blacktop/ipsw offline-ipa-preview-20261110

Offline IPA decryption preview

on GitHub

This preview adds offline IPA decryption for Apple Silicon Macs running macOS 26 or later, Linux arm64, and Linux x86-64.

Export local authorization on a Mac signed in to the App Store:

./ipsw macho export-auth

Then decrypt an existing licensed IPA whose license matches that authorization:

./ipsw macho decrypt-ipa ./LicensedApp.ipa --output ./decrypted-app

The result is decrypted-app/repacked.ipa. These commands do not log in or download apps. See the offline IPA guide for authorization-file permissions, Linux use, and troubleshooting.