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Real-time collaboration for Jupyter Notebooks, Linux Terminals, LaTeX, VS Code, R IDE, and more,
all in one place.

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CoCalc

Collaborative Calculation

CoCalc is web-based software that enables collaboration in research, teaching, and scientific publishing. It includes Jupyter Notebooks, Sage Worksheets, a LaTeX Editor and a Linux Terminal to help people work together in real time from different locations. It also has a Computational Whiteboard for expressing and sharing ideas and running code. It is available for free and can be upgraded for internet access, better hosting quality, and other features. It can also be used for teaching courses with flexible course license options. It is also possible to run CoCalc on your own infrastructure.

CoCalc supports sophisticated calculations that arise in teaching, research, and authoring documents. This includes working with the full data science and scientific Python stack, SageMath, Julia, R Statistics, Octave, and much more. It also offers capabilities to author documents in LaTeX, R/knitr and Markdown, storing and organizing files, a web-based Linux Terminal, an X11 graphical desktop, and communication tools like a chatrooms, course management and more. It is the best choice for teaching remote scientific courses.

Quick Start

  1. Visit https://cocalc.com

  2. Sign up for a free account

  3. Create a new project

  4. Choose a computational environment (e.g., Jupyter Notebook, Sage Worksheet, LaTeX Editor)

  5. Start collaborating with others in real-time

Key Features

  • Jupyter Notebooks: Interactive Python, R, and Julia environments

  • Sage Worksheets: Powerful mathematical computations

  • LaTeX Editor: Collaborative document creation with real-time preview

  • Linux Terminal: Full command-line access

  • Computational Whiteboard: Visual collaboration and code execution

  • Course Management: Tools for teaching and managing classes

  • Real-time Collaboration: Work together seamlessly on projects

  • Version Control: Built-in time travel and project history

Website

Install CoCalc on your server or computer

You can obtain a packaged version of CoCalc for your own on-premises infrastructure: CoCalc Cloud. It runs on Kubernetes and inherits the security and scalability of the SaaS platform.

CoCalc Cloud

CoCalc Cloud runs on Kubernetes and inherits the security and scalability of the SaaS platform. To get started:

  1. Visit https://cocalc.com/pricing/onprem for pricing information

  2. Contact [email protected] to discuss deployment options

  3. Prepare your Kubernetes cluster

  4. Follow the deployment guide at https://doc-cloud.cocalc.com/

  5. Configure your instance and start using your self-hosted CoCalc

CoCalc-Docker (for smaller deployments or personal use)

  1. Ensure Docker is installed on your system

  2. Visit the CoCalc-Docker repository: https://github.com/sagemathinc/cocalc-docker

  3. Follow the installation and usage instructions provided in the repository's README

For more detailed information on self-hosting options, please contact [email protected].

History

CoCalc was formerly called SageMathCloud. It started to offer way more than just SageMath and hence outgrew itself. The name was coined in fall 2016 and changed around spring 2017.

Contributors

CoCalc is made possible by the hard work of many contributors. Our team includes mathematicians, computer scientists, and software engineers from around the world. Key contributors include:

  • Greg Bard

  • Rob Beezer

  • Blaec Bejarano

  • Keith Clawson

  • Tim Clemans

  • Andy Huchala

  • John Jeng

  • Jon Lee

  • Simon Luu

  • Andrey Novoseltsev

  • Nicholas Ruhland

  • Harald Schilly

  • Travis Scholl

  • Hal Snyder

  • William Stein

  • Jonathan Thompson

  • Todd Zimmerman

... and others: See https://github.com/sagemathinc/cocalc/graphs/contributors

We welcome new contributions! If you're interested in contributing, please see our Contributing Guidelines (link to be added).

Copyright/License

The copyright of CoCalc is owned by SageMath, Inc., and the source code here is released under the MICROSOFT REFERENCE SOURCE LICENSE (MS-RSL).

See the included file LICENSE.md for more details.

None of the frontend or server dependencies of CoCalc are themselves GPL licensed; they all have non-viral liberal licenses.

To clarify the above in relation to the "reference use":

  • you can download the CoCalc source code at your organization

  • you are allowed to read the source code and to inspect it

  • you are allowed to enhance the interoperability of your product with CoCalc

  • you are not allowed to compile and run the code

If want to host your own CoCalc at your organization, please contact [email protected]. In particular, CoCalc OnPrem is designed for setting up an instance of CoCalc on-premises.

Trademark

"CoCalc" is a registered trademark of SageMath, Inc.

Development

The scripts here might be helpful.  We do most of our development of CoCalc on https://cocalc.com itself. CoCalc requires pnpm version at least 9.

Support and Community

Acknowledgements

Browserstack

We are grateful to BrowserStack for providing infrastructure to test CoCalc.

Google

We thank Google for donating over $150K in cloud credits since 2014 to support this project.