Browse free open source Java Minecraft Mods and projects below. Use the toggles on the left to filter open source Java Minecraft Mods by OS, license, language, programming language, and project status.

  • Try Google Cloud Risk-Free With $300 in Credit Icon
    Try Google Cloud Risk-Free With $300 in Credit

    No hidden charges. No surprise bills. Cancel anytime.

    Use your credit across every product. Compute, storage, AI, analytics. When it runs out, 20+ products stay free. You only pay when you choose to.
    Start Free
  • Full-stack observability with actually useful AI | Grafana Cloud Icon
    Full-stack observability with actually useful AI | Grafana Cloud

    Our generous forever free tier includes the full platform, including the AI Assistant, for 3 users with 10k metrics, 50GB logs, and 50GB traces.

    Built on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
    Create free account
  • 1
    Find releases and source code repositories from Files and Git.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 2
    Minecraft Name Checker

    Minecraft Name Checker

    Minecraft Name Availability Checker

    A Minecraft tool that checks to see if an account name is available or currently taken. The program is written entirely in Java and exported to an executable. A text file (one name per line) can also be read and checked. An output file "available.txt" will be created with usable names in the same directory as the selected read file.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 3
    JNBT is a Java NBT (Named Binary Tag) library. It provides easy to use NBTInputStream and NBTOutputStream classes to read and write NBT files. NBT is the level format used by the Minecraft game.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 4

    Minecraft last login decoder/recovery

    Decodes the login credentials stored by the minecraft launcher

    This simple application written in java decodes the login credentials stored in the file named "lastlogin" in your minecraft folder. DEPRECATED AFTER MC 1.6
    Downloads: 3 This Week
    Last Update:
    See Project
  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
    Try Retool free
  • 5
    Minecraft-Installer

    Minecraft-Installer

    Install mods for minecraft easily

    Install your mods for Minecraft easily with the new Minecraft-installer program.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 6
    Minecraft Application Backup Utility

    Minecraft Application Backup Utility

    Backup & restore Minecraft worlds with one click.

    Minecraft Application Backup Utility or formally known as Mabu, is a backup & restore tool for Minecraft which can be used on either Windows, Linux or OS X systems. With a simple and user-friendly design, you can create backups and restore from previous backups effortlessly.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 7
    Wireless Redstone is a Minecraft modification that allows you to transmit and receive redstone signals without wires.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 8

    Blaze Machines

    Blaze Machines is a OS emulator modification for Minecraft

    Downloads: 1 This Week
    Last Update:
    See Project
  • 9
    JayMontana36 Pre-Built Minecraft Servers

    JayMontana36 Pre-Built Minecraft Servers

    Free Minecraft Servers tweaked for a lag-free experience!

    Free Minecraft Servers that come with a few of the most popular used plugins pre-installed by default, all preconfigured for a lag-free experience! - Optimized for low-end systems (beast-like on medium to high end systems). - Low RAM usage/requirements/consumption. - CrossCompatible between many different versions of Minecraft. - One Server Supports all 1.4.x, 1.5.x, 1.6.x, 1.7.x, 1.8.x, 1.9.x, 1.10.x, 1.11.x, 1.12, 1.12.2 clients all at the same time. - Fully Supports Linux, Windows, and Mac OS X. - Officially supports the MineOS Web UI created and owned by Will Dizon (this project however, is not affiliated with the MineOS Web UI nor William Dizon).
    Downloads: 1 This Week
    Last Update:
    See Project
  • Go From AI Idea to AI App Fast Icon
    Go From AI Idea to AI App Fast

    One platform to build, fine-tune, and deploy ML models. No MLOps team required.

    Access Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
    Try Free
  • 10
    LandsDiscordBot

    LandsDiscordBot

    Adds Discord Functionality to Lands.

    This plugin adds Discord functionality to the spigot plugin Lands. It allows land owners to create a channel for their land so they can chat from Discord with their land members online at the Minecraft server. Also you can view top lands in Discord, receive land and war notifications and more to come.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 11
    A small save synchronization and backup utility for Minecraft. Currently Windows-only.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 12
    Wonderful

    Wonderful

    A PaperMC plugin that has many configurable features

    Downloads: 1 This Week
    Last Update:
    See Project
  • 13

    block2brick

    Convert Minecraft world to LEGO Digital Designer format

    block2brick converts a part of Minecraft world to a LEGO Digital Designer file. Why? Because they share the feeling of creating big things from small parts. And because Minecraft just looks good as LEGO.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 14
    Accessibility Plus Extended

    Accessibility Plus Extended

    A minecraft java mod that adds more accessibility options.

