Browse free open source Hobbies software and projects 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

    Your collection, your way

    Data Crow is an open source collection manager for movies & video (DivX, MP4, MKV, etc.), TV series, books (and eBooks), images, board games, comic books, games & software, and music (MP3 and other audio files). Besides these built-in modules (which you can customise to fit your needs) you can create entirely new ones. Want to catalogue your stamps, equipment, wine, or anything else? Data Crow makes it possible. Your collection is accessible the way you prefer: as a stand-alone desktop application, in server-client mode for shared access across multiple users or devices, via the web client in any browser, or on the go with the Data Crow Reader App. The app synchronises with your Data Crow installation and works fully offline. Private. Offline. Completely personal. The Data Crow way.
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    Downloads: 360 This Week
    Last Update:
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  • 2

    nestopiaue

    Nestopia UE

    This project is a fork of the original Nestopia source code, plus the Linux port. The purpose of the project is to enhance the original, and ensure it continues to work on modern operating systems.
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    Downloads: 184 This Week
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  • 3
    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: 163 This Week
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  • 4
    FetLife for Android

    FetLife for Android

    The FetLife App on Android

    This is the FetLife open source application made for Android. FetLife is the app for Kinksters who want to chat with fellow Kinksters, find out where the nearest FetLife events are happening, view other members’ profiles, and many other kinky things. With FetLife on Android, it’s easier than ever to access all the things you love about FetLife. Get notified on your Android phone so you stay on top of conversations and discussions, and discover the latest events on the app’s map. Want to be discreet? No problem, as the FetLife app comes with discreet mode so you can use the app freely without worries.
    Downloads: 22 This Week
    Last Update:
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  • 5
    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: 76 This Week
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  • 6
    OpenRocket
    An Open Source model rocket simulator.
    Downloads: 51 This Week
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  • 7
    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
    Downloads: 49 This Week
    Last Update:
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  • 8
    IDTE- ID3 Tag Editor

    IDTE- ID3 Tag Editor

    A Smarter Way to Tag FLAC, Vorbis, Lyrics, WMA, WavPack, and ID3 Tags

    IDTE is a full-featured tag editor for Windows that supports tagging of FLAC, APE, ID3v1.x/2.x, WMA, Lyrics, and Vorbis metadata in audio files. It also includes a powerful audio player with support for 40+ lossy and lossless formats, including FLAC, ALAC, OGG, APE, MP3, and more. IDTE offers a wide range of advanced features: • Rename files using tag information • Export and manage tag data • Create and manage playlists • Search online for missing or incomplete tags • Fetch lyrics and album artwork • Full CUE sheet support • Batch processing and multi-file editing • SFX, visualizations, and more A new, minimalistic version of IDTE is also available for download: https://sourceforge.net/projects/idte ⚠️ Important Notice Tagging MP4 video files and WAV audio files using IDTE is not recommended. WAV tag support is ambiguous and inconsistently handled across players (see: http://wiki.audacityteam.org/wiki/WAV).
    Downloads: 46 This Week
    Last Update:
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  • 9

    Digital Modellbahn

    Digitale Modellbahnsteuerung

    Projekt Files für den Eigenbau von (Modellbahn) Elektronik. Hinweis: Die auf dieser Homepage vorgestellte Software, Schaltungen und Layouts können für den privaten Gebrauch frei genutzt werden, eine kommerzielle Verwertung bedarf einer schriftlichen Genehmigung
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    Downloads: 106 This Week
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  • 10
    Grimmory

    Grimmory

    Grimmory is the successor of booklore

    Grimmory is a self-hosted digital library management platform designed to help users organize, read, and manage their entire book collection in a centralized and fully controlled environment. As the successor to Booklore, it expands on the idea of personal knowledge ownership by allowing users to store and interact with books without relying on third-party cloud services. The platform supports a wide range of formats, including eBooks, PDFs, comics, and audiobooks, making it versatile for different types of media consumption. It includes a built-in browser-based reader that allows users to read, annotate, and track progress directly within the application. Grimmory also emphasizes automation through features like metadata enrichment and automatic file ingestion, reducing manual effort when managing large collections. Multi-user support enables separate libraries, preferences, and reading progress for different users within the same instance.
    Downloads: 3 This Week
    Last Update:
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  • 11
    QuickPlay

