Data sources can be defined. These will be automatically fetched when the notebook is loaded, and made available for use inside code blocks. A datasource can be either:
- a url returning a json object
- a mongodb URL (the db will be available as a monk instance)
- Includes D3, a graphing library to transform your data into a graph.