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SPECIFICTION
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CheckHacks

github.com

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Spec score 8.1 #5 of 53 in Minecraft anti-cheat plugins

What it is

CheckHacks is a free, server-side Minecraft anticheat that detects client-side mods and hack clients using the Sign Translation Vulnerability. Players do not need to install a client mod: the plugin briefly places signs with special translation keys and checks the client’s response. Administrators can choose METEOR, TRANSLATE, or KEYBIND detection modes for each mod and add custom detections in checkhacks.yml. DoubleCheck repeats scans that return DETECTED or PROTECTED to help reduce false positives. CheckHacks can check players after Grim, Vulcan, Spartan, or Matrix flags them, and supports custom commands and detection alerts. A browser editor running on the game server lets administrators review scan history, look up players, and start checks. Access uses one-time tokens, while scan records are kept in a built-in SQLite database. Named server platforms include Bukkit, Folia, Paper, Purpur, and Spigot, with Minecraft versions 1.21 and later listed. The maker warns that client patches can temporarily block the detection method. The project is MIT-licensed, and donations are optional.

Spec sheet

Purpose
CheckHacks is a server-side anticheat that detects client-side mods and hack clients using the Sign Translation Vulnerability.Read 30 Sep 2026 · github.com
Support
The maker directs users to Discord for help, feature requests, and requests to add mods.Read 30 Sep 2026 · github.com
License
The project is licensed under MIT.Read 30 Sep 2026 · modrinth.com
Anticheat integrations
It hooks into Grim, Vulcan, Spartan, and Matrix to check players after those anticheats flag them.Read 30 Sep 2026 · github.com
Compatibility
The Modrinth listing names Bukkit, Folia, Paper, Purpur, and Spigot as supported platforms.Read 30 Sep 2026 · modrinth.com
Custom detections
Administrators can add custom mods to detect in checkhacks.yml.Read 30 Sep 2026 · github.com
Detection method
The plugin briefly places signs with special translation keys and checks how the player's client responds.Read 30 Sep 2026 · github.com
Detection modes
It supports METEOR, TRANSLATE, and KEYBIND detection modes, selected for each mod.Read 30 Sep 2026 · github.com
Discord integration
It supports separate Discord webhooks for hack checks and language checks, with a Components V2 option.Read 30 Sep 2026 · github.com
False positive checks
DoubleCheck repeats scans that return DETECTED or PROTECTED to help reduce false positives.Read 30 Sep 2026 · github.com
No client install
Players do not need to download or install a client mod.Read 30 Sep 2026 · github.com
Notable limitation
The maker says mod developers can patch clients to block the detection method, which can temporarily stop detection for those clients.Read 30 Sep 2026 · github.com
Scan history
Scans are saved in a built-in SQLite database without requiring separate setup.Read 30 Sep 2026 · github.com
Web editor
The web editor runs on the game server and lets administrators review scan history, look up players, and start checks in a browser.Read 30 Sep 2026 · github.com
Web editor access
The web editor uses one-time tokens generated with /cheditor rather than a shared password.Read 30 Sep 2026 · github.com

Plans and prices

CheckHacks Free Always free · donations optional Read 30 Sep 2026 · github.com

Every CheckHacks plan and price →

Strong points and limits

Strong points

  • Players need no client-side installation.
  • Administrators can define custom detections.
  • Includes a browser editor and scan history.
  • Can check players flagged by four named anticheats.

Limits

  • Client patches can temporarily block detection.
  • Minecraft 1.21 or later is listed.
  • Detection relies on client responses to special signs.

Who it suits

CheckHacks suits Minecraft server administrators seeking server-side checks for client mods and hack clients without requiring players to install a client mod. It is aimed at servers using supported platforms and Minecraft 1.21 or later.

Verdict

CheckHacks provides configurable server-side detection, scan history, and integrations with several anticheats. Its detection method can be temporarily blocked by client patches.

Where Specifiction places it

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