Finding a "solid" all-in-one tool for Android ROM unpacking and repacking often depends on whether you are working on a PC (Linux/Windows) or directly on an Android device using Termux. Top Recommended Tools
RomTools by Danda420: This is a highly regarded, menu-based Linux CLI tool. It uses a Project System where you place ROM files into an input folder, and it handles the heavy lifting of decompiling partitions into a dedicated workspace. It is known for being reliable for full ROM modifications.
SAT (Super Android Tool): A versatile script specifically built for Generic System Images (GSIs). It is a "solid piece" because it works on both Linux and Android devices, automating steps like reducing system image size and converting architectures (AB to A-only).
IMG-Editor-Tool: A straightforward option for Windows users. It focuses on unpacking and repacking system.img and vendor.img files. You simply place your images in the folder with the .bat file and run it to extract contents to an "editor" folder for easy modification.
Android System Unpack-Repack Tool: A specialized Linux tool for modern ROM formats. It handles system.new.dat and system.transfer.list files, making it a go-to for standard Android system extraction.
CRB Android Kitchen: While not in the primary search snippets, this is a community favorite "all-in-one" GUI tool for Windows that automates the extraction and building of full firmware packages. Quick Comparison of Workflows RomTools Linux / Android Full ROM projects & partition management. SAT Linux / Android GSI modification & architecture conversion. IMG-Editor Quick .img edits (System/Vendor). Xtrakt Converting .dat to readable text formats.
Important Note: When repacking, always be careful with file permissions. Tools like the amlogictoolkit-termux warn that changing permissions (chmod'ing) the entire system folder can prevent the ROM from booting.
Are you planning to work on a specific Android version or a particular partition type like super.img?
Danda420/RomTools: A menu-based Linux CLI tool for ... - GitHub
The Ultimate Guide to Unpacking and Repacking Android ROMs Modifying an Android ROM—whether to remove bloatware, add system-level features, or port a build to a new device—requires specialized tools to "unpack" (extract) and "repack" (rebuild) system images. This process allows you to access and edit the contents of partitions like system.img vendor.img Essential Tools for ROM Modification
Modern Android ROMs use various file systems and image formats. Depending on your platform (Windows vs. Linux) and the specific image type, you will need different "kitchen" or CLI tools. Android-Tools (General) : A foundational set of utilities for Linux ( apt-get install android-tools-adb
) used to handle basic image conversion and communication with the device. Android System Unpack-Repack Tool (Linux) : A popular GitHub-hosted tool designed specifically for extracting system.new.dat system.transfer.list IMG-Editor-Tool (Windows) : A beginner-friendly Windows batch script from JordanEJ on GitHub that uses an imgeditor.bat to automate the extraction of files into an "editor" folder for easy modification. SAT (System Unpack-Repack Tool)
: A cross-platform tool available for Linux and even directly on Android via . It can be flashed in TWRP for on-device modifications. UKA (Unpacker Kitchen for Android)
: A powerful, mobile-based "kitchen" that allows users to unpack and rebuild system.img
directly on their phones using root access and terminal emulators. How to Unpack and Repack a System Image
While each tool varies, the general workflow follows a standard sequence: 1. Unpacking the Image How To Unpack And Repack Android super.img
The Ultimate Guide to Android ROM Customization: How to Auto Unpack and Repack ROMs
In the world of Android customization, the ability to modify system software is the ultimate power user move. Whether you want to remove bloatware, change system sounds, or bake specific apps into the OS, you need a reliable way to open up firmware files. Using an auto tool to unpack and repack Android ROMs simplifies this complex process, turning what used to be a tedious command-line chore into a streamlined workflow.
This guide explores the best tools available today and the step-by-step logic of ROM manipulation. Understanding the ROM Structure
Before diving into the tools, it is essential to understand what you are "unpacking." A standard Android ROM (often distributed as a .zip, .tar, or .img file) typically contains: system.img: The core operating system files. boot.img: The kernel and ramdisk required to start the OS. auto tool unpack repack rom android
vendor.img: Proprietary drivers and HALs (Hardware Abstraction Layers).
payload.bin: A modern format used in "A/B" partition devices (like Pixels and newer OnePlus phones) that encapsulates all the above. Top Auto Tools for ROM Unpacking and Repacking 1. CRB Android Kitchen
CRB Kitchen is widely considered the gold standard for modern Android firmware modification. It features a robust Graphical User Interface (GUI) that supports almost all modern formats, including the tricky payload.bin and Samsung’s .tar.md5 files.
