Browse free open source Obfuscators and projects for Windows below. Use the toggles on the left to filter open source Obfuscators by OS, license, language, programming language, and project status.

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  • Grafana: The open and composable observability platform Icon
    Grafana: The open and composable observability platform

    Faster answers, predictable costs, and no lock-in built by the team helping to make observability accessible to anyone.

    Grafana is the open source analytics & monitoring solution for every database.
    Learn More
  • 1
    V2Ray

    V2Ray

    V2Ray is a set of tools for building your own private network

    Project V is a set of tools to help you build your own privacy network over internet. The core of Project V, named V2Ray, is responsible for network protocols and communications. It can work alone, as well as combine with other tools.
    Downloads: 952 This Week
    Last Update:
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  • 2
    Obfuscar

    Obfuscar

    Open source obfuscation tool for .NET assemblies

    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.
    Downloads: 16 This Week
    Last Update:
    See Project
  • 3
    JS Beautifier

    JS Beautifier

    Beautifier for javascript

    This little beautifier will reformat and re-indent bookmarklets, ugly JavaScript, unpack scripts packed by Dean Edward’s popular packer, as well as partly deobfuscate scripts processed by the npm package javascript-obfuscator. All of the source code is completely free and open, available on GitHub under MIT licence, and we have a command-line version, python library and a node package as well. You may install the NPM package js-beautify. When installed globally, it provides an executable js-beautify script. As with the Python script, the beautified result is sent to stdout unless otherwise configured. You can also use js-beautify as a node library (install locally, the npm default). The beautifier can be added on your page as web library. JS Beautifier is hosted on two CDN services: cdnjs and rawgit. You can beautify javascript using JS Beautifier in your web browser, or on the command-line using node.js or python.
    Downloads: 13 This Week
    Last Update:
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  • 4
    ProGuard Java Optimizer and Obfuscator

    ProGuard Java Optimizer and Obfuscator

    Java class file shrinker, optimizer, obfuscator, and preverifier

    ProGuard has moved to Github now: https://github.com/Guardsquare/proguard ProGuard is a free Java class file shrinker, optimizer, obfuscator, and preverifier. It detects and removes unused classes, fields, methods, and attributes. It optimizes bytecode and removes unused instructions. It renames the remaining classes, fields, and methods using short meaningless names. ProGuard is useful for making code more compact and more efficient, on the desktop, on tablets, on smartphones, and on embedded devices. It also makes code more difficult to reverse engineer.
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    Downloads: 46 This Week
    Last Update:
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  • Premier Construction Software Icon
    Premier Construction Software

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  • 5
    Mixin

    Mixin

    Mixin is a trait/mixin and bytecode weaving framework for Java

    Mixin is a trait/mixin framework for Java using ASM and hooking into the runtime classloading process via a set of pluggable built-in or user-provided services. Built-in services currently support Mojang's LegacyLauncher system, though this is deprecated in favor of ModLauncher by cpw, which has greater extensibility and has support for Java 8 and later. Additional documentation for individual features and annotations can be found in the extensive Javadoc. For additional help use the channel #mixin on the Sponge Discord Server. For handling obfuscation tasks, Mixin provides an Annotation Processor which works at compile time to generate obfuscation mappings for your toolchain to apply. If using Gradle 5 or later, annotation processors are no longer automatically loaded from compile configurations and must be specified explicitly via annotationProcessor configurations.
    Downloads: 8 This Week
    Last Update:
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  • 6
    Hikari

