Open Source Minecraft Mods
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Minecraft Mods
View 15811 business solutionsBrowse free open source Minecraft Mods and projects for Windows and Mac below. Use the toggles on the left to filter open source Minecraft Mods by OS, license, language, programming language, and project status.
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1
MCA Selector
A tool to select chunks from Minecraft worlds for deletion or export
An external tool to export or delete selected chunks and regions from a world save of Minecraft Java Edition. -
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Amulet Map Editor
A new Minecraft world editor and converter
The new age Minecraft world editor and converter that supports every version since Java 1.12 and Bedrock 1.7. Amulet is a Minecraft world editor built from the ground up with the lessons learnt from previous editors in mind. The program works natively with the block state format introduced in 1.13 which enables editing of all world formats. Amulet is built on top of a world converter that converts all world data into a custom superset format. This means that all worlds can be modified in the same way rather than having custom logic for each world format. Amulet comes with a built-in world converter that can be used to convert any world Amulet can open into any other world Amulet can open. -
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Hello Minecraft! Launcher
A Minecraft Launcher which is multi-functional, cross-platform
HMCL is a cross-platform Minecraft launcher that supports Mod Management, Game Customizing, ModLoader Installing (Forge, NeoForge, Fabric, Quilt, LiteLoader, and OptiFine), Modpack Creating, UI Customization, and more. HMCL has amazing cross-platform capabilities. It can not only run on different operating systems such as Windows, Linux, and macOS, but also supports multiple CPU architectures such as x86, ARM, MIPS, and LoongArch. You can easily play Minecraft on different platforms through HMCL. -
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UltimMC Launcher
Offline Minecraft launcher
UltimMC Launcher is a lightweight open-source Minecraft launcher designed to manage multiple game installations, modpacks, and configuration environments from a single interface. The launcher allows players to create separate instances of Minecraft, each with its own mods, saves, resource packs, and settings, making it easier to maintain different game setups for testing, modded gameplay, or older versions of the game. Built as a fork of the MultiMC launcher project, UltimMC focuses on flexibility and instance management while remaining portable and relatively lightweight. Users can easily install mod loaders such as Forge or Fabric and configure different versions of Java or memory settings for each instance to optimize performance. The launcher also supports modpack platforms and allows players to switch between versions of Minecraft without affecting other installations. -
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Prism Launcher
Custom launcher for Minecraft to easily manage installations
An Open Source Minecraft launcher with the ability to manage multiple instances, accounts, and mods. Focused on user freedom and free redistributability. Install and launch modpacks easily, while keeping them clean. No longer do you need to manually install them, and easily update mod packs, Prism Launcher can do these tasks for you, without installing tons of separate launchers. Prism Launcher is able to download & update individual mods from outside of modpacks using Modrinth and CurseForge. Each Minecraft instance has its own folder, with separate mods, resource packs and other things. You don't need an embedded web browser as a game launcher. Prism Launcher uses the Qt toolkit, which requires little system resources. Prism Launcher also lets you customize the menu and supports custom themes. -
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NBTExplorer
A graphical NBT editor for all Minecraft NBT data sources
NBTExplorer is an open source graphical NBT (Named Binary Tag) data editor for Minecraft. It supports reading and writing in a number of formats including Standard NBT files (e.g. level.dat), Schematic files, Uncompressed NBT files (e.g. idcounts.dat), Minecraft region files and more. -
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mcpelauncher
The main repository for the Linux and Mac OS Bedrock edition Minecraft
A launcher that allows running Minecraft Bedrock Edition on Linux systems with various optimizations. -
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MultiMC
Launcher for Minecraft that allows you to easily manage installations
MultiMC is an alternative launcher for Minecraft. It allows you to have multiple, cleanly separated instances of Minecraft (each with their own mods, resource packs, saves, etc) and helps you manage them and their associated options with a simple and powerful interface. -
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BedrockLaunch
A fully functional Minecraft Bedrock Edition launcher
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Sodium
A Minecraft mod designed to improve frame rates
