JoinJail
Java mod listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.
Do you find that the whitelist does not work properly when playing in offline mode? JoinJail creates a small bedrock jail very very very far away from…
⬇ Download on ModrinthJoinJail
JoinJail was made to create a sort of password protected server. We found that running a Minecraft server in offline mode made our whitelist not work properly. So I made this mod.
This mod generates a bedrock jail / holding place very very very far away from spawn. The only way to leave the jail is by using the set password. If a user dies in the jail they will spawn outside the jail but the first tick after spawning they will be back in the jail.
Usage
If you join a server with this mod you are required to enter the set password, this is done with the command:
/joinjail
/joinjail is the command and should be followed by the set password. If correct, you will be added to the whitelist and you can now always join.
Commands
- /joinjail setPassword
- This will set a new password
- /joinjail ban
- This will ban the selected player with the given reason. (This can be undone with the regular /pardon command)
Config
In the Minecraft config folder there will be the JoinJail folder. In here you will have the whitelist and password files
- whitelistfile.txt
- this list contains the list of players whitelisted
- password.txt
- this file contains the password that is needed to join the server.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20
- 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 joinjail-1.5.0.jar — drop this file into the mods folder
- Download size: 29 KB
- Download link checked 3 Nov 2026 — working
These come from our own check of the pack file, not from the source page.