Mastonaut is a Mastodon client for Mac.

Mastodon is a distributed social network of over 2 million users and hundreds of servers catering to the most varied set of interests and topics. 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.
* Keyboard navigation, so you can quickly browse through your feed
* Polls support: Vote on polls right from your timelines, and compose your own, right from Mastonaut.
* Instance emoji support: Each mastodon instance has its own set of custom and often animated emoji. Mastonaut makes sure you can enjoy them at their best by letting you see them in your timelines, and also letting you insert them using a picker in the composer. But if you're a pro you can also insert instance emoji by simply typing their shortcode between colons.
* 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).
* Mention auto-complete: Just type the first few characters from a user's handle to get Mastonaut to suggest them to you.
* 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.
* Search: Find users by handle or display name, and lookup hashtags.
* Delete & Redraft: We all make typos, so Mastonaut lets you quickly delete and re-draft your statuses. It will even reuse the attachments from the original status so you don't need to upload them again.
* Notifications: Get notified when other users mention you, or favorite your toots. Notifications can be configured per account.
* Share extension: Share webpages, text, and images right from other apps such as Safari, Photos, or Finder.
* Saved tags: Bookmark your tags to easily browse through them later.
* Account editing support: You can update most of your accounts settings from Mastonaut, including your avatar and header, your bio, fields, and more.

The goal for Mastonaut is to be the best client for Mastodon, period. User feedback is extremely welcome, as this is the only way that such a bold goal can be achieved.

If you're unfamiliar with the Mastodon network and would like to learn more, visit
To learn more about Mastonaut, visit

Note to Pleroma users: Although Pleroma servers are supported, there are some quirks and differences in the APIs that makes it hard for a client to support both Pleroma and Mastodon fully. In cases where API issues are present, Mastonaut opts to honor Mastodon's behavior first. Bugs have been filed with Pleroma's developers for the known issues, but since Mastodon is a complex system, comprehensive support can't be guaranteed. Feel free to reach out at the support link for Mastonaut if you have any questions. Thank you for your understanding.

Mastonaut will not interact with servers that are known to not moderate the content posted by their users. The list of blocked servers is not comprehensive, and might change under request from Apple, or at the discretion of the developer. The list of blocked servers is available at the support link. Thank you for your understanding.

What’s New

Version 1.3.4

This update brings a bunch of new features and improvements to Mastonaut!

* New: keyboard navigation – Use your keyboard to navigate around Mastonaut, favorite, boost, reply to toots, and more.
* New: User filters support – Mastonaut will now respect the filters you've setup (the ability to modify filters from Mastonaut will come soon)
* Improved: Mastonaut now renders animated emoji much more efficiently (no more hogging CPU)
* Fixed: Mastonaut no longer looks weird if it was launched on dark mode, and then the system was transitioned to light mode.
* Fixed: Using Mastonaut on multiple Macs should no longer produce warnings that an account needs re-authentication
* Fixed: Lots of small UI glitches and other bugs

Ratings and Reviews

4.0 out of 5
1 Rating

1 Rating


Bruno Philipe Resende Silva
8.8 MB

macOS 10.13 or later, 64-bit processor



Age Rating
Unrestricted Web Access


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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