What Are Minecraft Mods Coded In? A Beginner’s Guide to Modding Languages and Tools

Minecraft mods are commonly coded in Java, the same language used to develop the game itself. Learn what Minecraft mods are coded in, from Java to alternative languages.

Ever wondered how to program Minecraft mods? Maybe you’ve played a modded version of Minecraft and thought, “Whoa, how did someone build this?!” If so, you’re not alone. Many players start curious and end up diving deep into the world of modding—tweaking, upgrading, and even building their own multiple mods from scratch.

But here’s the catch: Minecraft mods don’t just magically appear. They’re built using specific coding languages and tools, and if you don’t understand the basics, modding can feel like trying to mine diamonds with a wooden pickaxe. Modding seems complicated and overwhelming.

Let’s dig into the world of Minecraft modding!

Key Takeaways:

• Minecraft mods are made using Java for Java Edition or Python, Lua, JavaScript/JSON for Bedrock.
• Modding teaches real coding skills like logic, structure, and creativity.
• Java is a great beginner language and is commonly used beyond Minecraft.

With the right tools and support, like Software Academy, you can create custom items, mobs, and even whole new game mechanics.

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What Is a Minecraft Mod?

A mod is an add-on or tweak that changes the way Minecraft behaves. So, what are Minecraft mods coded in?

• Add new blocks, creatures, and tools
• Change the game’s physics
• Create completely new games within Minecraft
• Automate tasks like farming or mining
• Make Minecraft way cooler, honestly

Mod Minecraft is a user-generated modification that enhances or changes gameplay. Think of them as game-changers. Want a realistic farming system? There’s a mod for that. Wish you had jetpacks or magic spells? The best mods make it happen.

Many players even create multiple mods to customize their experience fully. You can start with a simple mod installed to tweak gameplay.

But behind every awesome mod is code.

What Language Are Minecraft Mods Coded In?

For Java Edition:

Minecraft: Java Edition isn’t just named after the language for fun—it’s actually written in Java. That means all the core mechanics, from block behaviour to how mobs move, are controlled by Java code.

If you want to tweak the game—whether it’s adding custom weapons, cool new mobs, or an entirely new dimension—you’ll need to speak Java’s language. Modding in Java gives you direct access to the game’s code, letting you customise almost everything.

Java is also behind the modding frameworks that make it easier to build mods without starting from scratch. Here are some big names:

• Minecraft Forge: It’s the OG of modding frameworks. Forge makes it easy to hook into Minecraft’s code and build awesome content. Most of the classic and popular mods you’ve played with were probably made using Forge.
• Fabric: It’s a lightweight alternative to Forge. It’s modular, faster to update, and perfect if you want to make simpler mods or play with the latest Minecraft version.
• Quilt: Think of Quilt as Fabric’s cooler cousin. It builds on Fabric’s foundation but adds more features and flexibility for mod developers.

These frameworks are like toolboxes—Java coding for kids is the tool that makes them all work. So if you’re ready to dive deep into Minecraft’s code and truly make the game your own, Java is your best friend.

For Bedrock Edition:

Modding Minecraft Bedrock Edition is a whole different beast compared to the Java version. If you’re playing Minecraft on a console, tablet, or mobile device, you’re using the Bedrock Edition, and modding it doesn’t involve Java at all. 

Unlike Java Edition, where you code mods and overhaul the entire game engine, Bedrock Edition mods—called add-ons—are more about customising and extending the game’s existing systems.

JSON

JSON or JavaScript Object Notation is the main format used to configure game behaviour in Bedrock. You won’t be writing logic in JSON, but you’ll be telling the game what things are and how they behave. For example:

• Want to create a mob with more health or a different look?
• Want to change how a block reacts when placed?
• Want to tweak item properties or game rules?

It’s all about defining the “rules” that the game should follow. JSON files are super readable and easy to write, making them a great entry point for newbie modders.

JavaScript

JavaScript lets you add actual logic and behaviour. Think things like:

• Detecting player movement and reacting to it
• Creating interactive experiences
• Building custom mini-games or automation features

JavaScript is a powerful tool that gives your mods more brains. And if you’re already into web development, you’ll feel right at home.

According to a study, JavaScript has always been the most popular coding language.

Python

For starters, Python can be used in Minecraft Bedrock Edition through some handy APIS and external tools. One popular way is to use tools that hook Python scripts into the game to interact with blocks, mobs, and more. This is perfect for those who want to automate without learning a ton of Java syntax.

Have you met Minecraft: Pi Edition? It’s a special version made for the Raspberry Pi that lets you play and mod using Python. This edition is designed with young coders and educators in mind, so it’s simple, fun, and super accessible.

Lua

Lua has also a role in Minecraft modding—a lightweight, easy-to-learn scripting language that’s perfect for game development. In Minecraft, Lua shines when it comes to plugins and automation.

