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

  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
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  • Zenflow- The AI Workflow Engine for Software Devs Icon
    Zenflow- The AI Workflow Engine for Software Devs

    Parallel agents. Multi-agent orchestration. Specs that turn into shipped code. Zenflow automates planning, coding, testing, and verification.

    Zenflow is the AI workflow engine built for real teams. Parallel agents plan, code, test, and verify in one workflow. With spec-driven development and deep context, Zenflow turns requirements into production-ready output so teams ship faster and stay in flow.
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  • 1

    MinGW - Minimalist GNU for Windows

    A native Windows port of the GNU Compiler Collection (GCC)

    MinGW: A native Windows port of the GNU Compiler Collection (GCC), with freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All of MinGW's software will execute on the 64bit Windows platforms.
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    Downloads: 2,776,353 This Week
    Last Update:
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  • 2
    Bytecode Viewer

    Bytecode Viewer

    A reverse engineering suite (decompiler, editor, debugger and more)

    Some of Bytecode Viewer features are that it provides Java Decompiling with Six different decompilers (DJ-GUI/Core, Procyon, CFR, Fernflower, Krakatau, and JADX-Core). Bytecode Decompiling with CFIDE. Android APK integrated with Dex2Jar. Securely launch Java applications and insert hooks via EZ-Injection. Scan for malicious code with the Malicious Code Scanner plugin. Export as DEX, Jar, Class, Zip or Java Source File. Open Android APKs, Android DEX, Java Class Files and Java Jars. (WAR & JSP Support!). Extensively configurable, over 100+ settings! Works seamlessly with all Operating Systems. Integrates BCV into Windows by installing it, it'll associate all .class, .dex and .apk to open with BCV. You can view Jar & APK Resources with ease by APKTool.jar integration. It is 100% free and open sourced under GPL v3 CopyLeft.
    Downloads: 47 This Week
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  • 3
    WinXP, Vista, Win7, linux, OpenSolaris native port of the BSD PSPSDK (ps2dev.org), with freely distributable import libraries and header files (DevPaks) for building cross compiled homebrew Sony PSP (PlayStation Portable) applications.
    Downloads: 53 This Week
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  • 4
    (Diver is in the process of being moved to GitHub. Please find us at https://github.com/thechiselgroup/Diver. Support requests & messages sent here may never be seen.) Dynamic Interactive Views For Reverse Engineering. Div/er is a set of Eclipse Plugins that aid developers in understanding software. It uses dynamic analysis and reverse engineering to offer views and filters that aid comprehension and discovery.
    Downloads: 47 This Week
    Last Update:
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  • Rent Manager Software Icon
    Rent Manager Software

    Landlords, multi-family homes, manufactured home communities, single family homes, associations, commercial properties and mixed portfolios.

    Rent Manager is award-winning property management software built for residential, commercial, and short-term-stay portfolios of any size. The program’s fully customizable features include a double-entry accounting system, maintenance management/scheduling, marketing integration, mobile applications, more than 450 insightful reports, and an API that integrates with the best PropTech providers on the market.
    Learn More
  • 5
    Eclipse Portable [4.6–4.26]

    Eclipse Portable [4.6–4.26]

    Portable version of the multifunctional development platform Eclipse.

    With this portable version of Eclipse, you can develop software directly from your removable mass storage device, even without admin rights. To get started, please visit the Eclipse Portable wiki: https://sourceforge.net/p/eclipse-neon-portable/wiki GitHub: https://github.com/Berny23/eclipse-portable Thank you for over 180,000 Downloads! Please note: A few months ago, I completely switched to Linux (now Arch btw). So, I'll be no longer active creating portable apps for Windows.
    Downloads: 40 This Week
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  • 6
    GT

    GT

    Debugging tool for bug hunting and performance tuning on smartphones

    GT (Great Tit) is a portable debugging tool for bug hunting and performance tuning on smartphones anytime and anywhere just as listening music with Walkman. GT can act as the Integrated Debug Environment by directly running on smartphones. With the help of GT, you can carry out the following jobs only using one smartphone: quick performance tests (CPU, memory, flow, power, fluency tests etc.), viewing developer log and crash log, capturing the network packets, debugging the APP internal parameters and code time-consuming statistics. If the functions GT provides cannot meet your requirements, you can also develop your own GT plugins with special functions to help solving more complicated debugging issues. The IOS GT is a Framework package, which must be compiled into your APPs before being used. It can be supported by both iPhone and iPad APPs.
    Downloads: 1 This Week
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  • 7
    Robust

    Robust

    Android HotFix solution with high compatibility and high stability

    Robust is an Android HotFix solution with high compatibility and high stability. Robust can fix bugs immediately without a reboot. Robust is an Android HotFix solution with high compatibility and high stability. Robust can fix bugs immediately without publishing apk. Support fixing at method level,including static methods. Support add classes and methods. Support ProGuard,including inline methods or changing methods' signature. AutoPatch will generate patch for Robust automatically. You should modify inner classes' private constructors to public modifier. Classes added in patch should be static nested classes or non-inner classes,and all fields and methods in added class should be public.
    Downloads: 1 This Week
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  • 8
    Sonic Agent

    Sonic Agent

    Agent of Sonic cloud real machine platform

    Agent of Sonic Cloud Real Machine Platform. Sonic is a platform that integrates remote control debugging and automated testing of mobile devices, and strives to create a better use experience for global developers and test engineers.
    Downloads: 1 This Week
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  • 9
    Java Console is a Java Command promt tool intended for Software Developers, System Administrators and as a plug in to other applications. It is a very powerful console client just run it and have fun
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    Downloads: 16 This Week
    Last Update:
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  • Comet Backup - Fast, Secure Backup Software for MSPs Icon
    Comet Backup - Fast, Secure Backup Software for MSPs

