.NET Interactive and Polyglot Notebooks

🚨Polyglot Notebooks will be deprecated March 27th, 2026

🚨.NET Interactive will be deprecated April 24th, 2026

This repository will be archived on April 24th, 2026

For more information on Polyglot Notebooks and .NET Interactive, please read the announcement

The following paths are no longer supported.

• src/polyglot-notebooks
• src/polyglot-notebooks-browser
• src/polyglot-notebooks-ui-components
• src/polyglot-notebooks-vscode
• src/polyglot-notebooks-vscode-common
• src/polyglot-notebooks-vscode-insiders

What is .NET Interactive?

.NET Interactive is an engine and API for running and editing code interactively, including:

• Running code and getting its results.
• Evaluating code to provide language services such as completions and diagnostics.
• Sharing data and variables between multiple languages and across remote machines.

While typically associated with notebook technologies such as Jupyter, .NET Interactive has other uses as well, such as building REPLs and embedded script engines.

The following languages are supported by .NET Interactive:

Language	Variable sharing
C#	✅
F#	✅
PowerShell	✅
JavaScript	✅
SQL	✅
KQL (Kusto Query Language)	✅
Python	✅
R	✅
HTML	⛔
HTTP	✅
Mermaid	⛔

REPLs

.NET Interactive can be used as the execution engine for REPLs as well. The experimental .NET REPL is one example of a command line REPL built on .NET Interactive. In addition, .NET REPL can be used for automated command line execution of notebooks.

Small factor devices

.NET Interactive supports running on devices like Raspberry Pi and pi-top [4]. You can find instructions here.

FAQ

For more information, please refer to our FAQ.

Acknowledgements

The multi-language experience of .NET Interactive is truly a collaborative effort among different teams at Microsoft and in the community. We'd like to thank the following teams for contributing their time and expertise to helping bring support for other languages:

• PowerShell Team: PowerShell support
• Azure Data Team: SQL and KQL support
• Azure Notebooks Team: Python, R, and Jupyter subkernel support

Telemetry

Telemetry is collected when the dotnet-interactive tool is started. (If you are using the .NET Interactive libraries directly, they do not emit telemetry.) Once dotnet-interactive is running, it emits the names of packages imported into the notebook and the languages used to run individual cells. This data is hashed, allowing us to count unique values, but the pre-hashed values cannot be obtained from the telemetry. We do not collect any additional code or clear text from cells. All telemetry is anonymous. In addition, dotnet-interactive reports the usage for a specific subset of the verbs in the .NET Interactive CLI. Those verbs are:

• dotnet interactive jupyter
• dotnet interactive jupyter install
• dotnet interactive stdio

How to opt out

The .NET Interactive telemetry feature is enabled by default. To opt out of the telemetry feature, set the DOTNET_INTERACTIVE_CLI_TELEMETRY_OPTOUT environment variable to 1 or true.

Disclosure

The .NET Interactive tool displays text similar to the following when you first run one of the .NET Interactive CLI commands (for example, dotnet interactive jupyter install). Text may vary slightly depending on the version of the tool you're running. This "first run" experience is how Microsoft notifies you about data collection.

Telemetry
---------
The .NET Core tools collect usage data in order to help us improve your experience.The data is anonymous and doesn't include command-line arguments. The data is collected by Microsoft and shared with the community. You can opt-out of telemetry by setting the DOTNET_INTERACTIVE_CLI_TELEMETRY_OPTOUT environment variable to '1' or 'true' using your favorite shell.

To disable this message and the .NET Core welcome message, set the DOTNET_INTERACTIVE_SKIP_FIRST_TIME_EXPERIENCE environment variable to true. Note that this variable has no effect on telemetry opt out.

Trademarks

This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft trademarks or logos is subject to and must follow Microsoft's Trademark & Brand Guidelines. Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship. Any use of third-party trademarks or logos are subject to those third-party’s policies.