# worawit/blutter

Flutter Mobile Application Reverse Engineering Tool

Repository: https://github.com/worawit/blutter
Canonical: https://ross.abutalabs.com/products/blutter
Language: C++
License: MIT
License Family: permissive
Last push: 2026-08-18T15:33:58+00:00

## Health v2 (maintenance only)
Score: 72/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 35, longevity 79
- inputs: {"age_days": 1107, "days_push": 15, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2627, forks 362 (observed 2026-08-28T04:07:05.305505+00:00)

## What it is
Blutter is a reverse engineering tool for Flutter mobile applications that compiles the Dart AOT runtime to extract symbols and objects from libapp.so binaries. It outputs annotated assembly, object pool dumps, and a Frida script template for analyzed Android arm64 apps.

## Use cases
- reverse engineer a flutter android app
- extract symbols from libapp.so
- analyze dart aot compiled apk
- generate frida script for flutter app
- dump dart object pool from mobile app
- decompile flutter application

## When to choose
- analyzing a Flutter Android app's arm64 libapp.so
- you need Dart symbols and object dumps for reverse engineering
- you want a Frida script template for a Flutter target

## When to avoid
- targeting iOS or non-arm64 Android binaries
- the app uses a very old Dart version
- you need a GUI-based disassembler

## Facets
- artifact type: cli-tool
- maturity: active
- function: reverse-engineering, parser, developer-tools
- domain: reverse-engineering, mobile-development, security
- platform: windows, cli, cpp, python
- tags: flutter, dart, android, apk-analysis, frida, aot-compiler, disassembly, linux, macos

## Member repositories
- worawit/blutter (main) score 72

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:05.305505+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 2026-08-30T02:19:45.530779+00:00, confidence not recorded.
  - readme: https://github.com/worawit/blutter (fetched 2026-08-28T04:07:05.305505+00:00, sha 7f9dded38333)
- Data as of 2026-08-30T08:39:29.467469+00:00.