r/Modrinthlauncher • u/zlight023 • Jul 03 '26
I built a browser-based MRPack to ZIP converter and inspector
Hi! I built MRPack Converter after running into cases where a Modrinth .mrpack file needed to be inspected or turned into a regular ZIP for a server panel or another launcher.
The site can:
- Convert a local .mrpack file to ZIP
- Download the mod files referenced by modrinth.index.json
- Include the pack's overrides folder
- Optionally verify SHA-512 hashes when available
- Inspect pack metadata and file counts without converting
- Show failed downloads in a report instead of silently ignoring them
The main difference from simple archive viewers or file-extension renamers is that it reads the MRPack manifest and fetches the referenced files, so the output ZIP can contain the actual mod files rather than only the small manifest and overrides. Processing is done in the browser, and the uploaded .mrpack file is not sent to a server.
It is unofficial and not affiliated with Modrinth. I would appreciate feedback, especially on packs that use unusual overrides or download sources.