Best for: Samsung devices and users who prefer a visual workspace.
Key Feature: Auto-detection of sparse images and automatic resizing of partitions upon repacking. 2. SuperR's Kitchen
A legendary tool in the XDA community, SuperR's Kitchen is a Linux-based (and Windows WSL compatible) powerhouse. It is highly scriptable and supports everything from ancient Android versions to Android 14.
Best for: Developers looking to create custom ROMs from scratch.
Key Feature: Excellent handling of dm-verity and forced-encryption patches. 3. Android Image Kitchen (AIK)
Created by the developer Osm0sis, AIK is the go-to tool specifically for boot.img and recovery.img files. It is lightweight, portable, and runs via simple scripts.
Best for: Kernel developers and those making small tweaks to the ramdisk. Step-by-Step: Using an Auto Tool to Modify a ROM
While every tool has a different interface, the general "Auto" workflow follows these four stages: Step 1: Importing the Firmware
Start by loading your firmware file into the tool. If you have a payload.bin from an OxygenOS or Pixel ROM, the tool will first "dump" the individual partitions so they become editable. Step 2: Unpacking the Partition
Select the partition you wish to modify (usually system or product). The tool will decompress the image into a folder structure that looks exactly like the file system on your phone. Step 3: Customization (The "Kitchen" Phase) This is where the magic happens. You can: Debloat: Delete heavy apps from /system/app/. Root: Inject Magisk directly into the boot image.
Build.prop tweaks: Change the device name, DPI, or unlock hidden features. Step 4: Repacking and Signing
Once your changes are saved, you select the "Repack" option. The auto tool calculates the new file size, recreates the .img file, and—crucially—signs the ZIP so it can be recognized by custom recoveries like TWRP or OrangeFox. Risks and Best Practices
Modifying system files is not without its hazards. Always keep these rules in mind:
Verify Checksums: Ensure your base firmware isn't corrupted before you start.
Disable AVB: When repacking, most tools offer to disable Android Verified Boot (AVB). If you don't do this, the device may refuse to boot because the system signature has changed.
Backup Everything: Never flash a repacked ROM without having the original "fastboot" flashable firmware ready to rescue your device from a bootloop. Final Thoughts Finding a "solid" all-in-one tool for Android ROM
Using an auto tool to unpack and repack Android ROMs bridges the gap between casual fans and serious developers. Tools like CRB Kitchen and SuperR's Kitchen take the guesswork out of partition offsets and filesystem types, allowing you to focus on making your Android experience truly your own.
vbmeta with --disable-verity --disable-verification. This allows any modified partition to boot but removes tamper detection, enabling malware persistence.rollback_index can allow older, vulnerable firmware to be flashed.Auto tools have made ROM modification accessible to everyone. Whether you’re debloating a cheap tablet or building a custom ROM for a legacy device, learning to unpack and repack is your gateway. Start with CRB Kitchen or Android Image Kitchen, follow the steps above, and you’ll be flashing your own modified firmware in under 30 minutes.
Have a favorite auto tool I missed? Let me know in the comments!
Happy modding – but remember: always backup your data first. ⚡
The Ultimate Guide to Unpacking and Repacking Android ROMs in 2026
Customizing an Android ROM is the ultimate way to breathe new life into an old device or strip away unwanted bloatware from a new one. Whether you are a budding developer or a seasoned tinkerer, knowing how to safely unpack, edit, and repack system images is a foundational skill.
This guide explores the best "auto" tools available today to streamline this technical process. Why Use Automated ROM Tools?
Manually handling Android partition images (like system.img, vendor.img, or the complex super.img) involves tedious command-line work, mounting filesystems, and managing specific permissions. Automated "Kitchen" tools simplify this by providing:
One-Click Unpacking: Automatically handles various formats like .img, .dat.br, and payload.bin.
Environment Stability: Ensures that file permissions remain intact during the edit process.
Error Checking: Validates the repacked image to prevent bootloops. Top Automated Tools for ROM Editing 1. CRB Android Kitchen (Crbuilder)
CRB remains one of the most powerful and regularly updated tools for Android firmware. It is particularly known for its support of Android 14 and 15.