    Hikari

    LLVM Obfuscator

    All releases prior to and including LLVM8 are signed using this PGP Key from Naville. Verifiable on his Keybase. Security is not now, and will never be based purely on Obscurity. The "Security Companies" might say so to sell more of their products. But no, binary obfuscation won't magically fix all your exploits and bugs, (If not introducing more). Designing an Obfuscator is hard, and keeping the source open definitely leaks the pattern to crackers which could potentially make the crackers' life easier if they have the right skillset. While every reasonable attempt has been made in Hikari to reduce such patterns from appearing, however, with overkill weapons like symbolic execution, binary obfuscation can still be defeated much easier, even so-called VM-based obfuscation. DOI 10.1145/2991079.2991114 explained this in great detail. I would implement a few anti-SE mechanisms in the future in an attempt to cause (even) more trouble to attackers, though.
    Downloads: 3 This Week
    Last Update:
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  • 7
    JavaGuard is a general purpose bytecode obfuscator, designed to fit effortlessly into your regular build and testing process, providing peace of mind that your valuable Java code is more secure against decompilation and other forms of reverse engineering
    Downloads: 9 This Week
    Last Update:
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  • 8
    Simplify

    Simplify

    Android virtual machine and deobfuscator

    Simplify virtually executes an app to understand its behavior and then tries to optimize the code so that it behaves identically but is easier for a human to understand. Each optimization type is simple and generic, so it doesn't matter what specific type of obfuscation is used. Provides a virtual machine sandbox for executing Dalvik methods. After executing a method, it returns a graph containing all possible register and class values for every execution path. It works even if some values are unknown, such as file and network I/O. For example, any if or switch conditional with an unknown value results in both branches being taken. Analyzes the execution graphs from smalivm and applies optimizations such as constant propagation, dead code removal, unreflection, and some peephole optimizations. These are fairly simple, but when applied together repeatedly, they'll decrypt strings, remove reflection, and greatly simplify code. It does not rename methods and classes.
    Downloads: 1 This Week
    Last Update:
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  • 9
    vHDL Obfuscator GUI

    vHDL Obfuscator GUI

    vHDL Obfuscator is an small GUI to obfuscate and reformat HDL files

    VHDL and Verilog HDL are standards languages for hardware description. Sometimes is necessary to share the source HDL file but maintaining a little level of control and protection of the intellectual property. This tool generate obfuscated code that is almost unreadable to humans, but is still readable to compilers and simulators. This tool use GHDL (https://sourceforge.net/projects/ghdl-updates/), HDLObf (https://sourceforge.net/projects/hdlobf/), Icarus Verilog (https://sourceforge.net/projects/iverilog/) and was created in Lazarus (http://www.lazarus-ide.org/)
    Downloads: 9 This Week
    Last Update:
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  • Simplify Purchasing For Your Business Icon
    Simplify Purchasing For Your Business

    Manage what you buy and how you buy it with Order.co, so you have control over your time and money spent.

    Simplify every aspect of buying for your business in Order.co. From sourcing products to scaling purchasing across locations to automating your AP and approvals workstreams, Order.co is the platform of choice for growing businesses.
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  • 10
    JODE is a java package containing a decompiler and an optimizer (aka obfuscator ;-) for java.
    Downloads: 8 This Week
    Last Update:
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  • 11

    KnProxy

    Lightweight, PHP, cURL based HTTP/HTTPS Web Proxy

    Lightweight, PHP-based Web Proxy that can utilize whatever remote connecting ablities your server has to offer. It should work out of the box. No configuration needed. For educational purposes. For a full proxy (that deals with connections), see http://sourceforge.net/projects/level5/ Note: Please post bugs/questions/feature requests on the Tracker or Forum. Also, active development for this project has transfered to GitHub at https://github.com/jabbany/knProxy .
    Downloads: 5 This Week
    Last Update:
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  • 12
    The project provides a set of Ant tasks for developing J2ME/MIDP applications based on the J2ME Wireless Toolkit. The new tasks allow for compilation, preverification, packaging, and obfuscation of a MIDlet suite as well as for making a PalmOS PRC file.
    Downloads: 5 This Week
    Last Update:
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  • 13
    HDLObf is intended to be a HDL Obfuscator and identifier name change utility. Primarily designed for Verilog/SystemVerilog support will be added for VHDL/SystemC in future.
    Downloads: 4 This Week
    Last Update:
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  • 14
    AntiLVL Reloaded

