Opaquer is a next-generation .NET obfuscator and the official successor to Skater .NET Obfuscator. It protects .NET assemblies from reverse engineering, decompilation, and IP theft. Key features include name mangling, string encryption (with an option for a separate native DLL), lightweight control flow obfuscation, and anti-tampering. Editions: Basic (free), Pro (CLI automation, $189.99), and Enterprise (team deployment, offline builds, high-intensity control flow, $489.99)

Features

  • Identifier Renaming (Name Mangling): Renames classes, methods, fields, and other metadata to unreadable tokens, removing meaningful structure from the compiled assembly
  • String Encryption: Encrypts sensitive string literals at compile time and decrypts them only at runtime; strings can be embedded in the assembly or moved to a separate native DLL
  • Control Flow Obfuscation: Restructures program logic into complex, non-linear execution paths, making decompiled code difficult to understand while preserving behavior
  • Anti-Tampering & Anti-Debugging: Detects unauthorized modification attempts and disrupts debugging tools used by attackers
  • Resource Protection: Protects embedded resources from unauthorized access
  • Command-Line Interface: Available in the Pro edition for automation and integration into CI/CD pipelines

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