The basic process: download, place files, launch

Installing a Minecraft mod means downloading a file (usually a .jar or .zip), placing it in your Minecraft folder, and launching the game through a mod manager. The exact steps depend on which mod manager you use — Forge and Fabric are the two most common — and whether you're playing on Java Edition (Windows, Mac, Linux) or Bedrock Edition (Windows 10/11, console, mobile).

Java Edition mods are far more common and easier to install. Bedrock Edition has fewer mods available and a different installation process. This guide covers Java Edition, which is what most players mean when they say "Minecraft mods."

Key Takeaways

  • Most Java Edition mods require Forge or Fabric, a mod manager you install first before adding individual mods.
  • You download a mod file, place it in your mods folder, then launch Minecraft through Forge or Fabric instead of the normal launcher.
  • Mods are version-specific — a mod built for Minecraft 1.20 will not work on 1.19, so check the mod's version before downloading.
  • CurseForge and Modrinth are the two largest mod hosting sites and are safer than random download links because they scan files for malware.

Install Forge or Fabric first

Before you can use any mod, you need a mod manager. Forge and Fabric are the two main options. Forge is older and supports more mods overall. Fabric is newer, faster, and better for performance mods. Most players start with Forge because more mods are built for it, but either works.

To install Forge: go to files.minecraftforge.net, click the Minecraft version you want (like 1.20.1), download the installer, run it, and choose "Install client." Forge will modify your Minecraft launcher automatically. To install Fabric: go to fabricmc.net, download the installer for your version, run it, and click "Install." Both take about two minutes.

After installation, open your Minecraft launcher. You should see a new profile for Forge or Fabric. Select it and click Play. The game will launch once, then close. This is normal — it's creating the mods folder. Do not launch the game again yet.

Download mods from CurseForge or Modrinth

The safest place to download mods is CurseForge.com or Modrinth.com. Both sites host thousands of mods, scan files for malware, and show you which Minecraft versions each mod supports. Avoid downloading mods from random websites or YouTube links — those are common sources of malware.

On CurseForge: click "Mods" in the left menu, search for a mod you want, click it, and look for the version you need. Click "Files" at the top, find your Minecraft version in the list, and click the download button. The file will save to your Downloads folder. On Modrinth: search for a mod, click it, scroll to "Versions," find your version, and click the download icon.

Before downloading, check two things: the mod's Minecraft version (it must match the version you installed Forge or Fabric for), and whether it requires other mods to work. Many mods list dependencies — other mods they need to function. If a mod requires another mod, download that one first.

Place mod files in the mods folder

Once you have downloaded a mod file, you need to put it in your Minecraft mods folder. The location depends on your operating system.

On Windows: Press Windows key + R, type %appdata%, and press Enter. Open the .minecraft folder, then open the mods folder inside it. If there is no mods folder, create one by right-clicking in the .minecraft folder, selecting "New," then "Folder," and naming it "mods."

On Mac: Open Finder, press Command + Shift + G, paste ~/Library/Application Support/minecraft, and press Enter. Open the mods folder. If it does not exist, create it.

On Linux: Open your file manager and navigate to ~/.minecraft/mods. Create the mods folder if it does not exist.

Drag your downloaded mod file (.jar or .zip) into the mods folder. Do not unzip it — leave it as a .jar or .zip file. If you downloaded multiple mods, put all of them in the same mods folder.

Launch the game and check for conflicts

Open your Minecraft launcher, make sure the Forge or Fabric profile is selected, and click Play. The game will load mods — this takes longer than normal the first time. Watch the loading screen for errors. If the game crashes, a crash report will appear.

If the game launches successfully, go to the mods menu (from the title screen, click "Mods") to confirm your mods loaded. You should see them listed with their names and versions. If a mod is not there, it either did not download correctly, is the wrong version, or is missing a dependency.

If the game crashes on launch, the most common causes are: the mod is the wrong version for your Minecraft installation, the mod requires another mod you did not download, or two mods conflict with each other. Remove the most recently added mod from the mods folder and try launching again. If the game starts, that mod was the problem.

Bedrock Edition mods (a different process)

Bedrock Edition (Windows 10/11, Xbox, PlayStation, Nintendo Switch, mobile) does not use Forge or Fabric. Instead, mods are called "add-ons" and are installed differently. Most Bedrock add-ons come as .mcaddon files, which you download and double-click to import into Minecraft.

The Bedrock modding community is smaller than Java Edition, and fewer mods are available. CurseForge and Modrinth both host Bedrock add-ons — filter by "Bedrock Edition" when searching. Installation is simpler (download and double-click), but you have fewer options overall.

Frequently Asked Questions

Can I use mods from different mod managers together?

No. Forge mods and Fabric mods are not compatible with each other. You must choose one mod manager and use only mods built for it. Some mods exist for both, but they are separate downloads. Check the mod's page to see which version you need.

What if a mod I want is not available for my Minecraft version?

Mod developers update their mods at different speeds. If a mod is only available for version 1.19 and you are on 1.20, you have two choices: downgrade your Minecraft version to 1.19, or find a different mod that does the same thing on 1.20. Check CurseForge or Modrinth to see which versions are supported.

Will mods slow down my game?

Most mods have some performance impact, but it varies widely. Cosmetic mods (skins, particles, sounds) are usually fast. Mods that add new creatures, blocks, or world generation are slower. Fabric is generally faster than Forge. If your game lags, try removing mods one at a time to find which one is causing it.

Is it safe to download mods from CurseForge and Modrinth?

Both sites scan uploaded files for malware before they appear publicly, making them much safer than random download links. However, no system is perfect — read mod reviews and check the download count. A mod with thousands of downloads and positive reviews is safer than a brand-new mod with no reviews.

Can I use mods on a Minecraft server?

Client-side mods (cosmetic changes, HUD improvements) work on any server. Server-side mods (new blocks, creatures, gameplay changes) only work if the server has those mods installed too. Ask your server owner which mods are supported before downloading.