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Use this page to quickly find the Office JavaScript API reference for the Office host from which you're building an add-in.
Choose the right API model
- Use application-specific APIs when you're building for Excel, Outlook, PowerPoint, Word, or OneNote and need access to host-specific objects and features.
- Use common APIs for cross-host features such as UI, dialogs, and client settings.
Start with application-specific APIs whenever possible. Use common APIs for scenarios that application-specific APIs don't support. For more information about these API models, see Develop Office Add-ins.
Project add-ins currently use common APIs because there isn't an application-specific JavaScript API for Project.
API reference by host
Excel API reference
JavaScript APIs for building Excel add-ins
Outlook API reference
JavaScript APIs for building Outlook add-ins
Word API reference
JavaScript APIs for building Word add-ins
PowerPoint API reference
JavaScript APIs for building PowerPoint add-ins
OneNote API reference
JavaScript APIs for building OneNote add-ins
Common API reference
JavaScript APIs that can be used by any Office Add-in
Collaborate with us on GitHub
The source for this content can be found on GitHub, where you can also create and review issues and pull requests. For more information, see our contributor guide.
Office Add-ins