Sodium is a powerful rendering engine and optimization mod for the Minecraft client which improves frame rates and reduces micro-stutter while fixing many graphical issues in Minecraft. A Minecraft mod designed to improve frame rates and reduce micro-stutter. -
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Cubiomes Viewer
An efficient graphical Minecraft seed finder and map viewer
Cubiomes Viewer provides a graphical interface for the efficient and flexible seed-finding utilities provided by cubiomes and a map viewer for the Minecraft biomes and structure generation. The tool is designed for high performance and supports Minecraft Java Edition main releases up to 1.21. The tool features a map viewer that outlines the biomes of the Overworld, Nether and End dimensions, with a wide zoom range and with toggles for each supported structure type. The active game version and seed can be changed on the fly while a matching seeds list stores a working buffer of seeds for examination. The integrated seed finder is highly customizable, utilizing a hierarchical condition system that allows the user to look for features that are relative to one another. Conditions can be based on a variety of criteria, including structure placement, world spawn point, and requirements for the biomes of an area. -
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Amidst
Advanced Minecraft Interface and Data/Structure Tracking
Amidst or Advanced Minecraft Interface and Data/Structure Tracking is a tool to display an overview of a Minecraft world, without actually creating it. It can render an overview of a world from a given seed and Minecraft version, save an image of the map, display biome information and numerous other structures, and more. -
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MinecraftConsoles
A certain block game
MinecraftConsoles is an open-source project that revives and modernizes the legacy console edition of Minecraft by rebuilding it into a multi-platform, extensible codebase. It is based on the original Legacy Console Edition source and introduces numerous fixes and improvements to enhance stability, performance, and usability on modern systems. The project aims to serve as a foundation for further development such as modding, backports, and experimentation with features that were previously locked to console environments. It supports running on desktop platforms with keyboard and mouse input, making it more accessible beyond its original console-focused design. The repository also includes a dedicated server implementation, enabling multiplayer experiences and LAN-based connectivity. Developers can build and modify the project using modern toolchains, making it a flexible environment for both preservation and innovation. -
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CatServer
A high performance and high compatibility 1.12.2/1.16.5/1.18.2 version
CatServer is an open-source hybrid Minecraft server implementation that combines support for both Forge mods and Bukkit-style plugins within the same server environment. Traditional Minecraft server software typically supports either mod loaders such as Forge or plugin systems like Bukkit and Spigot, but CatServer aims to bridge this gap by enabling both ecosystems to coexist. This hybrid approach allows administrators to run modded gameplay features while also using administrative plugins designed for plugin-based servers. The project modifies the server architecture to integrate Forge modding capabilities alongside plugin compatibility layers. As a result, server operators can build more complex environments that include both gameplay modifications and server management tools. CatServer is particularly useful for communities that want the flexibility of modded Minecraft while retaining access to established plugin-based server administration tools. -
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VulkanMod
Vulkan renderer mod for Minecraft
This is a fabric mod that introduces a brand new Vulkan-based voxel rendering engine to Minecraft Java in order to both replace the default OpenGL renderer and bring performance improvements. -
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Arnis
Generate any location from the real world in Minecraft
Arnis is a free and open-source desktop application that generates playable Minecraft worlds from real-world geographic data. The project processes large datasets from sources such as OpenStreetMap and elevation data to recreate terrain, buildings, roads, and landmarks with impressive spatial accuracy inside Minecraft. By converting geographic information into Minecraft blocks and structures, Arnis allows users to explore real cities, neighborhoods, and landscapes in a virtual environment that mirrors the real world. The tool handles large-scale geospatial processing and transforms raw mapping data into a format compatible with Minecraft world generation. Users can generate entire regions, including detailed urban layouts and natural terrain, making it useful for education, visualization, or creative world-building projects. -
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Arclight
A Bukkit(1.19/1.20) server implementation in modding environment
A Bukkit server implementation on common mod loaders. -
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Fresh Animations Minecraft Resource Pack
High-quality mob and player animations for Minecraft.
