Arsc Decompiler May 2026

apktool d app.apk This produces a res/ folder with decoded values/strings.xml and a public.xml file.

| Chunk Type | Purpose | |------------|---------| | RES_TABLE_TYPE | Header; contains package ID (usually 0x7f for app, 0x01 for Android framework). | | RES_STRING_POOL_TYPE | A pool of all UTF-16 strings used in resources (keys and values). | | RES_TABLE_PACKAGE_TYPE | Defines a package (e.g., your app’s package name). | | RES_TABLE_TYPE_SPEC | Specifies the types of resources (layout, drawable, string, etc.). | | RES_TABLE_TYPE_ENTRY | Actual key-value pairs: resource ID to value. | | RES_TABLE_TYPE_CONFIG | Configuration variation (e.g., values-en-rUS-land ). | arsc decompiler

def parse_string_pool(self): chunk_type = self.read_uint32() # should be 0x0001 chunk_size = self.read_uint32() string_count = self.read_uint32() # Simplified: skip style count, flags, etc. self.pos += 20 offsets = [] for _ in range(string_count): offsets.append(self.read_uint32()) for off in offsets: # Strings are UTF-16, but we'll read until null str_pos = self.pos + off end = str_pos while self.data[end:end+2] != b'\x00\x00': end += 2 raw = self.data[str_pos:end].decode('utf-16le') self.string_pool.append(raw) apktool d app

def parse_package(self): # Simplified: skip to string pool self.pos += 4 + 4 + 4 + 256 # skip id, name, type strings offset self.parse_string_pool() # Now you can parse entry values using string_pool indices print("Found strings:", self.string_pool[:5]) with open("resources.arsc", "rb") as f: parser = ARSCParser(f.read()) parser.parse() | | RES_TABLE_PACKAGE_TYPE | Defines a package (e

Can be slow on huge APKs (500MB+). 2. ARSCLib (Java/Kotlin Library) A dedicated library for parsing resources.arsc programmatically.

import struct class ARSCParser: def (self, data): self.data = data self.pos = 0 self.string_pool = []