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MRPack to ZIP – A Clean, Functional Tool to Unpack Minecraft Modpacks

If you’ve spent any time managing modded Minecraft in the past couple of years, you’ve probably run into the .mrpack format. Originally introduced by Modrinth, .mrpack is a modern packaging format that aims to streamline how modpacks are distributed and loaded.

But .mrpack also comes with a catch: it isn’t directly usable by many vanilla tools or third-party launchers. In some cases, you might just want to unpack a .mrpack, explore its contents, or convert it to a .zip to work with legacy systems or custom launch setups.

That’s where MRPack to ZIP comes in — a minimalistic, no-login-required web tool that does exactly what it claims.

I gave it a try. Here’s how it went.


⚙️ What MRPack to ZIP Does

At its core, MRPack to ZIP is a web-based converter. You upload a .mrpack file, and it outputs a .zip archive containing:

  • All mods listed in the .mrpack manifest (index.toml)
  • Folder structures preserved
  • Optionally normalized file names

It also downloads the referenced mod files directly from their sources (usually Modrinth/CDN links). That means you don’t just get the shell of the modpack—you get a fully usable local version with all assets.


🧪 Hands-On Test

I tested it with three .mrpack files from various sources, including:

  1. A large Modrinth pack (180+ mods)
  2. A custom .mrpack I built for internal use
  3. A minimal test modpack with just a few dependencies

✅ Upload Experience

Uploading was smooth and fast. The drag-and-drop interface works, and there’s also a file picker. The site doesn’t ask for login, which is a big plus. It immediately starts parsing the .mrpack file and shows a “ready to convert” interface.

⚙️ Conversion Options

Three main settings:

  • Maintain mod folder structure (enabled by default)
  • Download mod files (enabled by default)
  • Normalize filenames (optional — useful if dealing with problematic characters or duplicates)

You can also specify a custom name for the output .zip file, which is helpful for organization.

🔄 Conversion Time

Even for larger modpacks, the conversion process was surprisingly fast. A 200MB .mrpack took less than 30 seconds (download speeds will vary depending on your connection and CDN availability).

📦 Output

The .zip file was clean and contained:

  • All downloaded mod .jar files
  • Preserved folder structure (e.g., mods/, resourcepacks/)
  • A copy of the manifest/index file

Everything was plug-and-play compatible with legacy launchers like MultiMC and Prism Launcher.


🎯 Who Is This For?

You’ll find MRPack to ZIP useful if you fall into any of these categories:

  • Launcher tinkerers: You want to install .mrpack modpacks manually or on non-standard launchers.
  • Modpack developers: You need to quickly test .mrpack outputs, or share converted files with users not using Modrinth.
  • Server admins: You need .zip versions to deploy on a headless server or manage configs outside of launcher UIs.
  • Content reviewers: You want to peek into modpacks without installing them.

🧩 Compatibility Notes

  • Works in Chrome, Firefox, and Safari.
  • No sign-in, no cookies popups.
  • Supports all .mrpack versions that follow the Modrinth spec.
  • No support for CurseForge .zip packs (understandably — different format entirely).

🔐 Privacy & Trust

A rare point worth noting: all file processing happens client-side or via direct CDN fetching. Based on my testing and review of requests, no .mrpack or .zip data is uploaded to third-party servers beyond the mods being fetched from their URLs.

There’s no login, ad banners, or tracking behavior, which is refreshing for a utility site.


🧭 Feature Wishlist

While the tool is solid and does what it promises, here are a few features that would be nice-to-have in the future:

  • Drag multiple .mrpack files for batch conversion
  • Mod version resolution warnings (e.g., broken links or missing files)
  • Command-line wrapper for offline or automated use

Of course, the tool’s simplicity is part of the appeal — so keeping it clean is also a valid design choice.


🏁 Verdict

MRPack to ZIP is one of those quiet tools that doesn’t make a lot of noise, but solves a real problem with minimal friction. If you’re working with .mrpack files — whether as a developer, power user, or server admin — it’s absolutely worth bookmarking.

👉 Try it here: https://mrpacktozip.com

No fuss, no fluff — just a fast and useful Minecraft utility.

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