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.

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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  • Build Agents and Models on One Platform Icon
    Build Agents and Models on One Platform

    Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.

    Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
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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: 489 This Week
    Last Update:
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  • 2
    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: 37 This Week
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  • 3

    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: 151 This Week
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  • 4
    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: 110 This Week
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  • Secure File Transfer for Windows with Cerberus by Redwood Icon
    Secure File Transfer for Windows with Cerberus by Redwood

    Protect and share files over FTP/S, SFTP, HTTPS and SCP with the #1 rated Windows file transfer server.

    Cerberus supports unlimited users and connections on a single IP, with built-in encryption, 2FA, and a browser-based web client — all deployable in under 15 minutes with a 25-day free trial.
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  • 5
    OpenRocket
    An Open Source model rocket simulator.
    Downloads: 89 This Week
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  • 6
    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: 64 This Week
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  • 7
    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: 42 This Week
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  • 8
    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: 33 This Week
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  • 9
    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: 96 This Week
    Last Update:
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  • Train ML Models With SQL You Already Know Icon
    Train ML Models With SQL You Already Know

    BigQuery automates data prep, analysis, and predictions with built-in AI assistance.

    Build and deploy ML models using familiar SQL. Automate data prep with built-in Gemini. Query 1 TB and store 10 GB free monthly.
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  • 10

    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: 94 This Week
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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
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  • 12
    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: 10 This Week
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  • 13
    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: 17 This Week
    Last Update:
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  • 14
    Random Dresser
    This application allows you chose randomly from a user specified set of outfits and accessories. Each outfit or accessory can be assigned weighed probability making more or less likely to be chosen
    Downloads: 7 This Week
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  • 15
    3D advanced and realistic bus simulator. Reefer to http://virtualbus.info and http://forum.virtualbus.info for more details.
    Downloads: 24 This Week
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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: 23 This Week
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  • 17
    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: 9 This Week
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  • 18
    A tool to calculate placement of holes on a tin whistle.
    Downloads: 6 This Week
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  • 19
    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: 7 This Week
    Last Update:
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  • 20
    Puzzle16

    Puzzle16

    A puzzle16 visual basic project

    Interesting Puzzle code developed by me for entertaining use only.
    Downloads: 18 This Week
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  • 21
    An easy photo viewer on desktop on Qt.
    Downloads: 17 This Week
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  • 22
    JDiveLog
    JDiveLog is a logbook for scuba diving written in Java. It manages all important dive data, as well as the pictures taken during the dive. Features include import of UDCF data, data from Suunto/Uwatec computers, profile generation, web page generator.
    Downloads: 4 This Week
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  • 23
    A virtual piano in flash. Play and record music with the mouse or keyboard.
    Downloads: 4 This Week
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  • 24
    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: 4 This Week
    Last Update:
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  • 25
    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: 10 This Week
    Last Update:
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