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

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  • 1
    Data Crow

    Data Crow

    The ultimate cataloguer

    Data Crow allows you to use the standard movie & video (divx, xvid, DVD, Blu-ray, etc), book (and eBooks), images, board games, comic books, games & software, music (mp3 and other music files) cataloguing modules. Besides these modules, which you can change to fit your requirements, you can create new modules (want to catalogue your stamps, equipment, or anything else?). The GUI is skinnable. Reporting (using JasperReports and their community edition JasperSoft Developer Studio ), loan administration, item importing & exporting, backup & restore and many other optional features are waiting for you.
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    Downloads: 308 This Week
    Last Update:
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  • 2
    GEDKeeper

    GEDKeeper

    GEDKeeper - opensource and crossplatform genealogy management program

    GEDKeeper program is developed for work with personal genealogical database. The program is designed for extremely simple and intuitive interface. The program is very easy to install on the computer, fully supports the GEDCOM format, has no restrictions on the number of persons and generations, allows you to generate pedigrees, building several tree species, as well as print and save their images, provides fast navigation, filtering, searching and adding multimedia materials. In addition there is an output of geographic data on Google maps (© Google). The aim of the program is as quick and effective means of conducting personal genealogical database. We invite native speakers to improve the translation of the program on the Crowdin platform: https://crowdin.com/project/gedkeeper Project is published on GitHub, url: https://github.com/Serg-Norseman/GEDKeeper
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    Downloads: 129 This Week
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  • 3
    OpenRocket
    An Open Source model rocket simulator.
    Downloads: 53 This Week
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  • 4
    RocksmithToTab

    RocksmithToTab

    Exports Rocksmith 2014 songs to Guitar Pro tabs

    Exports Rocksmith 2014 arrangements to Guitar Pro tabs (.gp5, .gpx). It parses Rocksmith's .psarc archives and converts any songs found within to tablature. All the Rocksmith techniques are supported and translated, and you get all of the chord diagrams and fingering hints that Rocksmith shows you. It's a great way to figure out specific parts of a song, and Guitar Pro's speed trainer is a very good alternative to the riff repeater. All arrangement types (bass, lead, rhythm) can be exported, either together in a single tab or into separate tabs.
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    Downloads: 59 This Week
    Last Update:
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  • 5
    LPub3D

    LPub3D

    LDraw™ editor for LEGO® style digital building instructions.

    LPub3D is an Open Source WYSIWYG editing application for creating LEGO® style digital building instructions. LPub3D is developed and maintained by Trevor SANDY. It uses the LDraw™ parts library, the most comprehensive library of digital Open Source LEGO® bricks available (www.ldraw.org/ ) and reads the LDraw LDR and MPD model file formats. LPub3D is available for free under the GNU Public License v3 and runs on Windows, Linux and macOS Operating Systems. LPub3D is also available as a Linux 'no-install', multi-platform AppImage. Portions of LPub3D are based on LPUB© 2007-2009 Kevin Clague, LeoCAD© 2025 Leonardo Zide, LDView© 2025 Travis Cobbs & Peter Bartfai and additional third party components. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this application. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this application. © 2015-2025 Trevor SANDY
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    Downloads: 26 This Week
    Last Update:
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  • 6
    Civ VI Replay

    Civ VI Replay

    Replay and analyse your Civ VI game

    Analyse, learn, progress with this tool by replaying your game and look over your opponent strategies. Load one or multiple saves and explore the state of the turn. Instruction Menu -> Open if you want to load a single save Menu -> Open Directory and select a folder. If you want to look at your whole game, setup your game by saving each turn and load the auto (located usually at "..Document\My Games\Sid Meier's Civilization VI\Saves")
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    Downloads: 107 This Week
    Last Update:
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  • 7
    Origami Editor 3D

    Origami Editor 3D

    Virtual paper folding program

    Origami Editor 3D is an advanced paper folding simulator. It uses a what-you-see-is-what-you-get interface and operates with a geometric abstraction of the Yoshizawa-Randlett system. Anything from a simple airplane to John Montroll's omega star can be folded in this editor. Origami files created with the program preserve the entire folding process, and they can be exported as folding diagrams in PDF, animated GIF files, or even as standalone Java programs displaying the origami in a 3D viewer when opened. The main purpose of this program is designing origami, but if you only want to learn how to make some origami figures, there is a set of built-in example files that can help you. Currently, there are 34 example figures available. Please note that this project was created for fun and still is a work in progress. The Discussion forum is open for anyone who wants to report a bug or suggest a new feature. User Guide: http://origamieditor3d.sourceforge.net/userguide/en/index.html
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    Downloads: 30 This Week
    Last Update:
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  • 8
    Koll3ctions
    Kindle collection manager. Runs on Mac OS X, Linux and Windows. Creates collections from your folders on Kindle. Copy your books into your Kindle, run this program, restart your Kindle and enjoy collections!
    Downloads: 4 This Week
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  • 9
    gditools

    gditools

    A Python program/library aimed at GD-ROM image files.

    This Python program/library is designed to handle GD-ROM image (GDI) files. It can be used to list files, extract data, generate sorttxt file, extract bootstrap (IP.BIN) file and more. This project can be used in standalone mode, in interactive mode or as a library in another Python program (check the 'addons' folder to learn how). For your convenience, you can use the gditools.py GUI program supplied in the Files section (optional). To use this project you must install the Python 2.7.x branch release binaries. See the README.TXT file for more informations.
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    Downloads: 17 This Week
    Last Update:
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  • Loan management software that makes it easy. Icon
    Loan management software that makes it easy.

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  • 10
    Bracelet Generator

    Bracelet Generator

    A friendship bracelet pattern designer.

