As of 1.21.2, this plugin is no longer needed. Simply configure pause-when-empty-seconds in your server.properties file instead.
This plugin stops the server tick when the last player disconnects, and starts ticking again automatically when a player joins the server. This can save server resources in some cases, especially if you have a lot of spawn chunks or force-loaded chunks.
As opposed to other solutions, plugins like Dynmap will continue working and no "Can't keep up" messages will be shown. FreezeHibernate also does not require multiple connection attempts to unfreeze the server.
This uses the new tick debugging feature introduced in 1.20.3/1.20.4, and as such will not work on versions older than 1.20.4.
There are no commands or configuration files. If you wish to unfreeze or freeze the server manually, you can use the vanilla command.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20.4, 1.20.5, 1.20.6
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as FreezeHibernate-1.0.jar — drop this file into the mods folder
- Download size: 2 KB
- Download link checked 29 Aug 2026 — working
These come from our own check of the pack file, not from the source page.