You’ll often find Lua being used in custom Minecraft servers. It’s great for tweaking gameplay, creating new mechanics, or building automation scripts that make your world do awesome stuff on its own.

At Software Academy, we make learning Java (and other coding languages) approachable and fun. We turn coding into an exciting adventure for all skill levels.

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Best Tools and IDEs for Minecraft Modding

Modding isn’t just about writing lines of code in a text editor. You’ll also need tools that help you organise, compile, and test your mod. Here’s a simple toolchain to help you get started:

1. IntelliJ IDEA

A fan favourite for Java modders. It’s packed with smart features like auto-complete and code refactoring.

1. MCP (Minecraft Coder Pack)

It decompiles Minecraft so you can see the code behind the game. Not always beginner-friendly, but worth knowing about.

1. Blockbench (for custom 3D models)

If your child wants to create new mobs, they’ll love Blockbench—a visual tool to design characters, items, and textures.

1. Eclipse

If you’re just getting started, Eclipse is super beginner-friendly. It’s like the comfy hoodie of Java IDEs—familiar and reliable.

1. VS Code

Lightweight and fast. Perfect for scripting languages like Python and Lua.

Here’s where the real Minecraft magic happens:

• Forge Mod Development Kit (MDK). The OG of Minecraft modding. Comes with everything you need to make Forge-compatible mods.
• Fabric Development Kit (FDK). Sleek, fast, and ideal for newer versions of Minecraft.
• ComputerCraft & OpenComputers. These Lua-based mods let you create robots, computers, and even work in-game operating systems!

Want to go from newbie to Minecraft modding ninja? Check out courses at Software Academy to learn Java, Lua, Git, and more—built just for young coders and aspiring modders!

How to Create Your First Minecraft Mod

Does your child love Minecraft? Great news—Minecraft isn’t just for gaming. In fact, Minecraft has sold over 300 million copies, making it the best-selling video game.

Here’s how to make a game:

Set Up a Modding Environment

Minecraft is built in Java, so you’ll need the Java Development Kit (JDK). Download the latest version (Java 17 or newer is usually best for modding) and follow the instructions for installing mods.

Next, choose your modding platform: Forge or Fabric. Forge is great for beginners, and tons of tutorials are available. Fabric is lightweight and fast enough for small mods.

Download the MDK (Mod Development Kit) for your chosen platform and open it using a code editor like IntelliJ IDEA or Eclipse. Your workspace is now ready to roll!

Create a Basic ‘Hello World’ Mod in Java

Let’s build something simple—a mod that adds a custom block or item. Every mod has a few essentials:

• A mod ID (your mod’s unique name)
• A main class that registers everything
• A resources folder for textures and config files

In your main mod class, you’ll register a new item. With a few lines of Java code, you can create a glowing diamond or a floating block. You’ll define its name, texture, and behaviour—then boom, your mod is born!

Use Lua or Python for Basic Scripting

Want a simpler language than Java? Try Lua or Python to script inside the game. These Minecraft mods let you build in-game computers that run Lua scripts. It’s like having a mini coding lab inside your world!

You can code a turtle (a robot) to mine, build, or even farm for you. Lua is beginner-friendly, so it’s a great place to start.

Additionally, mods like PyCraft or MCPI (Minecraft: Pi Edition) let you use Python to control Minecraft. Automate building projects, make games inside your game, or create custom tools!

Mods like PyCraft or Mineflayer allow scripting in Python. You can automate building tasks or control a bot that mines for you—how cool is that?

Want to make learning smoother and more structured? Enrol your child in a Software Academy coding class designed just for Minecraft modding. These courses are built to be fun, interactive, and easy to follow—perfect for kids who want to learn without feeling overwhelmed.

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Why Parents Are Loving Minecraft Modding Classes

Let’s be honest—Minecraft modding isn’t just a fun hobby; it’s a gateway to tech literacy. Kids learn:

• Problem-solving
• Logical thinking
• Creativity
• How to work with real code
• Confidence in tech

At Software Academy, we offer Minecraft modding camps that are perfect for young learners. Parents can pick the week that works best!

There’s no need to worry about commuting, weather, or dragging kids across town. They can learn from the comfort of home, guided by expert instructors who actually make coding fun.

Ready to Become One of the Mod Developers?

Minecraft modding isn’t just a game—it’s a gateway to the future. It teaches real-world coding, builds confidence, and fuels creativity. With the right tools and the right instructors, your child won’t just learn how to play Minecraft—they’ll learn how to build the next Minecraft world.

And there’s no better launchpad than Software Academy. Our online coding camps are structured, fun, and built for young minds. No tech experience needed. Just passion, play, and a whole lot of imagination.

Now go out there and start coding—because creepers won’t mod themselves!

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