Creating a Wiki Page Library

If you are using a Classic SharePoint site:

Go to the Site Content, and click the Add an app button. Find Wiki page library, click it and create a name for this library:



If you are using a SharePoint Modern Team site:


On the main page of your site, please click the button New and select App from the dropdown list. Find Wiki page library, click it and create a name for the library:




Creating a Wiki Page Inside a Library

If you are using a Classic SharePoint site:


Open the library and go to the Page tab. Find the button called View All Pages and click on it to see all the pages in this library. Click on the plus button with the text New Document, create a name for your new wiki page and click the Create button. That’s it, after this you are able to build your page. Save it.



If you are using a  SharePoint Modern Team site:


Open the library and go to the Page tab. Find the button called View All Pages and click on it to see all the pages in this library. Click the button New with a plus icon on it and choose the Wiki Page item from the drop-down menu. Now type the name for your new wiki page and click the Create button. Once you are done, just save the page you created.