    Bracelet Generator is a friendship bracelet pattern designer. It enables you to easily design your own patterns, add rows and strings, change the colors. The pattern can also be symmetrized. With the two-colored motif editor, create your motif and the pattern will automatically be generated. The motif can be rotated and symmetrized. The patterns can be exported in .png, .jpeg and .ps.
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    Downloads: 15 This Week
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  • 11
    MORSEPOD a morse training file generator for your portable audio file player.
    Downloads: 11 This Week
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  • 12
    Tools for the recipe collector :-) RecipeFox: A addon to FireFox to grab recipes from the net (like the MasterCook addon in Internet Explorer) A recipe converter: It converts recipes from one format to another, and supports the following formats: - AccuC
    Downloads: 2 This Week
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  • 13
    Pythagorean-Numerology-Calculator
    "A basic numerology calculator in JavaScript" A live demo is available at: https://pythagorean-numerology-calc.sourceforge.io/pnc.html Features: -Your connection with the 4 classic elements -Numerology chart calculation -Master numbers detection -Psychologic matrix chart calculator -Name calculation chart -Personal day calendar -Plain calculator for names or numbers -Name diagrams (Norman Shine) -Profiles manager -Unlimited number of profiles -Search and sort feature to find profiles easily -Small help section -Ability to save/export calculations, profiles, and charts -Runs offline as well as online
    Downloads: 4 This Week
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  • 14
    A tool to calculate placement of holes on a tin whistle.
    Downloads: 2 This Week
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  • 15
    SwitchWithIt Ver 1.7.10.50

    SwitchWithIt Ver 1.7.10.50

    Model Railroad Shipment Based Operations Program

    Version 1.7.10.50 UPDATED 02/07/26 Model Railroad shipment based operations program. Generates switchlists for freight, unit, mixed, and passenger trains. Trains can begin or end in Towns, Yards (Normal and Staging), or Industries. Also included is an exportable inventory function with image field . The program is portable. It can be loaded on a thumb drive or other memory device and run from any Windows based computer (not phone). Works on Windows XP, Vista, 7, 8, 10, and 11.
    Downloads: 8 This Week
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  • 16
    This application is designed to help create Contract bridge hands with constrains on points and/ or number of cards per suite for each player. The program is an easy to use Java program which outputs the results in an HTML format (fits an A4 page for easy printing). Media wiki pages: http://sourceforge.net/apps/mediawiki/bridgedealer/
    Downloads: 5 This Week
    Last Update:
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  • 17
    DobHelper

    DobHelper

    Make star maps for anywhere at anytime

    Generate star maps for anywhere at anytime. Choose from a database of thousands of deep sky objects, including all Messier, Caldwell, and NGC objects. Also allows recording of notes on viewed objects, and configuration of user-generated observation lists.
    Downloads: 4 This Week
    Last Update:
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  • 18
    Flexible ROM Corruptor

    Flexible ROM Corruptor

    ROM corrupter for multiple operating systems.

    A flexible ROM corruptor, compatible with several operating systems. ROM corrupting is a popular hobby but is known for being exclusively on Windows due to the general lack of utilities on Mac, Linux and other operating systems. This utility is designed for optimization and compatibility for multiple operating systems.
    Downloads: 4 This Week
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  • 19

    JTagBasedMediaCenter

    a java tag-based media-center

    Downloads: 4 This Week
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  • 20
    Archivist
    Archivist is a program for "Magic the Gathering". Archivist allows you to create Magic Decks for Mindless Automaton and Apprentice. You can manage your private card collection and multiple decks. Rich analysis tools help you to improve your deck. Archivist 2 is the latest version build for Windows Systems using the .NET Framework. Download as archive or self extracting archive. No installation required! CODE moved to GitHub - https://github.com/spech66/archivist
    Downloads: 2 This Week
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  • 21
    alternate firmware for the SparkFun graphical LCD backpack. Includes many speed improvements and new graphical functions over the stock firmware.
    Downloads: 1 This Week
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  • 22

    AutoWolf

    Bot for id Software's Wolfenstein 3D

    This is a port based on Moritz "Ripper" Kroll's WOLF4SDL port for Wolfenstein 3D, a game developed 1992 by id Software and published by Apogee. The source code to the game has been released as GPL. The port implements a "bot" for this game, where the player is controlled by the computer, in the attempt to solve every level autonomously. Available as binaries for Windows and OS X, and as source package for Linux/UNIX (requires SDL and SDL_mixer to build). An experimental build has been released for 16-bit DOS and can be run with DOSBox. See the following YouTube videos for demonstration: http://www.youtube.com/watch?v=6H4a7JfuKRw (alpha02, SDL) http://www.youtube.com/watch?v=04n72MSuZIA (alpha01, DOS experimental) http://www.youtube.com/watch?v=cAtqihh__jM (alpha01, SDL) http://www.youtube.com/watch?v=5_0CONDuIvk (prerelease, SDL) http://www.youtube.com/watch?v=7ooIlHWqP68 (prerelease, SDL)
    Downloads: 3 This Week
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  • 23
    M.A.N.G.
    Marc's Awesome Name Generator is a Java based library to allow the easy and fast generation of random first, middle and last names based on user-definded criteria, such as culture of origin or contained letters.
    Downloads: 3 This Week
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  • 24
    A virtual piano in flash. Play and record music with the mouse or keyboard.
    Downloads: 1 This Week
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  • 25
    GdnPlanner

    GdnPlanner

    2D Editor to manage garden or flat plan

    GdnPlanner is a tool to create the 2D plans of your garden or flat. See review at http://listoffreeware.com/free-landscape-design-software-windows/
    Downloads: 1 This Week
    Last Update:
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