Open Source Visual Basic .NET Software

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

  • Vibes don’t ship, Retool does Icon
    Vibes don’t ship, Retool does

    Start from a prompt and build production-ready apps on your dataβ€”with security, permissions, and compliance built in.

    Vibe coding tools create cool demos, but Retool helps you build software your company can actually use. Generate internal apps that connect directly to your dataβ€”deployed in your cloud with enterprise security from day one. Build dashboards, admin panels, and workflows with granular permissions already in place. Stop prototyping and ship on a platform that actually passes security review.
    Build apps that ship
  • Atera all-in-one platform IT management software with AI agents Icon
    Atera all-in-one platform IT management software with AI agents

    Ideal for internal IT departments or managed service providers (MSPs)

    Atera’s AI agents don’t just assist, they act. From detection to resolution, they handle incidents and requests instantly, taking your IT management from automated to autonomous.
    Learn More
  • 1

    Auto Key Clicker

    Sends keystrokes and mouse clicks at the desired rate.

    Auto Key Clicker is a small program that I wrote in my spare time, which sends specified text and/or mouse clicks at a designated rate. You may have to run the program as Administrator in order for it to work with certain programs.
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    Downloads: 2,885 This Week
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  • 2
    DWSIM - Open Source Process Simulator

    DWSIM - Open Source Process Simulator

    Simulate chemical processes using advanced thermodynamic models

    DWSIM is an open source, CAPE-OPEN compliant chemical process simulator for Windows, Linux and macOS systems. Written in VB.NET and C#, DWSIM features a comprehensive set of unit operations, advanced thermodynamic models, support for reacting systems, petroleum characterization tools and a fully-featured graphical interface. DWSIM Pro is a commercial sibling of DWSIM built on top of open-source software. It offers extended features, comes with private support, and is accessible in the cloud. Visit simulate365.com for details.
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    Downloads: 2,687 This Week
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  • 3
    GCBASIC
    GCBASIC is an open-source BASIC compiler for 8 bit Microchip PIC, Atmel AVR legacy, AVRDx and LGT microcontrollers. See https://ko-fi.com/post/The-Story-of-GCBASIC-Making-Microcontroller-Progr-D1D319SJ72 for story of GCBASIC. This is a continuous release project. The latest release is always available. This will give you the most complete development toolchain to create and program 8-bit PIC, AVR and LGT microcontrollers. We have added new capabilities that make GCBASIC the easiest tool set available - supporting over 1400 microcontrollers with tools to make this fun and simple. Please see the download section for your options. We have two IDEs, we have just the compiler and we have a minimal install - it is your choice. Please see the homepage here: https://gcbasic.com
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    Downloads: 367 This Week
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  • 4

    Irrlicht Engine

    3D Engine c++

    The Irrlicht Engine is an open source high performance realtime 3D engine written and usable in C++. It is completely cross-platform, using D3D, OpenGL and its own software renderers.
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    Downloads: 247 This Week
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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
  • 5
    CamDesk

    CamDesk

    The Desktop Webcam Widget

    CamDesk is a free, open source, desktop webcam widget, that was created as home surveillance application. Although others have used it for demonstrations even with CamStudio, and QuickTime Player for screen casting.
    Downloads: 71 This Week
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  • 6
    SwithMail
    Send SMTP email silently from command line (CLI), or a batch file using Exchange, Gmail, Hotmail, or Yahoo! Plus. Supports XML settings files, variables, or all settings explicitly from the command line. Now supporting Exit Codes for batch file use (will return "0" for successful delivery, or "1" for error delivering) - handle your batch file accordingly.
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    Downloads: 45 This Week
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  • 7

    MPXJ

    Multi platform library to read and write schedule data

    MPXJ is an open source file handling library for Java, .Net and Ruby to read and write Microsoft Project MPX and MSPDI XML files, Planner files, Primavera XER files and databases, Asta Powerproject files and databases, Asta Easyplan files, Phoenix Project Manager files, FastTrack FTS files, GanttProject GAN files, TurboProject PEP files, ConceptDraw PROJECT CDPX, CPDZ and CPDTZ files, Synchro Scheduler SP files and MPP, MPT, and MPD files for Project 98, 2000, 2002, 2003, 2007, 2010, 2013, 2016 and 2019.
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    Downloads: 28 This Week
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  • 8
    SilentXMRMiner

