r2flutter/doc/obfuscate.md

Flutter Obfuscation Maps

Flutter AOT builds produced with --obfuscate can also emit a rename map with --save-obfuscation-map=<file>. The file format is a JSON array of alternating original and obfuscated names:

["OriginalName", "a", "OtherSymbol", "b"]

r2flutter

Use -m with the dump action you need:

bin/r2flutter -m path/to/map.json -f test/bins/ios/Runner.app
bin/r2flutter -m path/to/map.json -i test/bins/android/first

When a map is provided, r2flutter deobfuscates recovered function names, instruction-table names, class names, field names, and method owner/name pairs. String extraction is left untouched so -z and -zz continue to report what is physically stored in the binary.