Lazy QR Codes

A easy to use, light weight server side QR code generator

136 Downloads

fabricdecorationutility

Rent Server with this Mod

Screenshots

About this Mod

QR codes everywhere!

This is a simple, easy to use, server side and lightweight mod for generating QR codes in minecraft.

Warning: This mod creates AND PLACES the QR code at the specified location, meaning it will remove any blocks in the way!

How does it work?

It's simple! Stand where you want the origin (bottom right corner of the code) to be, and type in /qr <link>.

It works for all players, not requiring OP. For extra help type /qr help. The QR code always generates in front of, and to the left of the player

NOTE: The QR code automatically determines the size, meaning you can't set the size yourself!

Available Versions

Lazy QR Codes 1.1.0release

MC 1.21.4fabric

February 26, 2025

Lazy QR Codes 1.0.0release

MC 1.21.4fabric

February 26, 2025

How to Install Lazy QR Codes on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.4).

Install Mod

Open the mod browser in the dashboard and search for "Lazy QR Codes". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.4

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Lazy QR Codes server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.4). You can switch loaders with one click in the panel.

Is Lazy QR Codes compatible with fabric?

Lazy QR Codes officially supports fabric for Minecraft 1.21.4. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Lazy QR Codes – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Lazy QR Codes consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.