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Microsoft 365 Developer

Developer tools, samples, and other resources for building solutions on the Microsoft 365 platform.

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  1. Microsoft-Teams-Samples Microsoft-Teams-Samples Public

    Welcome to the Microsoft Teams samples repository. Here you will find task-focused samples in C#, JavaScript and TypeScript to help you get started with the Microsoft Teams App!

    C# 1.3k 909

  2. Office-Add-in-samples Office-Add-in-samples Public

    Code samples for Office Add-in development on the Microsoft 365 platform.

    JavaScript 959 943

  3. microsoft-365-agents-toolkit-samples microsoft-365-agents-toolkit-samples Public

    Scenario-focused sample applications that help you get started with building Microsoft Teams App.

    TypeScript 463 307

  4. office-js-docs-reference office-js-docs-reference Public

    Microsoft Office JavaScript API Reference

    TypeScript 148 68

  5. office-js office-js Public

    A repository for issues related to the Office JavaScript APIs and Office Add-ins platform. Find the Office.js library in Office.js CDN: https://appsforoffice.microsoft.com/lib/1/hosted/office.js.

    JavaScript 798 119

  6. office-js-docs-pr office-js-docs-pr Public

    Microsoft Office Add-ins Documentation

    458 274

Repositories

Showing 10 of 450 repositories
  • Excel-Custom-Functions-JS Public

    Write your own functions in Excel using JavaScript.

    OfficeDev/Excel-Custom-Functions-JS’s past year of commit activity
    JavaScript 57 24 2 1 Updated Feb 18, 2026
  • office-js-docs-reference Public

    Microsoft Office JavaScript API Reference

    OfficeDev/office-js-docs-reference’s past year of commit activity
    TypeScript 148 MIT 68 8 4 Updated Feb 18, 2026
  • Office-Add-in-samples Public

    Code samples for Office Add-in development on the Microsoft 365 platform.

    OfficeDev/Office-Add-in-samples’s past year of commit activity
    JavaScript 959 MIT 943 23 11 Updated Feb 18, 2026
  • office-js-docs-pr Public

    Microsoft Office Add-ins Documentation

    OfficeDev/office-js-docs-pr’s past year of commit activity
    458 CC-BY-4.0 274 10 11 Updated Feb 18, 2026
  • Office-Js-Requirement-Sets Public
    OfficeDev/Office-Js-Requirement-Sets’s past year of commit activity
    11 56 6 2 Updated Feb 18, 2026
  • Office-Addin-TaskPane Public

    Template to get started writing a TaskPane Office Add-in.

    OfficeDev/Office-Addin-TaskPane’s past year of commit activity
    TypeScript 92 47 3 2 Updated Feb 18, 2026
  • Office-Addin-TaskPane-React Public

    Template to get start started writing a TaskPane Office Add-in for the React framework using TypeScript

    OfficeDev/Office-Addin-TaskPane-React’s past year of commit activity
    TypeScript 82 40 5 2 Updated Feb 18, 2026
  • Excel-Custom-Functions-Shared Public

    Template to get start started writing an Excel custom function Office Add-in that used a shared runtime and TypeScript

    OfficeDev/Excel-Custom-Functions-Shared’s past year of commit activity
    TypeScript 9 7 1 1 Updated Feb 18, 2026
  • Office-Addin-Taskpane-SSO Public

    Project template for creating an Office taskpane add-in that uses SSO.

    OfficeDev/Office-Addin-Taskpane-SSO’s past year of commit activity
    TypeScript 20 18 2 1 Updated Feb 18, 2026
  • Office-Addin-TaskPane-React-JS Public

    Template to get start started writing a TaskPane Office Add-in for the React framework using JavaScript

    OfficeDev/Office-Addin-TaskPane-React-JS’s past year of commit activity
    JavaScript 32 20 0 2 Updated Feb 18, 2026
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