LOMP - Limited Offline Mode Paper

Limited Offline Mode Paper

Let specific players join your online-mode Paper server without Mojang authentication — no proxy, no config changes, no server restarts required.

Perfect for server admins, developers, and staff who need emergency or testing access without exposing the entire server to offline mode.

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Features

• Whitelist by username — add names to a simple text file, done
• Player groups — batch players into named groups and toggle them on/off with a command
• Persists across restarts — config is file-based, nothing is lost on reboot
• Live reload — /lomgroup group reload applies changes instantly, no restart needed
• No proxy needed — works directly on Paper, no Velocity or BungeeCord required
• Full login event support — fires AsyncPlayerPreLoginEvent and all standard Bukkit events normally

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Quick Start

1. Drop the JAR into your plugins/ folder
2. Start the server — allowed-users.txt is created automatically
3. Add usernames to plugins/LimitedOfflineMode/allowed-users.txt
4. Players on the list can now join without Mojang auth

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Commands

Command	Description
/lomgroup group add <group> <players>	Add players to a group
/lomgroup group enable <group>	Allow the whole group to join
/lomgroup group disable <group>	Block the group
/lomgroup group toggle <group>	Flip a group on/off
/lomgroup group list	See all groups and their status
/lomgroup group reload	Reload config files live

Permission: limitedofflinemode.admin (default: op)

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Requirements

• Paper 1.21.x
• Java 21+

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Forked from moritxius-matsuda/LimitedOfflineMode (original Velocity/BungeeCord plugin).
This is a full rewrite for Paper by chank_op.

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⚠️ For administrators and developers only. Do not use to allow cracked clients or bypass Mojang auth for regular players. You are responsible for your own EULA compliance.