Key Features: Supports a massive range of formats including ext4, f2fs, and EroFS. It includes a "Debloater" for one-click app removal and a "Deodexer" for deeper system modifications.
Best For: Users who need a comprehensive, menu-based interface that handles everything from super.img unpacking to Magisk patching. 2. IMG-Editor-Tool
For those looking for a lightweight, Windows-based solution, the IMG-Editor-Tool offers a straightforward workflow using batch scripts.
Workflow: You simply place your .img files in the tool's folder, run imgeditor.bat, and the files are extracted into an "editor" folder. Once your changes are made, running the script again repacks them into a flashable image.
Best For: Quick edits to system and vendor images without setting up a full Linux environment. 3. SAT (System Archive Tool)
SAT is a specialized script designed for handling Generic System Images (GSIs). It is unique because it can run directly on Linux or even on Android devices themselves.
Key Features: It automates the reduction of system image sizes and can convert AB architecture systems to A-only for older device compatibility. Disabling Verified Boot : Most tools recommend patching
Best For: GSI developers and those who want to modify ROMs without a PC. 4. RomTools-Android
A powerful terminal-based kitchen designed for unpacking and repacking via CLI. It is ideal for users who prefer a lightweight command-line interface but want the automation of a dedicated tool.
Key Features: Handles conversion and partition utilities for erofs and ext4 filesystems. Quick Start: How to Unpack and Repack
While each tool varies, the general automated workflow follows these steps:
Preparation: Obtain your device's firmware. If it’s in a payload.bin format (common in OnePlus/Pixel), use a payload dumper to extract individual .img files first.
Unpack: Open your chosen tool (e.g., CRB Kitchen) and select the "Unpack" option. Point it to your system.img or super.img.
Modify: The tool will create a "workspace" or "editor" folder. This is where you can add/remove apps, modify build.prop for performance tweaks, or change boot animations.
Repack: Return to the tool and select "Repack." The tool will re-compress the files into a new image, usually stored in a "REPACKED" or "OUTPUT" directory.
Flash: Use Fastboot or a custom recovery like TWRP to flash your modified image back to your device. Important Safety Tips
Always Backup: Never modify a ROM without a full Nandroid backup of your current working state.
Check File Systems: Modern Android 13+ devices often use EroFS. Ensure your tool supports this (like CRB Kitchen) before attempting to repack, or the device won't boot.
WSL for Windows: If using Linux-based tools on Windows, setting up Windows Subsystem for Linux (WSL) is highly recommended for proper file permission handling.
ravindu644/Android_Image_Tools: CRB Kitchen, but ... - GitHub
Searching for "paper" usually refers to a technical guide or a "white paper," but in the Android ROM modding community, this is most commonly associated with specific automated scripts and developer tools. If you are looking for an
to unpack and repack Android ROMs, here are the most reputable options and their workflows: Top Unpack/Repack Tools Android System Unpack-Repack Tool (Linux) : A CLI tool designed to handle system.new.dat system.transfer.list files common in flashable ZIP ROMs. SAT (Simple Unpack Tool) : An automated script specifically built for Generic System Images (GSIs)
. It can convert architectures (e.g., AB to A-only) and reduce image sizes. CRB Kitchen : Highly recommended by the
This tool is one of several utilities (like SuperR's Kitchen, CRB, or Android Image Kitchen) designed for modifying firmware files. This review focuses on the most common version found on forums like 4PDA, XDA, and GSMArena.
Best for: Beginners with generic Snapdragon/Exynos ROMs
This lightweight portable tool (under 5 MB) is the definition of "auto." You get a simple interface with three buttons:
system.img or vendor.img to a writable folder..dat formats.It supports Android 14 (Upside Down Cake) with the new extf2s format.
| Task | Manual (Expert) | Auto Tool (CRB/AIK) |
| :--- | :--- | :--- |
| Unpack boot.img | 5 commands, 2 mins | Drag & drop, 5 secs |
| Convert system.dat.br to folder | 4 tools (brotli, sdat2img, etc.) | One click, 30 secs |
| Repack with changes | 12 commands, risk of error | One click, 1 min |
| Total time for full ROM | 45–60 minutes | 3–5 minutes |