The basic steps for installing Minecraft mods

Installing a mod in Minecraft means adding a file to a specific folder on your computer, then launching the game through a mod manager instead of the regular launcher. The exact steps depend on which mod manager you use — Forge and Fabric are the two most common — and whether you are modding the Java Edition (the version most people mod) or Bedrock Edition (the console and mobile version, which has fewer mods and a different process).

The safest approach is to pick one mod manager, install it correctly the first time, and stick with it. Mixing mod managers or installing mods directly into your game folder without a manager is how people end up with corrupted saves and games that will not start.

Key Takeaways

  • Forge and Fabric are the two main mod managers for Java Edition; you install one, then place mods into its designated folder.
  • Before installing any mod, check that its version number matches your Minecraft version — a mod for 1.19 will not work in 1.20.
  • Always back up your world folder before installing mods, because a bad mod can corrupt your save file.
  • read mods only from CurseForge or Modrinth, the two sites where mod creators post their official files.
  • If your game crashes after installing a mod, remove it and check the crash log to see which mod caused the problem.

Installing Forge on Java Edition

Forge is the older and more widely used mod manager. To install it, go to the official Forge website (files.minecraftforge.net), find the version that matches your Minecraft version, and read the installer file. Run the installer, choose "Install client," and let it finish — it will create a new Forge profile in your Minecraft launcher automatically.

Once Forge is installed, open your Minecraft launcher, select the Forge profile from the dropdown menu at the bottom left, and click Play. The game will launch with Forge active. You will see "Forge" in the bottom left corner of the main menu if the installation worked.

After that, close the game and navigate to your .minecraft folder (on Windows, press Windows key + R, type %appdata%, then open the .minecraft folder; on Mac, open Finder, press Command + Shift + G, and type ~/Library/process Support/minecraft). Inside, you will see a folder called mods. Any mod file you place in this folder will load the next time you launch the game through Forge.

Installing Fabric on Java Edition

Fabric is newer than Forge and generally causes fewer conflicts between mods. read the Fabric installer from fabricmc.net, run it, select your Minecraft version, and click Install. Like Forge, it creates its own launcher profile automatically.

Launch the game through the Fabric profile to confirm it works — you should see "Fabric" in the bottom left of the main menu. Then close the game, navigate to your .minecraft folder, and place mod files in the mods folder. Fabric will load them on the next launch.

One important difference: Fabric mods often require a library mod called Fabric API to work. If a mod description says it needs Fabric API, read that file from CurseForge or Modrinth and place it in your mods folder alongside the mod itself.

Finding and downloading mods safely

Only read mods from CurseForge (curseforge.com) or Modrinth (modrinth.com). These are the two official repositories where mod creators post their work. Both sites show you the mod creator's name, the version it works with, the date it was last updated, and user comments about whether it works or causes crashes.

When you find a mod you want, check three things before downloading: the Minecraft version (it must match yours exactly), the mod manager it requires (Forge or Fabric), and the upload date (if a mod has not been updated in over a year, it may not work with current versions). read the .jar file — that is the only file type you need.

Never read mods from random websites, YouTube links, or Discord servers. Those sources often contain malware or outdated versions that will crash your game. If a mod is real, it is on CurseForge or Modrinth.

Backing up your world before you mod

Before you install your first mod, make a copy of your world folder. Open your .minecraft folder, find the saves folder, right-click the world you want to keep safe, and copy it to a different location on your computer — your Desktop or a USB drive both work.

If a mod corrupts your save or your game will not start, you can delete the broken version and restore your backup. This takes five minutes and saves you from losing hours of progress. After you have installed mods and played for a while without crashes, you can delete the backup.

What to do if a mod crashes your game

If the game crashes after you install a mod, the first step is to remove the mod file from your mods folder and try launching again. If the game starts, that mod was the problem.

To find out why it crashed, look at the crash log. On Windows, go to your .minecraft folder, open the logs folder, and open the most recent file (it will be named something like 2024-01-15-1.log). Search for the word "error" — the text around it usually tells you what went wrong. Common reasons include: the mod version does not match your Minecraft version, a required library mod is missing, or the mod is straightforward broken in that version.

Post the crash log in the mod's comment section on CurseForge or Modrinth, or search the comments to see if someone else had the same problem. Mod creators often respond to crash reports and can tell you how to fix it.

Bedrock Edition modding (console and mobile)

Bedrock Edition — the version on Nintendo Switch, PlayStation, Xbox, and mobile — does not use Forge or Fabric. Instead, mods are called add-ons and are installed through the game's settings menu. Go to Settings, select Resource Packs or Behavior Packs depending on what you want to add, and choose from the available options.

Bedrock add-ons are much more limited than Java mods. You cannot change game mechanics as deeply, and most add-ons are made by Minecraft or approved creators. If you want the full modding experience, Java Edition is the version to use.

Frequently Asked Questions

Can I use Forge and Fabric mods at the same time?

No. You can only run one mod manager per game launch. You have to choose Forge or Fabric and stick with it. Some mods work with both, but you cannot mix mods designed for Forge with mods designed for Fabric in the same game.

What if I install a mod and my game will not start?

Remove the mod file from your mods folder and try launching again. If the game starts, that mod was the problem. Check the crash log in your logs folder to see what went wrong, then look at the mod's page on CurseForge or Modrinth to see if other people reported the same issue.

Do I need to uninstall mods to play on a server?

It depends on the server. Some servers allow any mods, some allow only client-side mods (mods that only change what you see), and some allow none. If you join a server and it kicks you out, remove your mods and try again. The server owner's rules will tell you what is allowed.

Will mods slow down my game?

Yes, usually. More mods mean more processing power your computer has to use. If your game gets choppy, try removing mods one at a time to find which one is causing the slowdown, or lower your graphics settings to compensate.

Can I update Minecraft while I have mods installed?

You can, but your mods will stop working until the mod creators update them for the new version. Most popular mods get updated within a few weeks of a new Minecraft release. Check CurseForge or Modrinth to see if your mods have been updated before you update the game.