# cfig/Android_boot_image_editor

Parsing and re-packing Android boot.img/vbmeta.img/payload.bin, supporting Android 16

Repository: https://github.com/cfig/Android_boot_image_editor
Canonical: https://ross.abutalabs.com/products/android_boot_image_editor
Language: Java
License: Apache-2.0
License Family: permissive
Topics: recovery, vbmeta, mkbootimg, unpack, mkboot, avb, vendor-boot, android-boot
Last push: 2026-08-06T07:21:40+00:00

## Health v2 (maintenance only)
Score: 66/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 96, release rhythm 8, longevity 100
- inputs: {"age_days": 3793, "days_push": 27, "days_rel": 717, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1322, forks 297 (observed 2026-08-28T04:04:22.111519+00:00)

## What it is
A Gradle-based Java tool for unpacking, editing, and repacking Android boot images such as boot.img, vendor_boot.img, recovery.img, vbmeta.img, and OTA payload.bin. It supports modern Android boot image formats up to Android 16 and produces signed repacked images.

## Use cases
- unpack android boot.img to edit kernel or ramdisk
- repack boot.img after modifying rootfs
- edit vbmeta.img for verified boot
- extract payload.bin from an OTA update
- customize vendor_boot.img on a custom ROM
- reverse engineer android recovery image

## When to choose
- you need to modify Android boot, vendor_boot, recovery, or vbmeta images
- you want a single tool handling many Android image formats including OTA payloads
- you need AVB-aware repacking with signed output

## When to avoid
- you only want to flash existing images without editing them
- you need a GUI-based ROM editing tool
- you work with non-Android disk images

## Facets
- artifact type: cli-tool
- maturity: active
- function: parser, file-system, security, developer-tools, cli
- domain: android-tools, reverse-engineering, embedded-systems, developer-tools, files
- platform: windows, cli, jvm, cross-platform
- tags: android, boot-image, vbmeta, avb, mkbootimg, rom-customization, payload-bin, ota, gradle, java, linux, macos

## Member repositories
- cfig/Android_boot_image_editor (main) score 66

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:22.111519+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:47:07.945169+00:00, confidence not recorded.
  - readme: https://github.com/cfig/Android_boot_image_editor (fetched 2026-08-28T04:04:22.111519+00:00, sha ccd511350c09)
- Data as of 2026-08-30T08:39:29.467469+00:00.