- About mrpack2zip
A free, browser-based converter for the Minecraft modding community.
- What this tool does
mrpack2zip converts Modrinth's .mrpack modpacks into plain, ready-to-use .zip archives. Everything runs directly in your browser — no file is ever uploaded to a server. Your modpack stays on your device throughout the entire conversion.
- Why we built this
The Minecraft modding ecosystem uses several competing modpack formats. Modrinth uses .mrpack, while many launchers and manual installs expect a plain .zip. That mismatch creates friction and can stop players from installing a pack their launcher doesn't understand. mrpack2zip removes that friction: the conversion takes seconds, requires no technical knowledge, and works from any device with a browser.
- How it works
A .mrpack file is itself a ZIP archive containing a modrinth.index.json manifest that lists every mod by download URL, plus an overrides/ folder of config files — rather than bundling the mod JARs directly. This keeps pack files small but means each mod still has to be downloaded before the pack can be used.
The converter reads that manifest, downloads each mod from its source, copies the overrides, and packages everything into a single self-contained .zip. All of this happens in your browser using the File API and the JSZip library. A few mods hosted on sites like GitHub can't be fetched directly because of browser CORS restrictions — for those, the converter opens their download pages so you can drop the files into the ZIP's mods folder manually.
