CheckHacks vs ReducedX-Anti Cheat

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.

ReducedX-Anti Cheat is a free, self-hosted anti-cheat plugin for Minecraft Java Edition servers using Paper or Spigot. The listing specifies Minecraft 1.21.x compatibility. Combat checks look for KillAura, attacks beyond 3.2 blocks, AutoClicker, AntiKnockback, and hitbox exploits. Movement checks cover Speed, Fly, NoFall, Jesus, Step, and Scaffold, with lag compensation and a TPS-based safe mode. World checks use mining paths and ore rates to identify XRay and also detect FastPlace. PacketFlood, JoinFlood, and ReconnectSpam protections address packet-spam and bot attacks. Staff can use the /punish GUI to issue warnings, kicks, mutes, and bans, including permanent and IP bans; button access is permission-based, and alert levels can be configured. The config.yml and lang.yml files allow changes to messages, sensitivity, thresholds, per-world checks, and bypass permissions. Violation decay and combination detection are also included. Listed commands cover information, logs, alerts, spectating, and reloading. The listing names ReducedG as author and identifies the license as MIT.