ModsJava
AntiMap
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on ModrinthAntiMap
Server-side anti-minimap for Paper 1.21+.
Stops minimap and X-ray style client mods from giving players an unfair advantage — without touching a single client. Everything happens server-side, in the packets your server was already sending.
Features
- Chunk block obfuscation — hidden blocks (ores, chests, spawners) are replaced with decoys in outgoing chunk packets before minimap mods ever see them
- Three obfuscation engines — pick between a fixed decoy per area, a fully random pick per block, or a random pick per Y-layer, trading off noise against uniformity
- Exposed-block awareness — a block is only obfuscated if nothing within its neighbor radius is already visible, so legitimately-exposed ores stay untouched
- Entity-radar mitigation — reduces what radar-style minimap mods can detect about nearby entities
- Minimap-mod channel detection — flags players whose client registers known minimap plugin messaging channels
- Bypass permissions — exempt trusted staff from obfuscation or radar hiding individually
Commands
| Command | Description |
|---|---|
/antimap reload |
Reload the configuration |
/antimap status |
Show current AntiMap status |
/antimap check <player> |
Check a player's bypass flags, hidden-radar count, and flagged channels |
/antimap toggle <obfuscation|radar|detection> |
Toggle a subsystem at runtime (persists to config) |
Alias: /amap
Permissions
| Permission | Default | Description |
|---|---|---|
antimap.status |
op |
View AntiMap status |
antimap.reload |
op |
Reload the configuration |
antimap.check |
op |
Inspect a player's AntiMap state |
antimap.toggle |
op |
Toggle subsystems at runtime |
antimap.admin |
op |
Grants all of the above |
antimap.bypass.obfuscate |
false |
See real blocks, bypassing chunk obfuscation |
antimap.bypass.radar |
false |
See all entities, bypassing radar mitigation |
Configuration highlights
obfuscation.engine-mode—1(fixed decoy per area, depth-aware),2(random per block), or3(random per Y-layer)obfuscation.update-radius— neighbor radius used for the "is this block exposed to air" checkobfuscation.hidden-blocks— the exact material list to obfuscate (ores, spawners, chests, etc. by default)
Setup
- Drop
AntiMap.jarinto your server'splugins/folder. - Restart the server.
- Adjust
obfuscation.hidden-blocksandengine-modeinconfig.ymlto taste, then/antimap reload.
Requirements & compatibility
- Server: Paper 1.21+ (Purpur works).
- Java: 21 or newer.
- Optional soft-depends: ProtocolLib, ProtocolSupport, ViaVersion, ViaBackwards, ViaRewind, Geyser-Spigot — AntiMap runs without them, but detects and adapts to cross-version and Bedrock clients when present.
AntiMap is open-source and MIT-licensed.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.1, 1.21.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Ships as AntiMap-1.0.5.jar — drop this file into the mods folder
- Download size: 5.1 MB
- Download link checked 2 Oct 2026 — working
These come from our own check of the pack file, not from the source page.