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:
- A large Modrinth pack (180+ mods)
- A custom .mrpack I built for internal use
- 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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