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What is stands for next-generation reverse engineering. It is pronounced revenge (/ɹɪˈvɛndʒ/). Its key features are:

  • Decompilation: features a full-fledged decompiler emitting C code. The C code we emit is designed to be valid and recompilable without significant warnings.
  • VSCode-based UI: we provide a UI based on VSCode hiding away all the complexity of internals and wrapping everything in a nice, usable UI.
  • Interactivity: is structured to automatically infer as much information as possible from the binary, but lets the user customize it by simply editing a YAML file, aka the model. Every change to the model automatically invalidates certain things previously produced by, which will be automatically recomputed when needed.
    We offer Python and TypeScript wrappers to interact with
  • Focus on data structures: the most innovative feature of is its focus on data structures. Thanks to Data Layout Analysis, we can automatically infer data structures by analyzing how a pointer is used by one or more functions.
  • Compatibility: can import from IDA's .idb/.i64, Linux/macOS debug information (DWARF) and Windows debug information (PDB).

In terms of design choices, its distinctive characteristics are:

  • Openness: all the decompilation pipeline is (going to be) open source. Certain analyses, such as Data Layout Analysis will be commercially available.
  • Based on QEMU: it employs QEMU to lift assembly code to an architecture-independent representation. Note that we never emulate any code, we simply use QEMU as a lifter.
  • Based on LLVM: all of our analyses are LLVM passes. This enables to use existing, powerful analyses and optimizations and ensures scalability.
  • Client/server Architecture: scripting and automation takes place in your favorite environment by connecting to a GraphQL API over the network or locally, possibly through our wrappers.