Can I import a .jar into CurseForge?

Not with the Import option. Import is for modpacks that were exported from the CurseForge app. A single mod JAR goes in the profile's mods folder.

Can CurseForge open an .mrpack file?

No. Convert the pack to a CurseForge .zip first, or play it in a launcher that reads .mrpack files. Convert a Modpack Between Modrinth and CurseForge covers both directions.

How do I get the mods out of a CurseForge .zip?

A modpack .zip mostly lists project IDs, so the mod JARs aren't inside it. Only files in overrides/mods/ are real JARs. Install the pack to download the rest, then open the profile's mods folder.

Do I need to unzip a mod before adding it?

No. The loader reads the .jar as it is. ---

How to Add a JAR File to CurseForge (Modrinth Mods Too)

Add a mod JAR to a CurseForge profile through its mods folder, put Modrinth mods into CurseForge, and fix a manually added mod that doesn't load.

How to Add a JAR File to CurseForge (Modrinth Mods Too)

Step 1: Check the JAR Before You Add It

Step 2: Pick a Profile

Step 3: Copy the JAR Into the Profile's mods Folder

Putting Modrinth Mods Into CurseForge

Scan JARs From Outside CurseForge

If the Mod Doesn't Load

FAQ

Summary