Decompilation rarely works perfectly on the first attempt. Executables are often or obfuscated to protect their contents, and you'll need additional tools to prepare them for decompilation.

These web-based tools allow you to upload an executable and view its source code (or pseudo-code) without downloading software.

is JetBrains' free .NET decompiler, built on the same decompiler engine used in ReSharper. The main idea behind dotPeek is to make high-quality decompiling available to everyone in the .NET community, completely free of charge.

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Use Ghidra . Developed by the National Security Agency (NSA) and released as free, open-source software, Ghidra includes a world-class native decompiler that rivals commercial software costing thousands of dollars. Summary: Choosing the Right Method Best Used For Privacy Level Setup Required Online Decompilers Quick look, .NET binaries, learning, non-sensitive files. Low (Files sent to cloud) None (Browser only) Web Hex Editors Extracting text strings, URLs, checking file headers. High (Runs client-side) None (Browser only) Desktop Decompilers