Fresh Animations is a free, open-source Minecraft resource pack that enhances the game’s visuals by introducing smooth and expressive animations for mobs and players. Designed for both vanilla and modded Minecraft, it brings characters to life with realistic movement, idle behavior, and personality — all without altering gameplay. -
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x-minecraft-launcher
An Open Source Minecraft Launcher with Modern UX
x-minecraft-launcher is an open-source Minecraft launcher designed to provide a modern user interface and powerful tools for managing modded Minecraft environments. The application allows players to install and manage multiple instances of Minecraft, each with its own configuration, mods, resource packs, and runtime settings. It emphasizes efficient disk usage by sharing resources between instances rather than duplicating files, which helps reduce storage consumption when working with many modpacks. The launcher integrates directly with major mod distribution ecosystems and supports downloading mods, modpacks, and dependencies from various repositories. Built with modern web and desktop technologies, it focuses on performance, modular architecture, and cross-platform compatibility across Windows, Linux, and macOS systems. The project also supports different authentication systems and allows advanced configuration of Java runtime parameters and game settings. -
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Liquid Bounce
A free mixin-based injection hacked client for Minecraft
LiquidBounce is a free and open-source mixin-based injection hacked client using the Fabric API for Minecraft. LiquidBounce is a hacked client (also known as a cheat) for Minecraft and designed to give you a significant advantage over other players. Unlike many of its competitors, LiquidBounce is completely free, open source and compatible with Fabric. LiquidBounce's JavaScript API allows you to take care of that yourself. With just a few lines of code, you can develop your own modules and share them with the community. LiquidBounce allows you to customize the HUD according to your personal needs. So if you don't like the standard design, you can easily customize it to your exact needs. We believe quality does not have to be come with a price tag and therefore offer LiquidBounce for free. No hidden costs, no premium features. Just go ahead and download our client. -
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Minecraft Bedrock Server
Containerized Minecraft Bedrock Dedicated Server
Containerized Minecraft Bedrock Dedicated Server with selectable version. -
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Lithium (for Fabric)
A Fabric mod designed to improve the general performance of Minecraft
A general-purpose optimization mod for Minecraft, improving server and client performance. -
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MCP-Reborn
MCP-Reborn is an MCP (Mod Coder Pack) for Minecraft
MCP-Reborn is an MCP (Mod Coder Pack) for Minecraft for making modded clients for Minecraft and researching its code. It is based on MCPConfig and ForgeGradle by MinecraftForge Team. -
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Minecraft Development for IntelliJ
Plugin for IntelliJ IDEA that gives special support for Minecraft mods
Experience first class support for all of the major Java Minecraft development platforms, including Bukkit and derivatives such as Spigot and Paper, Sponge, Forge, Fabric, MCP, Mixins, LiteLoader, BungeeCord, and Waterfall. It also provides in-depth support for Access Transformer and NBT files, and more. Because of this, you can install the plugin through IntelliJ's internal plugin browser. Navigate to File -> Settings -> Plugins and click the Browse Repositories... button at the bottom of the window. In the search box, simply search for Minecraft. You can install it from there and restart IntelliJ to activate the plugin. -
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OriLauncher
Fast, user-friendly cross-platform custom launcher for Minecraft
OriLauncher is a free and open source custom launcher for the popular game Minecraft designed to streamline the process of launching the game with a modern, user-friendly interface. Built using web and desktop technologies like Svelte, Electron, and Vite, it aims to provide a fast and responsive experience for players across multiple platforms including Windows, macOS, and Linux. The launcher enables users to switch quickly between different Minecraft environments (such as Vanilla, Forge, or Fabric) with just one click, eliminating manual setup steps. It also offers support for managing multiple user accounts, remembering both Microsoft and offline profiles to make logging in simpler and more fluid. Players have control over technical settings like RAM allocation and Java version selection directly within the launcher, allowing them to optimize performance for their system.