    QuickPlay

    Retro-Gaming Multi-Emulator Frontend. Frontend-of-Frontends

    Welcome to the QuickPlay homepage. QuickPlay - MAME Edition is a powerful Windows universal emulator frontend, which has support for countless emulators, systems, game sets and other emulation frontend projects. Its main focus is on being user friendly, simple to set up, yet thorough: its a combined searchable library for all of your retro-gaming...It has a novel Emulator Finder system that takes the hassle out of initial setup and ongoing maintainance
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    Downloads: 16 This Week
    Last Update:
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  • 12
    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: 60 This Week
    Last Update:
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  • 13
    Scheme Maker
    Scheme Maker is an application designed to enable you to create cross-stitch and knitting schemes from images and photos. You can determine width and height of your scheme, the number of colors and stranded thread firm for scheme key.
    Downloads: 18 This Week
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  • 14
    IMG4DC – Dreamcast Selfboot Toolkit

    IMG4DC – Dreamcast Selfboot Toolkit

    Generate ready-to-use disc images for your Sega Dreamcast system !

    IMG4DC is a tools package containing two utilities to generate selfboot disc images for your Sega Dreamcast: cdi4dc, designed to make Padus DiscJuggler (CDI) images and mds4dc, designed to make Alcohol 120% (MDS/MDF) images. A selfboot image is a disc image format specially prepared to boot on your Dreamcast. In clear, by burning a selfboot image to a standard blank CD-R, the software containted into this disc image will run onto your Dreamcast, as a legit game disc, without any modchip or other hacking device. To use this software package, you must have mkisofs from the cdrtools project. This tool will create the ISO image needed by img4dc. If you want to learn more by the selfboot image format, click here: http://dcemulation.org/?title=Selfboot_formats
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    Downloads: 12 This Week
    Last Update:
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  • 15
    crosti

    crosti

    Build your personal cross stitches!

    This tool allows you to make your own unique cross stitch design from custom image. You can resize and rotate image, reduce the number of colors, change image palette, make cross stitch design, preview it, save and print. Cross stitch design edition available: colors and icons changing, new color addition, color fill, pixel draw, lines and half-stitches.
    Downloads: 8 This Week
    Last Update:
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  • 16
    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: 24 This Week
    Last Update:
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  • 17

    Guitar Chord Diagram Maker

    Print guitar chord diagrams

    Create and print instant guitar chord diagram charts for songs. Taken from the tutorial at http://re-bol.com
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    Downloads: 8 This Week
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  • 18
    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: 20 This Week
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  • 19
    An easy photo viewer on desktop on Qt.
    Downloads: 19 This Week
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  • 20
    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: 10 This Week
    Last Update:
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  • 21
    Movie Central

    Movie Central

    An awesome movie collection manager

    Movie Central is a personal movie collection manager. It is a free desktop application for creating and searching personal movie collection. Manage your movies in your PC in the most easy way possible. It has a has very simple UI and is a very lightweight program. Includes scraper tool, that automatically add movie metadata to your collection, looking through your movie folders in PC. An extremely accurate and fast scraper tool. You don't need to wait hours to complete.
    Downloads: 6 This Week
    Last Update:
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  • 22
    Fractalscope

    Fractalscope

    A cross-platform fractal explorer

    A tabbed document interface, cross-platform fractal explorer written in Qt. Emphasis is on ease of use and a fluid, non-blocking interface. Features include animated zooming and panning, arbitrary precision, and antialiasing. An introductory video is available to view here: https://www.youtube.com/watch?v=SXaqaun121E
    Downloads: 9 This Week
    Last Update:
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  • 23
    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: 16 This Week
    Last Update:
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  • 24
    NoteTrainer PRO

    NoteTrainer PRO

    Trains quickly score reading and piano playing (MIDI-keyboard)

    The main purpose of NoteTrainer PRO is developing the ability of quickly reading and playing notes "at sight." The program generates a random sequence of notes in the range selected by the user, and controls the speed and accuracy of their playing. Instead of random notes can be loaded not very complex melodies in MusicXML format and practice by studying them. Input the notes possible not only with MIDI-keyboard, but from the PC-keyboard, as well as using the virtual keyboard.
    Downloads: 6 This Week
    Last Update:
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  • 25
    A tool to calculate placement of holes on a tin whistle.
    Downloads: 4 This Week
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