


MineCaptcha
Vanilla compatible captcha test for minecraft java servers designed to help prevent automated bots from joining your server
[!NOTE]
This is NOT a bulletproof solution for preventing bots from joining your server
INFO
This mod currently offers 2 different types of captchas that server owners can choose from
TEXT:
This mode has the player enter a simple string of displayed minecraft text
IMAGE:
This mode has the player enter numbers from a series of images presented to them, while this mode is more secure it also requires a bit more setup, see below for instructions
Image mode setup
- Run the server with this mod to generate the config file
- Edit the config file for this mod
minecaptcha.cfgsettingmethodtoIMAGE - Execute the mod as a java program to generate the resource pack and number image mappings
java -jar minecaptcha-x.x.x.jar
- Setup
resourcepack.zipto be distributed as or combined with your server resource pack - Copy
captchaimage.jsoninto the config folder for your server It is a good idea to re generate this resource pack and json file with some regularity
note: when the resource pack is change it is REQUIRED to also changecaptchaimage.json.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 26.2
- 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.
- Ships as minecaptcha-1.1.3.jar — drop this file into the mods folder
- Download size: 1.7 MB
- Download link checked 9 Sept 2026 — working
These come from our own check of the pack file, not from the source page.