FastQuit is a lightweight optimization mod that lets you return to the Minecraft title screen immediately while your singleplayer world continues saving in the background, available for Fabric and Quilt mod loaders.
Every Minecraft player knows the drill: you quit your singleplayer world and stare at a "Saving world" screen for seconds — sometimes much longer if you play on high render distances or have a large world. FastQuit solves this annoyance by decoupling the server-side save process from the client, so you can jump back to the title screen, browse your world list, or even start a different world while the previous one finishes saving. With over 15 million downloads on Modrinth, FastQuit has become one of the most popular quality-of-life mods in the Minecraft ecosystem, and for good reason — it addresses a pain point that affects virtually every singleplayer session.
Key Features of FastQuit
- Background World Saving — Instead of forcing you to wait on the "Saving world" screen, FastQuit lets the server thread continue saving your world data in the background while you freely navigate the title screen. This means you can immediately start another world, adjust settings, or simply close the game faster. The mod handles all the thread safety concerns behind the scenes, so no data is ever lost.
- Simultaneous Client and Server Unloading — Normally Minecraft unloads client-side chunks and saves server-side data one after the other. FastQuit makes both processes run simultaneously, which results in noticeably faster quit times even on worlds with high render distances where chunk unloading takes significant time.
- Toast Notifications — FastQuit can display a small toast notification when your world finishes saving in the background. This is especially useful when you want confirmation that your progress is safely written to disk before closing the game entirely. You can toggle this feature on or off through the config.
- Background Thread Priority Control — You can adjust how much CPU priority the background save process gets, on a scale of 0 to 10. Lowering the priority means the save takes longer but your client stays smoother — perfect for players who want to immediately jump into another world without any stuttering from the background save.
- Save Time Display — FastQuit can show you exactly how long each world took to save, both in the toast notification and on the world list itself. This is a helpful diagnostic feature if you suspect your world is growing too large or if your storage is slowing things down. Three display modes let you choose between never showing the time, showing it on toasts only, or showing it everywhere.
- Full World List Interaction While Saving — Even while a world is still saving in the background, you can edit its settings, delete it, or recreate it from the world list. FastQuit achieves this by pulling world information directly from the still-running server instance, bypassing the file locks that would normally prevent these actions during a save.
- Configurable via ModMenu — All settings are accessible through a clean config screen via ModMenu, or by manually editing the config file at
.minecraft/config/fastquit-config.txt. No complicated setup is required — install and forget.
Screenshots
How to Install FastQuit
- Download and install Fabric Loader or Quilt Loader for your Minecraft version (1.18 through 1.21.11 are supported).
- Download the FastQuit .jar file for your Minecraft version from the download section below.
- Open your Minecraft installation directory and navigate to the
modsfolder. If it does not exist, create it. - Place the downloaded FastQuit .jar file into the
modsfolder. - Optionally, install ModMenu to access FastQuit's in-game configuration screen for customizing toast notifications, thread priority, and save time display.
Requirements & Compatibility
| Requirement | Details |
|---|---|
| Mod Loaders | Fabric, Quilt |
| Minecraft Versions | 1.18 – 1.21.11 |
| Latest Version | For Minecraft 1.21.11 (Fabric) |
| Dependencies | Fabric Mod Loader or Quilt Loader |
| Optional | ModMenu (for in-game config screen) |
| License | MIT (open source) |
| Author | contaria |
What's New
- Updated to support Minecraft 1.21.11 — ported by community contributor ImGRUI.
- Continued Fabric loader compatibility with the latest game snapshots and releases.
- Community-driven translations now cover 15 languages including Japanese, French, Vietnamese, and Ukrainian.
- Ongoing thread safety improvements to ensure background saving remains stable across all supported versions.
Pros and Cons
Pros
- Eliminates the "Saving world" wait screen entirely for most players
- Appears to be lightweight with no heavy dependencies beyond the mod loader
- Open source under the MIT license with active community contributions
- Wide version support spanning from 1.18 all the way to 1.21.11
- Fully configurable thread priority and notification preferences
- Translated into 15 languages for international players
Cons
- Only supports Fabric and Quilt — no Forge or NeoForge version available
- Does not eliminate all wait time on high render distance worlds due to client-side chunk unloading
- Closing the game entirely while a background save is still running requires the save to finish first
- Configuration requires ModMenu for a GUI — otherwise manual file editing is needed
Alternatives to FastQuit
- Sodium — A comprehensive rendering optimization mod that significantly improves frame rates and overall client performance, often paired with quality-of-life mods like FastQuit.
- Lithium — A general-purpose server optimization mod that speeds up game logic, tick processing, and world generation without changing gameplay mechanics.
- LazyDFU — Defers unnecessary DataFixerUpper initialization to speed up Minecraft's startup time, complementing FastQuit's focus on faster world-quit times.
Download FastQuit
| Minecraft Version | Fabric | Quilt |
|---|---|---|
| For Minecraft 1.21.11 | Download | — |
| For Minecraft 1.21.10 | Download | — |
| For Minecraft 1.21.9 | Download | — |
| For Minecraft 1.21.8 | Download | — |
| For Minecraft 1.21.7 | Download | — |
| For Minecraft 1.21.6 | Download | — |
| For Minecraft 1.21.5 | Download | — |
| For Minecraft 1.21.4 | Download | — |
| For Minecraft 1.21.3 | Download | — |
| For Minecraft 1.21.2 | Download | — |
| For Minecraft 1.21.1 | Download | Download |
| For Minecraft 1.21 | Download | Download |
Always download mods from official sources to stay safe.
Frequently Asked Questions
Is FastQuit safe to use — will I lose my world data?
No, you will not lose any data. FastQuit includes thread safety measures that ensure your world finishes saving completely before any file operations occur. The mod simply moves the save process to the background rather than skipping it. If any unexpected issue does occur, the worst outcome is the action failing and a toast notification informing you — the world data itself remains intact.
Does FastQuit work with Forge or NeoForge?
No — FastQuit is only available for Fabric and Quilt mod loaders. There is currently no Forge or NeoForge port. If you play on Forge, you will need to look into alternative optimization mods or switch to Fabric to use FastQuit.
Can I close Minecraft while FastQuit is still saving a world in the background?
Yes, but the game will wait for the save to complete before fully shutting down. FastQuit is designed to let the save finish when necessary, so closing the game triggers a wait for any in-progress background saves. This ensures your world is never left in a partially saved state.
Does FastQuit work on multiplayer servers?
No — FastQuit is designed specifically for singleplayer worlds. When you disconnect from a multiplayer server, the world saving is handled server-side, so FastQuit's background saving feature does not apply. The mod only activates when quitting a locally hosted singleplayer world.
Is FastQuit compatible with other optimization mods like Sodium and Lithium?
Yes — FastQuit is generally compatible with other popular optimization mods. Since it only modifies the world-quit and saving behavior, it does not conflict with rendering mods like Sodium or server-side optimizers like Lithium. Many players run all three together as part of a standard performance modpack.
