Simple, elegant, and native
Mastodon client for Mac.

  • Multi-Account Support

    Use several accounts simultaneously

  • Column-Based Layout

    Quickly see all that's happening

  • Content and Media Warnings

    So you don’t see what you don’t want to see

  • Animated Emoji

    Mastodon is not the same without them

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Mastonaut Icon

Download Now

Available on the Mac App Store

Download on the Mac App Store

Mastodon is a vibrant social network home to 2 million users

With hundreds of communities that cater to the most varied set of subjects, Mastodon is a true internet community: No central hosts, no corporate-owned environments, and no ads.

Federated Network

There are no central authorities in Mastodon. The entire network is based on individual and community-owned servers — or instances — that communicate with each other in a transparent manner.

Learn More About Mastodon


Mastonaut is an easy-to-use and beautiful window into this world. Browse, follow, interact, and contribute to this amazing community from the comfort of your Mac.

As a lovingly-crafted app from a Mastodon user to other Mastodon users, Mastonaut is made to integrate with macOS in the finest aspects. Some features include:

  • Thoughtful interface, made for the Mac, with simple usability and powerful capabilities.
  • A concise status composer, that also lets you submit posts with image and video attachments that can be drag-and-dropped from Finder.
  • Versatile column-based layout, that allows browsing anywhere from a simple and straightforward single-column mode, to a many column window that lets you keep everything that's happening now right in front of you.
  • Multi-Account support, so that you can manage and post from several accounts (even in different servers) at once (and quickly switch between them via keyboard shortcuts).
  • Full support for media and content warnings (spoiler warnings), so that you don't have to see what you don't want to see.
  • Annotated media support, so you can access the accessibility labels of attachments in posts, but also insert annotations on your own posts.
  • Animated emoji support in the timelines, because Mastodon is not the same without them.

Mastonaut Icon

Download Now

Available on the Mac App Store

Download on the Mac App Store