About this app
Ark is an R kernel for Jupyter applications. It was created to serve as the interface between R and the Positron IDE and is compatible with all frontends implementing the Jupyter protocol.
Ark aims to provide a complete set of reusable and interoperable tools for implementing IDEs for R:
- It is a Jupyter kernel that provides structured interaction (inputs and outputs) between R and a frontend.
- It is an LSP server that powers intellisense features such as completions, jump-to-definition, find-references, diagnostics, etc. It also has some formatting capabilities that we plan to develop over time.
- It is a DAP server for sophisticated step-debugging of R functions. It manages source references, creating them on the spot if needed, and integrates tightly with the Jupyter kernel to step through R code transparently and inspect local variables. Note: Support for breakpoints is currently missing but you can use debug(), debugonce(), or browser() to drop into the debugger.
The LSP and DAP features are currently only available in Positron but will be made available to other frontends in the future.
Install with Winget
Command line
PS> winget install --id Posit.Ark -e
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Official manifest sources
Downloads for version 0.1.252
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Version 0.1.251
Apr 29, 2026
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Apr 2, 2026
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Apr 1, 2026
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Apr 1, 2026
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Mar 31, 2026
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Mar 20, 2026
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Mar 19, 2026
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Mar 11, 2026
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Mar 9, 2026
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Mar 8, 2026
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Mar 8, 2026
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Mar 6, 2026
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Mar 3, 2026
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Mar 3, 2026
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Mar 3, 2026
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Feb 27, 2026
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Feb 25, 2026
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Feb 25, 2026
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Feb 25, 2026
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Feb 24, 2026
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Jan 30, 2026
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Jan 28, 2026
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Jan 27, 2026
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Jan 26, 2026
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Jan 20, 2026
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Dec 16, 2025
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Nov 27, 2025
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Nov 26, 2025
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Nov 18, 2025
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Oct 28, 2025
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Oct 7, 2025
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Oct 1, 2025
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Aug 27, 2025
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Jul 30, 2025
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Jun 25, 2025
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Jun 25, 2025
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Jun 24, 2025
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Jun 20, 2025
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Jun 5, 2025
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Jun 5, 2025
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Jun 4, 2025
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Jun 3, 2025
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May 29, 2025
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