Ledger Mod (1.21.11, 1.20.1) is a server-side logging and rollback mod for Minecraft servers running on Fabric or Quilt. It records world interactions and allows administrators to inspect, search, rollback, restore, and manage changes in a structured and reliable way. The mod is written in Kotlin and is designed to overcome limitations found in older logging solutions, providing better performance, extensibility, and accuracy.

Features:

Core Capabilities

  • World Activity Logging
    • Tracks block placement and removal
    • Logs item interactions and transfers
    • Records entity-related actions
    • Associates actions with players or sources
  • Inspection & Search
    • Inspect blocks in-world to view historical actions using /ledger inspect
    • Advanced log searching with multiple filters via /ledger search
    • Pagination support for large result sets using /ledger page
  • Rollback & Restore
    • Preview changes before applying them with /ledger preview
    • Rollback logged actions selectively using /ledger rollback
    • Undo rollbacks and restore original changes with /ledger restore
  • Maintenance & Management
    • View mod and database status using /ledger status
    • Purge old log entries to reduce database size with /ledger purge
    • Teleport to logged event locations using /ledger teleport
    • View player-related information with /ledger player

Configuration

  • Configuration file located at config/ledger.toml
  • Customizable options include:
    • Message colors and output themes
    • Search behavior such as page size
    • Database queue size and timeout settings
    • Action filters based on world, source, object type, or action type

Database & Storage

  • Uses SQLite by default
  • Supports external databases through extensions:
    • MySQL
    • H2
    • PostgreSQL

Extensions & Networking

  • Extension system allows:
    • Additional database backends
    • New commands and configuration options
  • Built-in networking layer for:
    • Inspect and search data packets
    • Rollback, restore, and purge requests
    • Server-client synchronization and responses

Key Advantages

  • Comprehensive logging of Minecraft world changes
  • Powerful and flexible search and filtering system
  • Safe rollback and restore workflow with preview support
  • Scalable database handling for large servers
  • Permission support compatible with permission systems such as LuckPerms
  • Extensible architecture through official extensions

Commands:

Commands for Ledger provide comprehensive control over inspection, querying, altering, and managing logged world data on a Minecraft server. Each command is invoked under the root command /ledger (alias lg).

  • Root
    • /ledger (alias lg): The central command entry point. Grants access to all subcommands. Permission required: ledger.commands.root.
  • Inspect
    • /ledger inspect <x> <y> <z>: Inspect logs at specific world coordinates.
    • /ledger inspect: Toggle inspect mode on/off for the player issuing the command.
    • /ledger inspect on: Force inspect mode on.
    • /ledger inspect off: Force inspect mode off.
    • Alias: i, Permission: ledger.commands.inspect.
  • Search
    • /ledger search <params>: Perform advanced database queries with filters (e.g., player, object, action, world). Results support pagination. Alias: s, Permission: ledger.commands.search.
  • Page
    • /ledger page <page>: Jump to a specific page in search results. Alias: pg, No permission required.
  • Player
    • /ledger player <profiles>: Lookup player record details such as first and last join times. Alias: pl, Permission: ledger.commands.player.
  • Preview
    • /ledger preview rollback <params>: Preview world state if matching actions are rolled back. Alias: pv, Permission: ledger.commands.preview.
    • /ledger preview restore <params>: Preview world state if matching rollbacks are restored.
    • /ledger preview apply: Apply the current preview to the world.
    • /ledger preview cancel: Cancel any active preview.
  • Rollback
    • /ledger rollback <params>: Undo logged actions matching filters (e.g., block, item, entity). Alias: rb, Permission: ledger.commands.rollback. Recommended to preview before execution.
  • Restore
    • /ledger restore <params>: Undo previously applied rollbacks (block, item, entity), restoring world state. Permission: ledger.commands.rollback. Recommended with preview.
  • Purge
    • /ledger purge <params>: Remove log entries from the database that match filters (e.g., time range, action type). Permission: ledger.commands.purge.
  • Status
    • /ledger status: Display current mod version, queue state (busy/free), and quick links. Permission: ledger.commands.status.
  • Teleport
    • /ledger tp <world> <x> <y> <z>: Teleport to a specific world coordinate, often used with search results. Permission: ledger.commands.tp.

Command Parameters such as player:, object:, action:, world:, and others refine filters used in search, rollback, restore, purge, and preview.

Screenshots:

Requires:

Fabric Modloader

Fabric API

How to install:

Click the following link to view details: How to Install Mods for Minecraft Java Edition on PC: A Beginner Guide

Ledger Mod (1.21.11, 1.20.1) Download Links

Other Versions:

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For Minecraft 1.18.1

Fabric version: Download from Server 1 – Download from Server 2

For Minecraft 1.17.1

Fabric version: Download from Server 1 – Download from Server 2

For Minecraft 1.18.2

Fabric version: Download from Server 1 – Download from Server 2

For Minecraft 1.19.2

Fabric version: Download from Server 1 – Download from Server 2

For Minecraft 1.19.3

Fabric version: Download from Server 1 – Download from Server 2

For Minecraft 1.19.4

Fabric version: Download from Server 1 – Download from Server 2

For Minecraft 1.20.1, 1.20

Fabric/Quilt version: Download from Server 1 – Download from Server 2

For Minecraft 1.20.2

Fabric/Quilt version: Download from Server 1 – Download from Server 2

For Minecraft 1.20.4

Fabric/Quilt version: Download from Server 1 – Download from Server 2

For Minecraft 1.20.5

Fabric/Quilt version: Download from Server 1 – Download from Server 2

For Minecraft 1.20.6

Fabric/Quilt version: Download from Server 1 – Download from Server 2

For Minecraft 1.21.1, 1.21

Fabric/Quilt version: Download from Server 1 – Download from Server 2

For Minecraft 1.21.3

Fabric/Quilt version: Download from Server 1 – Download from Server 2

For Minecraft 1.21.4

Fabric/Quilt version: Download from Server 1 – Download from Server 2

For Minecraft 1.21.5

Fabric/Quilt version: Download from Server 1 – Download from Server 2

For Minecraft 1.21.8, 1.21.7, 1.21.6

Fabric/Quilt version: Download from Server 1 – Download from Server 2

For Minecraft 1.21.10, 1.21.9

Fabric/Quilt version: Download from Server 1 – Download from Server 2

For Minecraft 1.21.11

Fabric/Quilt version: Download from Server 1 – Download from Server 2

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