There is an online service for running SageMath computations online. It has been redesigned from the ground up to be much more reliable, sustain higher load and offer a lot more features. It can be considered as the successor of the no longer existing "SageNB" online service.


Chrome Extension

Install the Chrome Extension for CoCalc.

Existing Files

To transfer existing *.sws files to the new CoCalc service, download the notebook files from your current SageNB setup and upload them into a new project on CoCalc. When you open them, they'll be converted to SageWorksheets.