The worksheets support Markdown and HTML for decoration, and R, Octave, Cython, Julia and others for programming in addition to Sage.

CoCalc supports Jupyter notebooks, which are enhanced with real-time synchronization for collaboration and a history recording function.

[4] All the data on projects is automatically backed up about every five minutes with bup, and snapshots of previous versions are accessible.

The creator and lead developer of CoCalc is William Stein, a former professor of mathematics at the University of Washington who also created the Sage software system.

Initial development was funded by the University of Washington and grants from the National Science Foundation and Google.