Open Source C# Obfuscators

Obfuscar is an open-source .NET obfuscator released under MIT license. It provides basic obfuscation features that help secure secrets in a .NET assembly. An obfuscation tool designed for most .NET developers. Hide everything private, while keep everything public. You can achieve such simply via default settings. Hide class/method/property/event names that you don't want to expose. This is irreversible. String contents can be compressed so that end users won't easily learn them. However, this is reversible by certain tools.

MaddCrypt is a simple application that focuses on protection, encryption, and obfuscation for dotNET application. Designed with high-end features, MaddCrypt has a wide range of uses, from educational penetration testing to the protection of sensitive personal and legal data. The app is designed to meet a variety of security needs with an elegant look using the Guna Framework.

A tool that will obfuscate any .NET assembly along with its satellites (EXEs and DLLs) by disassembling it to IL code, performing obfuscation techniques, and assembling it back to an executable. Both a CLI (command-line interface) and GUI are available.