Browse free open source C# Decompilers and projects below. Use the toggles on the left to filter open source C# Decompilers by OS, license, language, programming language, and project status.

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  • 1
    ILSpy

    ILSpy

    .NET Decompiler with support for PDB generation, ReadyToRun, Metadata

    ILSpy is the open-source .NET assembly browser and decompiler. Visual Studio 2022 ships with decompilation support for F12 enabled by default (using our engine v7.1). In Visual Studio 2019, you have to manually enable F12 support. Go to Tools / Options / Text Editor / C# / Advanced and check Enable navigation to decompiled source. C# for Visual Studio Code ships with decompilation support as well. To enable, activate the setting "Enable Decompilation Support. ILSpy is distributed under the MIT License. Please see the About doc for details, as well as third-party notices for included open-source libraries. Visual Studio 16.3 and later include a version of the .NET (Core) SDK that is managed by the Visual Studio installer - once you update, it may get upgraded too. Please note that ILSpy is only compatible with the .NET 6.0 SDK and Visual Studio will refuse to load some projects in the solution.
    5.0 out of 5 stars 1 Review
    Downloads: 513 This Week
    Last Update:
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  • 2
    AssetRipper

    AssetRipper

    GUI application to analyze game files

    AssetRipper is an open-source application for analyzing and extracting assets from games developed with the Unity engine. It helps developers inspect compiled game files and recover resources into formats compatible with Unity development workflows. The software can process assets such as textures, models, audio files, and other game resources. It assists in identifying unused dependencies, broken asset references, and code that remains in compiled builds. AssetRipper supports a broad range of Unity versions, although compatibility and extraction accuracy can vary. Its graphical interface makes complex asset structures easier to explore and understand. The application is particularly useful for debugging, recovering project resources, studying game architecture, and investigating Unity build contents.
    Downloads: 42 This Week
    Last Update:
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  • 3
    Decompiler

    Decompiler

    Binary executable decompiler

    Reko decompiler reads program binaries, decompiles them, infers data types, and emits structured C source code. Designed with a pluggable architecture, it currently has: - support for 68k, ARM, MIPS, PowerPC, Risc-V, Sparc, x86, Z80 processors and many more - support for EXE, Elf, AmigaOS Hunk executable formats and many more - support for MS-DOS, Win32, U*ix, AmigaOS , C64, ZX-81 Reko decompiler comes with a GUI and a command-line interface. Visit https://github.com/uxmal/reko for the GIT repository.
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    3.8 out of 5 stars 4 Reviews
    Downloads: 85 This Week
    Last Update:
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  • 4
    AvaloniaILSpy

    AvaloniaILSpy

    Avalonia-based .NET Decompiler (port of ILSpy)

    This is a cross-platform version of ILSpy built with Avalonia. Search for types/methods/properties (substring). Hyperlink-based type/method/property navigation. Extensible via MEF Extensibility (Check out TestPlugin folder). Note: This is not compatible with ILSpy Plugins. Grab artifacts from the latest master CI build. This includes Linux, Mac and Windows.
    Downloads: 7 This Week
    Last Update:
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  • 5
    reko

    reko

    Reko is a binary decompiler

    Reko (Swedish: "decent, obliging") is a decompiler for machine code binaries. This project is freely available under the GNU General Public License. The project consists of front ends, core decompiler engine, and back ends to help it achieve its goals. A command line, a Windows GUI, and a ASP.NET front end exist at the time of writing. The decompiler engine receives inputs from the front ends in the form of either individual executable files or decompiler project files. Reko project files contain additional information about a binary file, helpful to the decompilation process or for formatting the output. The decompiler engine then proceeds to analyze the input binary. Reko has the ambition of supporting decompilation of various processor architectures and executable file formats with minimal user intervention. For a complete list, see the supported binaries page.
    Downloads: 6 This Week
    Last Update:
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  • 6
    HydraDragonAntivirus

    HydraDragonAntivirus

    Open Source Antivirus/XDR for Windows operating system

    Dynamic and static analysis with Real Time Malware Analysis with Antivirus for Windows, including open-source XDR (3 EDR projects), ClamAV, YARA-X, machine learning AI, behavioral analysis, Unpacker, Deobfuscator, Decompiler, website signatures, Ghidra, Suricata, Sigma, Kernel, Hypervisior based protection and much more than you can imagine.
    Downloads: 12 This Week
    Last Update:
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  • 7

    Android App Decompiler

    Decompile an Android APK

    Android App Decompiler is a useful Tool to unextract and decompiles Android APK. When you runed the Decompiler than created an folder with all Files from then APK and the dex (dalvik executable format) being converted to an jar file. You must only now use an Java Decompiler like jd-gui and you have all files of the App.
    Downloads: 7 This Week
    Last Update:
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  • 8
    .Net Assembly Viewer/Disassembler/decompiler is a .net assembly viewer, disassembler and decompiler written in C#.
    Downloads: 0 This Week
    Last Update:
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  • 9

    Winform White/Gray Style

    Windows Winfroms clean and simple

    the winforms in this project is to make the windows winform's look better smother and clean, small borders and simple caption menu NOTE: i will release the source once i reace a more stable version and have cleand the code YOU ARE ALLOWED TO USE A Decompiler until then.. (EG: ILSpy)
    Downloads: 0 This Week
    Last Update:
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  • 10
    Decompiler for 1C Enterprise 7.7
    5.0 out of 5 stars 1 Review
    Downloads: 0 This Week
    Last Update:
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