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RetDec vs uncompyle6

Both stand on reverse engineering tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

RetDec

Free plan LinuxMacSelf-hosted+1

RetDec provides broad format and architecture support, with decompilation output and analysis tools available at no charge. Its limited maintenance and installation requirements are important considerations for ongoing use.

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uncompyle6

Free plan LinuxMacSelf-hosted+1

Choose uncompyle6 if you need a free command-line option for translating supported Python bytecode or examining fragments in a debugger. Look elsewhere for obfuscated code, Cython, MicroPython, Py2EXE files, or if Python 3.7 and 3.8 support is central to your work.

Visit uncompyle6

The facts

RetDecuncompyle6
Free planYesYes
Open sourceNot publishedNot published
Runs onLinux, Mac, Self-hosted, WindowsLinux, Mac, Self-hosted, Windows
Lowest paid planFree or on requestFree or on request
Plans published11
MakerNot publishedNot published
Websitegithub.comgithub.com
On reverse engineering tools#30 of 73#34 of 73

RetDec: what it does well

  • Free software under the MIT license.
  • Supports multiple executable formats and architectures.
  • Uses DWARF and PDB debugging information.
  • Offers pre-built, source, and Docker deployment options.
  • Generates call graphs and control-flow graphs.

What to know first

  • Installation needs about 5 to 6 GB of disk space.
  • FreeBSD support is experimental.
  • Project maintenance is very limited.
  • Nightly builds may be unreliable and contain regressions.

uncompyle6: what it does well

  • Translates Python bytecode into equivalent source code.
  • Handles bytecode fragments and source information near offsets.
  • Includes syntax verification for matching bytecode versions.
  • Free and GPL-3.0 licensed.
  • Listed for Linux, macOS, Windows, and self-hosted use.

What to know first

  • Does not handle obfuscated code, Cython, or MicroPython.
  • Cannot directly decompile Py2EXE executables.
  • Control-flow handling can lead to erroneous decompilations.
  • Python 3.7 and 3.8 support is generally better in decompile3.

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