    SilentXMRMiner

    A Silent (Hidden) Monero (XMR) Miner Builder

    A cryptocurrency miner designed to run covertly on systems for Monero (XMR) mining.
    Downloads: 5 This Week
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  • 9

    Okapi Framework (Old .NET version)

    See http://okapi.opentag.com/ for LATES VERSION of the Okapi Framework

    THIS VERSION ON SOURCEFORGE IS NO LONGER SUPPORTED and works only on Windows. The Okapi Framework is a set of components and tools for localization and translation tasks. THE NEWEST JAVA-BASED VERSION OF OKAPI IS AVAILABLE AT: http://okapi.opentag.com/ The new version runs on Windows, Mac, Linux, etc.
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    Downloads: 30 This Week
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  • Leverage AI to Automate Medical Coding Icon
    Leverage AI to Automate Medical Coding

    Medical Coding Solution

    As a healthcare provider, you should be paid promptly for the services you provide to patients. Slow, inefficient, and error-prone manual coding keeps you from the financial peace you deserve. XpertDox’s autonomous coding solution accelerates the revenue cycle so you can focus on providing great healthcare.
    Learn More
  • 10
    FastReport Open Source

    FastReport Open Source

    Free Open Source Reporting tool for .NET

    Free Open Source Reporting tool for .NET Core/.NET Framework that helps your application generate document-like reports.
    Downloads: 53 This Week
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  • 11
    Lime Miner

    Lime Miner

    A simple hidden silent XMR miner

    A simple, customizable Monero (XMR) miner with options for stealth mining.
    Downloads: 2 This Week
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  • 12
    db4o is the world's leading open source object database for Java and .NET. Leverage fast native object persistence, ACID transactions, query-by-example, S.O.D.A object query API, automatic class schema evolution, small size (http://developer.db4o.com)
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    Downloads: 12 This Week
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  • 13

    The Tao Framework

    Superseded by OpenTK: https://sourceforge.net/projects/opentk/

    The Tao Framework for .NET is a collection of bindings to facilitate cross-platform game-related development utilizing the .NET platform. Superseded by OpenTK: https://sourceforge.net/projects/opentk/
    Downloads: 10 This Week
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  • 14
    OpenSearchServer Search Engine

    OpenSearchServer Search Engine

    An open source search engine with RESTFul API and crawlers

    OpenSearchServer is a powerful, enterprise-class, search engine program. Using the web user interface, the crawlers (web, file, database, etc.) and the client libraries (REST/API , Ruby, Rails, Node.js, PHP, Perl) you will be able to integrate quickly and easily advanced full-text search capabilities in your application: Full-text with basic semantic, join queries, boolean queries, facet and filter, document (PDF, Office, etc.) indexation, web scrapping,etc. OpenSearchServer runs on Windows and Linux/Unix/BSD.
    Downloads: 5 This Week
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  • 15
    Text Hex Convert v2.1.1

    Text Hex Convert v2.1.1

    THC - Convert Hex, or String with ease!

    A tool for converting hex values with ease! Download now, and you wont get your head hurt again. This tool converts Text values to Hex values, and vice-versa. Written in VB.NET. Created solely for aiding ROM Hacking at first, but became rather an important tool. Source Code: https://sourceforge.net/u/kakarot1212/profile/
    Downloads: 14 This Week
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  • 16
    EACtranslator
    Small software to easily translate the language file of the Exact Audio Copy (EAC) software. Need .Net 2.0 to run.
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    Downloads: 21 This Week
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  • 17
    mXparser - Math Parser Java C# Library

    mXparser - Math Parser Java C# Library

    A flexible mathematical expressions parser for JAVA, Android, C# .NET

    mXparser is highly flexible parser of math expressions. Software provides easy to use API for JAVA, Android, C# .NET/MONO (CLS). Main functionalities: - basic operators, i.e.: +, -, *, ^, ! - Boolean logic operators i.e.: or, and, xor - binary relations i.e.: =, <, > - math functions (large library of 1-arg, 2-arg, 3-arg - - functions) i.e.: sin, cos, Stirling numbers, log, inverse functions - constants (large library), i.e.: pi, e, golden ratio - n-args functions i.e.: greatest common divisor - iterated summation and product operators - differentiation and integration High flexibility: - user defined constants and arguments, both free - and dependent on other arguments + possibility of use in functions - user defined functions (both free and depended) - user defined recursive arguments + simple (controlled) recursion (1 recursive argument) - user defined recursive functions / expressions (any) - complex, many arguments, no limitation - internal syntax checkin
    Downloads: 6 This Week
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  • 18
    The Troll Virus

