Side by side

Amethyst vs Cosmic Client

Both stand on minecraft launchers. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Amethyst

Free plan Mac

Amethyst offers configurable tiling layouts and keyboard controls at no cost for macOS users. Note the accessibility permission requirement and the beta status of custom layouts.

Visit Amethyst

Cosmic Client combines a free Cosmic Games server client with configurable HUD, chat, minimap, blueprint, waypoint, and account features. Its use depends on having a Minecraft.net account and playing on supported Cosmic servers.

Visit Cosmic Client

The facts

	Amethyst	Cosmic Client
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	Mac	Windows
Lowest paid plan	Free or on request	Not published
Plans published	2	None
Maker	Not published	Not published
Website	github.com	cosmicclient.com
On minecraft launchers	#68 of 76	#72 of 76

Amethyst: what it does well

Free to use under an MIT license.
Includes multiple built-in layout choices.
Keyboard shortcuts move windows between screens or Spaces.
Project says it does not collect or transmit personal information.

What to know first

Requires macOS 10.15 or later.
Requires permission to use macOS accessibility APIs.
Custom JavaScript layouts are marked beta.

Cosmic Client: what it does well

Free plan for Windows players
Customizable HUD displays many game details
Multiple accounts switch without restarting
Minimap includes zoom and faction overlays
Waypoints can show named beacons

What to know first

Requires a Minecraft.net account
Blueprint printer needs server permission
Windows is the listed platform

Alternatives to Amethyst Alternatives to Cosmic Client The whole list