Minecraft 1.21 – 1.21.11

Krypton Client

Free Minecraft Utility Mod

Krypton Client is an open-source Fabric mod packed with over 60 modules for basehunting, automation, and combat. It works on Minecraft 1.21 through 1.21.11 and runs on Windows, macOS, and Linux.

Find hidden bases with advanced stash finders and chunk scanners. Automate farms, auctions, and travel with smart macros. Gain a combat edge with crystal macros, anchor tools, and auto-totem. Every feature is free with no paywalls or premium tiers.

Official Website
Verified Source
🔓
Open Source
Fully Transparent
Free Forever
No Premium Tiers
⚡ POWERFUL MODULES

Everything You Need

Krypton Client gives you the best tools for basehunting. Automate repetitive tasks like farming, selling, and auction sniping. Spot hostile bases, players, and key blocks with detection modules. Dominate PvP with crystal, anchor, and totem macros tuned for speed and reliability.

Every module is free and constantly in-development. There are no premium tiers, subscriptions, or locked features. Browse the modules or filter by category.

⬇ GET STARTED

Download Krypton Client

For Minecraft 1.21 – 1.21.11 with Fabric

You need three files to get started: Krypton Client, Fabric API, and Fabric Language Kotlin. Download the main mod from this page and grab the other two from their official sources below. All downloads are free and open source.

MAIN MOD

Krypton Client

The main mod JAR file containing all 60+ modules. Works with Minecraft 1.21 through 1.21.11 on Windows, macOS, and Linux.

⬇ Download v1.0

Requires Fabric API and Fabric Language Kotlin to work.

Fabric Language Kotlin

Kotlin language support for Fabric mods. Required for Krypton Client to function alongside Fabric API.

↗ Get It

Modrinth

Fabric API

A core library that provides common hooks for Fabric mods. Required for Krypton Client to function.

↗ Get It

Modrinth

First time? Check out the installation guide below.

⚠ Disclaimer

This project is provided as-is with no warranty. The developers are not responsible for any bans, data loss, or other consequences from using this mod. Use at your own risk. If you experience issues, we are not liable. You have been warned. Consider using an alternate account.

🔧 SET UP

Installation Guide

Follow these five steps to get Krypton Client up and running on your machine.

The process is the same as it is for other mods. No technical knowledge is needed. If you have any issues, ask for help on the Discord server.

01

Install Fabric Loader

Head to the official Fabric website and download the Fabric Installer. Run the installer, select your Minecraft version (1.21 through 1.21.11), and click Install. The installer will create a new Fabric profile in your Minecraft launcher automatically.

02

Download Fabric API & Fabric Language Kotlin

Fabric API is a core library that provides common hooks used by Fabric mods. Fabric Language Kotlin adds language support required by Krypton Client. Download both from Modrinth or CurseForge. Make sure you pick versions that match your Minecraft version.

03

Download Krypton Client

Grab the latest Krypton Client JAR file from the download section above. The file is small and downloads in seconds. Always use this official website to ensure you get the authentic, unmodified version.

04

Move Files to Mods Folder

Place all three JAR files (Fabric API, Fabric Language Kotlin, and Krypton Client) into your Minecraft mods folder. If the mods folder does not exist, create it manually. The path depends on your operating system.

Windows %appdata%\.minecraft\mods
macOS ~/Library/Application Support/minecraft/mods
Linux ~/.minecraft/mods
05

Launch and Play

Open the Minecraft launcher and select the Fabric profile as Launch the game as usual. Once you are in-game, press Right Shift on your keyboard to open the Krypton Client menu. From there you can enable, disable, and configure any module.

💬 SUPPORT

Frequently Asked Questions

Get answers to common questions about safety, installation, features, and compatibility.

Krypton Client is open source and can be inspected by anyone. However, using any utility mod on servers may violate their rules and result in a ban. Always use a secondary account and understand the risks involved.

The source code is publicly available on GitHub. You can review every line of code. Only download from this official website to ensure you are getting the unmodified version.

Krypton Client is a community-driven project. We believe utility mods should be accessible to everyone without paywalls or premium tiers. Every feature is free forever.

Krypton Client currently supports Minecraft 1.21 through 1.21.11. Support for newer versions is planned and will be released as updates.

Follow the five-step installation guide above. Install Fabric Loader, download Fabric API and Fabric Language Kotlin, then download Krypton Client and place all three JARs in your mods folder.

Join our Discord server for support, bug reports, and feature requests. You can also open issues on our GitHub repository.

Krypton Client includes over 60 modules spanning basehunting (AdvancedStashFinder, ChunkFinder, ESP variants), automation (AutoFarm, AutoSell, macros), and combat (CrystalMacro, AnchorMacro, AutoTotem). See the full module list in the Features section above.

Krypton Client is generally compatible with most Fabric mods. However, conflicts may occur with other utility clients or mods that modify the same game systems. If you experience issues, try removing other mods one at a time to find the conflict.

Have more questions?

💬 Ask on Discord