    The Troll Virus

    Source Code of The Troll Virus

    Downloads: 14 This Week
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  • 19
    Embeds text and files in images with optional encryption. Easy-to-use UI, error reporting, and self-update (beta)
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    Downloads: 17 This Week
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  • 20
    DarkLight Cover/Calibrator

    DarkLight Cover/Calibrator

    DIY project to build a cover, flat panel or combo flip-flat panel

    The DarkLight Cover/Calibrator (DLC) is a DIY project to build a motorized telescope cover, flat panel, or a combination flip-flat system. Its modular design supports various setups: a 12V light panel without a servo for a wall-mounted calibration panel, a servo-only cover for sky flats, or both integrated into a flip-flat mechanism. The DLC also includes optional dew heating to reduce extra equipment and cabling. With available drivers, it works with ASCOM or INDI. We’re excited to announce that the DarkLight Cover Calibrator project has officially moved to GitHub! πŸ”— New GitHub Repository: πŸ‘‰ https://github.com/10thTeeAstronomy/DarkLight_CoverCalibrator Β© Nathan Woelfle 2025. All Rights Reserved. Permission granted for personal and academic use only. Code may not be copied or used without proper credit.
    Downloads: 12 This Week
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  • 21
    Scorched Earth Online War

    Scorched Earth Online War

    Online War system for IL-2 Sturmovik and Iron Front in ArmA 2

    SEOW is a dynamic multiplayer campaign system for running on-line wars using the IL-2 combat simulator together with Iron Front in ArmA 2. SEOW is a free add-on for IL-2 and Iron Front in ArmA 2 released under the GNU Public Licence. For an install of SEOW, you need the MP, the DB and the DCS, 3 downloads in total. Check out the Files tab above for direct downloads.
    Downloads: 12 This Week
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  • 22
    Dark Sky Entertainment: Beyond Protocol
    This is the full sourcecode, all graphics, music, soundfx, and assets related to the game. Binaries are available in the downloads, however, it is advised that you run all execution from MS Studio debugger so that no chance of dataloss can exist. 2012: Visit http://www.afterprotocol.com/ to play the open-source version of the game! Visit http://www.beyondprotocol.org/ for the community forums. Visit https://sourceforge.net/apps/mediawiki/beyondprotocol/index.php?title=Main_Page for the Wiki.
    Downloads: 2 This Week
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  • 23

    MakeISO

    A quick MS-Windows way to turn folders in to .ISO files. (CD/DVD/BR)

    A Windows based .NET frontend for the windows port of mkisofs. It is designed to allow instant and easy ISO creation of any Windows folder via a Windows Explorer Context Menu option "MakeISO".. PLEASE NOTE: this is currently non-operational! However I will be working on it over the next few months to make it as such. NOTE: NOT OPERATIONAL YET!!
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    Downloads: 10 This Week
    Last Update:
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  • 24
    SimMetrics is a Similarity Metric Library, e.g. from edit distance's (Levenshtein, Gotoh, Jaro etc) to other metrics, (e.g Soundex, Chapman). Work provided by UK Sheffield University funded by (AKT) an IRC sponsored by EPSRC, grant number GR/N15764/01.
    Downloads: 2 This Week
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  • 25
    Gooper1 Building Creator

    Gooper1 Building Creator

    A revolutionary building creator for Skyscraper.

    NOTE: G1BC IS NOT READY FOR DOWNLOAD YET. G1BC is a graphical building design tool for Skyscraper that is designed to be a step up from Beno Building Creator. It is coordinate-based, which allows for walls of any size, height, and angle compared to BBC's full-height, 90-degree walls. G1BC is currently in early development. The development team (gooper1 and elevescalators) are aiming for a beta release date in mid- to late-2012. G1BC is licensed under the CC BY-NC-SA license, the deed of which can be found at http://j.mp/ccbyncsa3.
    Downloads: 9 This Week
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