macfix
by swear
macfix is a NeoForge utility for macOS that applies client-side bugfixes to Minecraft, currently for version 1.21.1.
What it does
The mod collects macOS-specific bug fixes and runs only on the client, so a server does not need it and players join without installing anything. Its 0.1.0 build addresses a crash that occurs on macOS 26 and later when the game is closed with Command-Q in borderless window mode. On other operating systems the mod loads without changing anything.
Files are published for NeoForge only, for 1.21.1, with 0.1.0 as the latest build released on 2026-07-26. The code is open source under the MIT License, and the project NOTICE credits Cubes Without Borders, whose work is included in the mod.
Key features
macOS bugfixes
Client-side fixes target problems that appear only when Minecraft runs on macOS.
Command-Q crash fix
Version 0.1.0 prevents a crash on macOS 26 and later when the window is closed with Command-Q in borderless mode.
Safe on other systems
On Windows and other operating systems the mod loads and does nothing, so it can stay installed across machines.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Mac players on 1.21.1
Players running NeoForge 1.21.1 on a Mac can install the mod on their own client to avoid the Command-Q crash in borderless windows.
Who it’s for: Players on macOS who play Minecraft 1.21.1 with NeoForge and use a borderless window. Server owners do not need to install it.
How it compares
Minecraft Borderless Window is also client-side only and open source under the MIT License, but it is published for NeoForge 1.21.1 and deals with window mode rather than macOS crashes. Instant Borderless is client-side only under the MIT License, covers Fabric and NeoForge across 1.21.1 – 1.21.11, and is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| macfix | NeoForge | 1.21.1 | Client-side only | 2026-07-26 |
| Minecraft Borderless Window | NeoForge | 1.21.1 | Client-side only | 2026-08-21 |
| Instant Borderless | Fabric and NeoForge | 1.21.1 – 1.21.11 | Client-side only | 2026-09-15 |
Questions
Does macfix need to be installed on a server?
Which loader does macfix support?
Does macfix change anything on Windows or other systems?
In the catalog
macfix is one of 36,990 Utility mods on ModsFinder, and one of 13,477 Utility mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
Client-only Minecraft mod that collects macOS-specific bug fixes. On macOS 26+, quitting with Command-Q while still in F11 / borderless fullscreen can crash Minecraft; this mod fixes that.
Official listing
- Modrinth page
- modrinth.com/mod/macfix
- Owner
- swear
- Published
- 2026-07-26
- Updated on Modrinth
- 2026-07-26
- Facts verified
- 2026-10-15