    Fast, Secure Backup Software for Businesses and IT Providers

    Comet is a flexible backup platform, giving you total control over your backup environment and storage destinations.
    Learn More
  • 10
    Debugger for Bash version 3(Bourne again shell). Plugin for Eclipse. Will only work with shell script editor ShellEd.
    Downloads: 3 This Week
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  • 11
    HL7 Inspector

    HL7 Inspector

    HL7 Inspector is a tool for managing HL7 messages

    The HL7 Inspector project has moved to Bitbucket. https://bitbucket.org/crambow/hl7inspector All new releases can be found there. The web-based version can still be found at www.hl7inspector.com
    Downloads: 4 This Week
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  • 12
    The Tool Box

    The Tool Box

    Tools for the payments type!

    Version 1.1.5 - Added: Added the ability to edit the EMV panel - You can change which tags show, and what order they are in - Added: Tag 9F10 (Issuer Application Data) to which also includes CVR (a subtag of 9F10) - Added: Menu link to the homepage (sourceforge) - Fixed: 9F07/AUC had the wrong tag details - Fixed: File>Close now saves notes and config updates before exiting - Fixed: Tag 95/TVR title had a spelling mistake - Fixed: Homepage wasn't populating EMV page names - Fixed: EMV menu would prompt to update even if there was nothing changed - Changed: Removed unused classes, old stuff that isn't used - Changed: Reverted home page image - Changed: Removed some test prints and refactored EMV classes - Changed: No longer prompts to restart after EMV menu change, just changes it - Changed: EMV Navigation Panel button generation (for the dynamic buttons) thetoolbox2013@gmail.com
    Downloads: 6 This Week
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  • 13
    BT-Sim is a BlueTooth simulator on a HCI level. The project alows to develop and test BT applications without using real BT hardware. It works in particular with PalmSource's Palm OS Simulator.
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    Downloads: 10 This Week
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  • 14

    Jlint

    Static analyzer for Java bytecode

    Jlint will check your Java code and find bugs, inconsistencies and synchronization problems by doing data flow analysis on the code and building the lock graph. Jlint is fast, easy to learn, and requires no changes in the class files to be checked.
    Downloads: 8 This Week
    Last Update:
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  • 15
    GNUDE is a complete suite of GNU C, C++, Fortran, and Java Cross Compilers, and the GDB CPU Simulator and Debugger for embedded microprocessor applications development. Targets development for ARM7, ARM9, and XScale applications.
    Downloads: 4 This Week
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  • 16
    Jar Browser is a Java development utility for searching and browsing the contents of a set of jar and zip files. It supports searching for classes across multiple jars, plus a variety of other features. Great for solving CLASSPATH issues.
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    Downloads: 4 This Week
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  • 17
    ObjectScript is a general purpose object-oriented programming language. It is designed to be simple to learn, easy to use, yet still powerful, combining the convenience of an interactive interpreter with many of the features of Java
    Downloads: 6 This Week
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  • 18
    The m6800 Simulator is a teaching tool to introduce students to microprocessors. It is based on a cut-down version of the M6800 chip, and a reduced instruction set. The simulator assembles and simulates execution of the users code on a GUI
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    Downloads: 5 This Week
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  • 19

    ADBTool

    Capturing screenshots, screen video, logcat, extract string ids

    ADBTool with user friendly UI is very helpful for QA Engineers to test and validate Android mobile apps faster. It reduces the test execution time by 40-50 percent. Installation: In order to use this tool you should install ANDROID SDK. And set Android SDK path in Environment variables as ANDROID_HOME. How to Run : Windows: By just double clicking on it. MAC or Linux: java -jar adbtool.jar Capturing and editing screenshot is one of the painful work for QA engineers. QA Engineers can now perform all these actions using this single tool without depending on other editing tools or software. Logcat is the most used thing by QA Engineers and developers to debug the issue. This tool will capture logcat and displays log with colour coding in UI with options to view and save.. Android uiautomator provide only strings not their ids whereas ADBTool can extract complete strings from selected app. Apart from above ADBTool has many other features, use it to know other features.
    Downloads: 4 This Week
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  • 20
    NetTool is a developer tool for monitoring and manipulating application-level network messages, particularly useful for debugging web applications and web services. There are two components to NetTool: the HTTP Client, and the TCP Tunnel.
    Downloads: 3 This Week
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  • 21
    Jabberwocky is a development environment for Lisp programs. It includes a Lisp aware editor, a source level debugger and a way to interact with Lisp processes.
    Downloads: 3 This Week
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  • 22
    JDBC-XML Driver for Mysql 4.0. Allow efficient definition ,storage and retrieval of answers to forms. This JDBC-XML driver is an extension to the mysql JDBC Driver adding XML capabilities.
    Downloads: 2 This Week
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  • 23
    Java IDE, project support, build, debugger, grep.
    Downloads: 2 This Week
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  • 24
    Java Modeling Language (JML)
    This sourceforge site for the project is now DEPRECATED and not updated. All current work and new releases are on github: https://github.com/OpenJML/OpenJML. The Java Modeling Language (JML) is a behavioral interface specification language that can be used to specify the behavior of Java modules (as in design by contract -- DBC). It has many tools to do assertion checking, unit testing, etc. The principal current tool of the project is OpenJML -- cf. https://www.openjml.org, with binary downloads from https://github.com/OpenJML/OpenJML/releases/latest
    Downloads: 2 This Week
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  • 25
    The ObjectExplorer4J (OE4J) is a Java tool for the graphical presentation of objects and references.
    Downloads: 2 This Week
    Last Update:
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