    A minecraft java mod that adds more accessibility options like ore detector, fall detector, read blocks and entities. Join the discord server to get updates, request feature or report bugs. This project is an extension of Accessibility Plus by LuisSanchez-Dev. New Keybindings:- B = Open settings menu Y = Lock onto nearby mob entity Alt + Y = Disable locking New Commands findlava = Find the closest lava source block and narrate it's position relative to the player or play a sound at the source block. Note: this feature is currently experimental and has some bugs findwater = Find the closest water source block and narrate it's position relative to the player or play a sound at the source block. Note: this feature is currently experimental and has some bugs getxp = Narrate the current xp of the player getfullscreen = Tell if minecraft is in fullscreen or not
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    Information Machines: Two blocks that can break the blocks that are at the sides, according to the position that has been previously placed. The advanced blockbreaker is more fast and have silk touch. Life: Add cherry tree, cherries and some recipes. So when I go Mojang Update Minecraft updating it, and if I can not, at least, I posted the code. The code is 100% GPL, you can use it for whatever you can think of. The source code it's on Github - https://github.com/alca259/alca Any help to solve bugs, it's welcome. Installation For install, drop the jar in mods folder. Forge is required. Recipes in Wiki
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    Applied Energistics 2

    Applied Energistics 2

    A Minecraft Mod about Matter and Energy

    Applied Energistics 2 (AE2) is a comprehensive mod for Minecraft that introduces a unique approach to in-game inventory management. Its theme is centered around the concept of converting matter into energy and vice versa, to store and transport your items and fluids instantaneously. AE2 revolutionizes storage in Minecraft. The mod adds a network-based digital storage system, where items and blocks are stored as energy in a digital form within a network of connected devices. This allows for compact storage solutions and easy access to your items. Another significant feature of AE2 is its automatic crafting capabilities. Players can set up patterns and recipes which the system can automatically craft on demand. This greatly streamlines bulk and complex crafting processes, saving time and effort. AE2 adds a whole new level of strategy to your Minecraft builds with its networking and channel system.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    Bukkit RPG plugin for Arvina minecraft world.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18

    BestockTweaks

    A mod for minecraft

    As an avid Minecraft player, there are many times I felt both the game and available mods had some simple features missing, this mod attempts to rectify that with as much compatibility as possible.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    BuildCraft

    BuildCraft

    BuildCraft mod for Minecraft

    BuildCraft is a mod for Minecraft. BuildCraft itself is licensed under the MMPLv1 or MPLv2 if you need the specifics, but generally, you can. By default, many simple (primarily worldgen/decorative) blocks are supported out of the box, such as the kind of blocks added by Chisel 2 or Ztones. However, for many other mods, special support is required to allow for rotation and remove the chance of duplication bugs appearing. BuildCraft Compat is a BuildCraft addon designed to add cross-mod compatibility with other mods. BuildCraft is in the process of moving back to the MJ power system. However, due to BuildCraft being in alpha no other mods support it (or should support it, as its still making breaking changes to the API.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    A mod for craftbukkit (Minecraft server moded) that allow player to become Vampire able to flight and stronger than player, but will burn at the Sun.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    A bukkit plugin that is open source. Use of trade via commands for minecraft server.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Das Plugin PVPPlugin für den Minecraft Server Mod ist ein Plugin, dass die Tode und Kills bei einem Arena TDM(Team Deathmatch) Kampf zählt.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Cartocraft is a simple top-down, orthogonal Minecraft map renderer with ambient occlusion and lighting.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24

    Charlotte's Utilities

    Charlotte's Utilities mod for Minecraft Forge made by Sharshar

    Charlotte's Utilities is my first adventure into modding Minecraft. I wanted to have some extra utilities and things for my server that I couldn't find in other mods, or if I could I was able to think of a different way that I would prefer to implement them. At its core, this mod pack is just a collection of utilities that I feel improve the game experience. Everything is fully configurable in the config file so you can change, enable, or disable whatever you feel is best for you! The mod has quickly developed into one that's aimed primarily at the builders of the Minecraft community, and I plan to expand on that idea going into the future. My goal is to provide new, unique, and easy ways to allow players to construct whatever comes to their mind. I take feedback very seriously and if you have a good idea I won't hesitate to implement it. Development of Charlotte's Utilities is made possible by Full Effect Hosting
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25

    Cinema for Bukkit

    Animates Blocks.

    ever wanted to make a pixelart movie in minecraft? well now you can!
    Downloads: 0 This Week
    Last Update:
    See Project
MongoDB Logo MongoDB