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

  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
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  • Go from Code to Production URL in Seconds Icon
    Go from Code to Production URL in Seconds

    Cloud Run deploys apps in any language instantly. Scales to zero. Pay only when code runs.

    Skip the Kubernetes configs. Cloud Run handles HTTPS, scaling, and infrastructure automatically. Two million requests free per month.
    Try it free
  • 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: 2,470,585 This Week
    Last Update:
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  • 2
    Code::Blocks

    Code::Blocks

    A free C, C++ and Fortran IDE

    Code::Blocks is a free, open-source, cross-platform C, C++ and Fortran IDE built to meet the most demanding needs of its users. It is designed to be very extensible and fully configurable. Finally, an IDE with all the features you need, having a consistent look, feel and operation across platforms. Built around a plugin framework, Code::Blocks can be extended with plugins. Any kind of functionality can be added by installing/coding a plugin. For instance, compiling and debugging functionality is already provided by plugins! We hope you enjoy using Code::Blocks! The Code::Blocks Team
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    Downloads: 74,053 This Week
    Last Update:
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  • 3
    Lazarus

    Lazarus

    Rapid applications development tool and libraries for FPC

    The Lazarus IDE is a stable and feature rich visual programming environment for the FreePascal Compiler. It supports the creation of self-standing graphical and console applications and runs on Linux, FreeBSD, MacOSX and Windows.
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    Downloads: 17,833 This Week
    Last Update:
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  • 4
    WinAVR
    WinAVR (tm) is a suite of executable, open source software development tools for the Atmel AVR series of RISC microprocessors hosted on the Windows platform. Includes the GNU GCC compiler for C and C++.
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    Downloads: 882 This Week
    Last Update:
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  • 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.
    Try free now
  • 5
    Lazarus Code and Component Repository
    Lazarus is a free and open source development tool for the Free Pascal Compiler. The purpose of this project is to serve as a Code Repository, Wiki Knowledgebase and support site for converting existing components and libraries to work with Lazarus and the Free Pascal Compiler.
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    Downloads: 242 This Week
    Last Update:
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  • 6

    ELF Tool Chain

    BSD licensed ELF toolchain

    A BSD-licensed implementation of compilation tools (nm, ar, as, ld, etc.) for the ELF object format.
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    Downloads: 111 This Week
    Last Update:
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  • 7

    GCC toolchain for MSP430

    Superseded by http://www.ti.com/tool/msp430-gcc-opensource

    This is a port of the GNU C Compiler (GCC) and GNU Binutils (as, ld) for the embedded processor MSP430. Tools for debugging and download are provided (GDB, JTAG and BSL) Obsolete. See http://www.ti.com/tool/msp430-gcc-opensource or upstream GNU tools.
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    Downloads: 64 This Week
    Last Update:
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  • 8
    LuaEdit is an IDE/Text Editor/Debugger for the Lua language. Its interface looks like MS Visual Studio .Net� and includes syntax highlighting, code completion, advance breakpoint management, efficient search engines, etc. Client under GPL and server (core debugger) under LGPL.
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    Downloads: 50 This Week
    Last Update:
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  • 9
    CDK4AVR stands for Cross Development Kit for Atmels AVR RISC processor serie and should you support with a comprehensive Assembler and C development environment for even this processor familie under Linux or similar host systems.
    Downloads: 54 This Week
    Last Update:
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  • Catch Bugs Before Your Customers Do Icon
    Catch Bugs Before Your Customers Do

    Real-time error alerts, performance insights, and anomaly detection across your full stack. Free 30-day trial.

    Move from alert to fix before users notice. AppSignal monitors errors, performance bottlenecks, host health, and uptime—all from one dashboard. Instant notifications on deployments, anomaly triggers for memory spikes or error surges, and seamless log management. Works out of the box with Rails, Django, Express, Phoenix, Next.js, and dozens more. Starts at $23/month with no hidden fees.
    Try AppSignal Free
  • 10
    A Front End for TASM. Compiles Assembly Programs.Includes Intellisense to Help Assembly Coders. Immidiate Error Tracking and Instant Code Help provided.
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    Downloads: 64 This Week
    Last Update:
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  • 11
    YAGARTO is a cross development environment for the ARM architecture, running on a Windows host. It includes the GNU C/C++ toolchain and the Eclipse IDE.
    Downloads: 8 This Week
    Last Update:
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  • 12
    BVRDE

    BVRDE

    A fully integrated development environment (IDE) for remote cross-pla

    The BVRDE is a fully integrated development environment (IDE) for remote cross-platform compiling and debugging of UNIX and LINUX console applications. BVRDE runs on a Windows platform, but compiles and debugs applications on UNIX systems.
    Downloads: 5 This Week
    Last Update:
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  • 13

    ELFIO

    A header-only C++ library for accessing files in ELF binary format

    ELFIO is a header-only C++ library intended for reading and generating files in the ELF binary format
    Downloads: 6 This Week
    Last Update:
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  • 14
    Software Development Kit for the Nintendo(tm) Gameboy Advance(tm) based on GCC.
    Downloads: 20 This Week
    Last Update:
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  • 15
    Java IDE, project support, build, debugger, grep.
    Downloads: 18 This Week
    Last Update:
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  • 16
    Development environment for OS/2 and DOS
    Downloads: 8 This Week
    Last Update:
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  • 17
    PyChecker is a static analysis tool for finding bugs in Python source code. It finds problems that are typically caught by a compiler for less dynamic languages, like C and C++. It is similar to lint.
    Downloads: 7 This Week
    Last Update:
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  • 18
    We extend the Eclipse IDE with tools for development in Haskell, a functional programming language, providing support for a wide range of tools (compilers, interpreters, doc tools etc.) in a coherent, convenient and configurable environment.
    Downloads: 3 This Week
    Last Update:
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  • 19
    The TclPro tool set includes a graphical debugger, a static code checker, a wrapper to generate stand-alone executables, a "compiler" that writes out Tcl byte codes, and a loader that reads byte codes.
    Downloads: 10 This Week
    Last Update:
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  • 20
    A PDB file dumper and C++ wrapper library for the Microsoft Debug Information (DIA) 2.0 SDK.
    Downloads: 4 This Week
    Last Update:
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  • 21
    This is a Windows QBasic emulator for Windows. It is suposed to run and build qbasic code. It can build/execute old qbasic code (currently in constructions) Version 0.1 has been released: New commands and lots of bugs removed.
    Downloads: 6 This Week
    Last Update:
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  • 22
    RHIDE is an integrated development environment with inetgrated debugger GDB
    Downloads: 3 This Week
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  • 23
    HTML Onlive Debugger

    HTML Onlive Debugger

    Realtime preview for designers and developers.

    When I got my first Android tablet; I realized how much web design and development were such a tedious process for a large majority of tablet and smart phone users. I found no applications available in Google Play that enabled live code debugging which gave me the incentive to develop one myself. After purchasing Google's developer fee, as well as AIDE I then released on Google Play for all to use.
    Downloads: 5 This Week
    Last Update:
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  • 24
    Main features: wxHatch is a cross platform IDE for wxWigets. It generates new wxWidgets projects, with a main frame and text or drawing/imaging window, provides a simple code editor with syntax highligthing, generates makefiles for
    Downloads: 4 This Week
    Last Update:
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  • 25
    the omega xvi project is a javascript debugger written in javascript. it can debug code, execute blocks of code or entire applications, as well as detect variables. because of its javascript nature, it can be run through a webpage, online.
    Downloads: 3 This Week
    Last Update:
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