Add mobile app friendly cover images to spaces

Last updated: September, 2026

When adding a cover image to eligible spaces in your community, you also have the option to add a mobile thumbnail image designed for mobile devices. These thumbnails are visible and supported on mobile browsers and the Circle mobile apps.

Add a thumbnail image

You can add thumbnails to the following areas in your community:

  • Post spaces

  • Image spaces

  • Event spaces

To add a thumbnail image, follow these steps:

  1. Click Community in the left sidebar, then select Spaces.

  2. Hover over the space name and click More actions (three dots) and select Edit space.

  3. Under the Customise tab, navigate to the Images section.

  4. Click Upload next to the Mobile thumbnail option.

  5. In the dialog, click one of the tabs to: 

    • Choose an image from the Unsplash library

    • Upload the image from your desktop

      • 📷 Recommended cover image size: 800 x 460 px with a 16:9 aspect ratio. You can upload the image in JPG, PNG, or GIF format. You can also explore our Canva templates for thumbnails.

    • Embed link

  6. To adjust the image when adding it via any of the options, you can: 

    • Click and drag the image to fit within the allowed dimension.

    • Use the slider at the bottom of the dialog to zoom in or out on the image.

  7. Click Save.

To update or remove the thumbnail later, return to the Customize tab in the space settings and click Replace or Remove next to the Mobile thumbnail option.

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