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Obfuscator-LLVM vs Tigress

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

Obfuscator-LLVM

Free plan Linux

Obfuscator-LLVM offers several compile-time obfuscation passes across a range of LLVM languages and targets. Its maintainers describe it as an advanced prototype, with limited protection and a need for more testing before production use.

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Tigress

Free plan AndroidLinuxMac+1

Tigress offers configurable C obfuscation across a broad set of listed targets, with nonprofit use free. Account for its single-file input requirement, potential performance impact, and licensing needs before deployment.

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The facts

Obfuscator-LLVMTigress
Free planYesYes
Open sourceNot publishedNot published
Runs onLinuxAndroid, Linux, Mac, Windows
Lowest paid planFree or on requestFree or on request
Plans published12
MakerNot publishedNot published
Websitegithub.comtigress.wtf
On code obfuscation software#11 of 34#7 of 34

Obfuscator-LLVM: what it does well

  • Free and open source.
  • Includes three listed obfuscation passes.
  • Works with LLVM-supported languages.
  • Supports numerous listed compilation targets.
  • Can be integrated through Clang.

What to know first

  • Build requires CMake and make.
  • Obfuscation can slow and enlarge code.
  • Constants and buffers are not scrambled.
  • No code tamper-proofing is implemented.

Tigress: what it does well

  • One C input can yield varied outputs
  • Includes control-flow and anti-analysis transformations
  • Lists Linux, Darwin, Android, Windows, and WebAssembly targets
  • Free for nonprofit organizations

What to know first

  • Multi-file programs must be merged before use
  • Generated code can be slow on huge programs
  • Commercial deployment requires a license with unlisted pricing
  • Source is not generally open source

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