    AntiLVL Reloaded

    AntiLVL Android LVL Hack Remove License verification of Android

    AntiLVL Reloaded. Major update to AntiLVL antilvl 1.4.0.How to Remove License verification of Android Apps AntiLVL's purpose is to subvert standard license protection methods such as the Android License Verification Library (LVL), Amazon Appstore DRM and Verizon DRM. It also disables many anti-cracking and anti-tampering protection methods. Because every implementation of the LVL is potentially (and often is) quite different, it's not possible to automate patching in every case. It will not always work. However, it has been designed to get around obfuscation and to apply many variations. AntiLVL is a configurable Smali code patcher with rules defined in user-modifiable XML files stored inside the jar called fingerprints. Brief summary of how it works: Decompiles the Apk Perform regular expression matching Carrie out defined modifications Recompile, update classes.dex Resign and zipalign Remove Google Play Store Check
    Downloads: 7 This Week
    Last Update:
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  • 15
    aCob - Another C Obfuscator, is an obfuscator for C code based on clang, currently it only supports control flow flattening of input code
    Downloads: 4 This Week
    Last Update:
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  • 16
    An API and a graphical tool for inspection (viewing, searching and comparing) and manipulation (modification, obfuscation, refactoring of methods, fields, attributes and code) of classfiles for the Java platform.
    Downloads: 4 This Week
    Last Update:
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  • 17
    Simple Code/Note Pad + Obfuscator
    Downloads: 3 This Week
    Last Update:
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  • 18
    Simple .NET Obfuscator
    Downloads: 3 This Week
    Last Update:
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  • 19
    DowningGames's open source portal. It contains: Our simple ActionScript obfuscator for Windows. It obfuscates code by renaming all of the functions and variables and optionally using #define-style macro substitutions. The Flash template used as a starting point to make Momentum Master, Momentum Master II, and Myrrored.
    Downloads: 2 This Week
    Last Update:
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  • 20

    Cryptkeeper

    Cryptkeeper Secuirty tool

    In this program you will find tools like : Rawdata tool , file encryption , text encryption , program updater , program protecter , password manager , program settings , defult settings , settings viewer and the last is the file hashing. the file hashing you can use 6 hashing types for the file encryption 1 since i ran out of time for it , and the text encryption has 17 different types 12 encrypt and 5 hashing types. some uses encryption keys and some dont. there are AES , 4DES , RC2 , RC4 , MD5 , SHA1 , SHA2 , SHA3 , SHA4 , XoR , Crypt , HeX , BINARY , Rijndael 256 , Obfuscation String , RSA , BASE64. The password manager anything saved WILL NOT BE ENCRYPTED so it is smart to protect the program from others not using it.
    Downloads: 1 This Week
    Last Update:
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  • 21
    Obclipse manage the obfuscation of an ready build eclipse product. It collects the necessary information of a product, configure a third party obfuscator, obfuscate the product and fixes the textual files of the plugins by the obfuscated class names.
    Downloads: 1 This Week
    Last Update:
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  • 22
    An C# obfuscator written in C#.Though simple,but still improving.
    Downloads: 1 This Week
    Last Update:
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  • 23
    Shield.NET
    Simple .NET Obfuscator w/ ILDasm
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24
    Downloads: 0 This Week
    Last Update:
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  • 25
    Cloud Filer

    Cloud Filer

    S3 file management tool with encryption

    Cloud Filer is a graphical cloud file management tool and S3 client. Cloud Filer allows you to upload and download files to cloud storage and can be used as part of your backup strategy. Cloud Filer includes pre-internet encryption and file name obfuscation making access to your cloud data useless without the right password. Download and install using pip install cloudfiler - see also https://pypi.org/project/cloudfiler/
    Downloads: 0 This Week
    Last Update:
    See Project
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