Chestlogger
by sayanbnk2008
Chestlogger records who opens, moves and breaks containers on a Fabric server, so owners can trace and roll back the activity.
What it does
Container events are written to append-only binary files with the .clog extension, using LZ4 compression, and the logging runs in a lock-free memory ring buffer instead of an SQL database. The author states this keeps the cost off the server tick. Chestlogger also supports double chests and includes a built-in web dashboard for browsing the audit history.
Claims let players protect containers. A container claimed by name is protected at the moment it is placed, unowned containers can be claimed in batches within a radius of 16 blocks for players and 32 for admins, and ownership can be handed over with a transfer command. A recent audit history can show prior ownership, which the author describes as protection against claim sniping. Containers generated in dungeons, mineshafts and shipwrecks start as unclaimed natural containers, so they do not trigger false alerts.
The mod is published for Fabric and runs on client and server. Fabric API is required. Builds exist for 1.21 – 26.3, with 2.7.0+26.3 as the latest Fabric file, and the code is released under the MIT License, so it is open source. Paper, Spigot, Bukkit and Purpur are listed as server platforms.
Key features
Zero-lag container audit
Container events are recorded through a lock-free buffer, and the author states the logging adds no tick cost.
Raid velocity alerts
Rapid looting across several chests at distinct coordinates within a 300-second window raises an immediate critical alert.
Trust and exemptions
Teammates can be trusted to open containers without triggering alarms.
Item custody tracing
A command rebuilds the custody history of an item held in the main hand or of a container slot.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Who it’s for: Server owners and administrators who want a record of container activity and tools to respond to looting and griefing.
How it compares
CClaims is server-side only, open source under the GNU Lesser General Public License v3.0 only, and covers 1.21.5 – 26.3, so only the server needs it. Safe Zone Claims is server-side only and MIT licensed for 1.21 – 26.2. Quick Container Insert is client and server with the CC0 1.0 Universal license, so both sides need it. Chestlogger is a client and server mod too, and it covers the full 1.21 – 26.3 range.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Chestlogger | Fabric | 1.21 – 26.3 | Client and server | 2026-09-30 |
| CClaims | Fabric | 1.21.5 – 26.3 | Server-side only | 2026-09-15 |
| Safe Zone Claims | Fabric | 1.21 – 26.2 | Server-side only | 2026-08-13 |
| Quick Container Insert | Fabric | 1.21 – 26.2 | Client and server | 2026-07-22 |
Questions
Does Chestlogger need Fabric API?
Does the mod have to be on every player's client?
Can Chestlogger run on Paper or other server platforms?
In the catalog
Chestlogger is one of 4,058 Storage mods on ModsFinder, and one of 2,474 Storage mods for Fabric. 8,071 mods support Minecraft 26.3.
Similar mods
What the author says
High-Performance, Zero-Blocking Container Audit, Rollback, Item Provenance & Smart Theft Detection System Dual Native Server Releases for Fabric Mod & Paper Plugin on Minecraft 26.2 (Pure Java 25). ChestLogger is an ultra-fast, zero-lag anti-griefing system, smart theft detection engine, and item custody tracker…
Official listing
- Modrinth page
- modrinth.com/mod/chestlogger
- Owner
- sayanbnk2008
- Published
- 2026-08-17
- Updated on Modrinth
- 2026-09-30
- Facts verified
- 2026-10-15