# pxb1988/dex2jar

Tools to work with android .dex and java .class files

Repository: https://github.com/pxb1988/dex2jar
Canonical: https://ross.abutalabs.com/products/dex2jar
Language: Java
License: Apache-2.0
License Family: permissive
Last push: 2024-07-21T06:08:25+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4188, "days_push": 773, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 13135, forks 2186 (observed 2026-08-28T04:11:02.289992+00:00)

## What it is
dex2jar is a set of Java-based command-line tools for working with Android .dex and Java .class files. It converts Dalvik executables (e.g., from APKs) into Java class files (JARs) and can disassemble/assemble dex to/from smali.

## Use cases
- convert an apk's dex to a jar for decompilation
- disassemble dex files to smali
- reassemble smali back into a dex file
- analyze android app bytecode
- read and write dex files programmatically
- decrypt obfuscated strings in android apps

## When to choose
- you need to convert Android dex bytecode to Java class files for static analysis
- you want to disassemble or reassemble dex via smali syntax
- you're doing Android reverse engineering or malware analysis

## When to avoid
- you need a full decompiler producing readable Java source (pair it with a decompiler like CFR or Fernflower)
- you need to build or run Android apps rather than analyze them
- you need active feature development - the project is largely in maintenance mode

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: reverse-engineering, parser, compiler, developer-tools
- domain: android-tools, reverse-engineering, security, developer-tools
- platform: cli, jvm, cross-platform
- tags: dex, apk, smali, decompilation, dalvik, java-bytecode

## Member repositories
- pxb1988/dex2jar (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:11:02.289992+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 2026-08-29T17:13:30.319338+00:00, confidence not recorded.
  - readme: https://github.com/pxb1988/dex2jar (fetched 2026-08-28T04:11:02.289992+00:00, sha 2492bee552b1)
- Data as of 2026-08-30T08:39:29.467469+00:00.