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Open Source Windows Software

  1. WinMerge is an open source differencing and merging tool for Windows. WinMerge can compare both folders and files, presenting differences in a visual text format that is easy to understand and handle.
  2. Meld is a visual diff and merge tool. You can compare two or three files and edit them in place (diffs update dynamically). You can compare two or three folders and launch file comparisons.


  3. Zettlr is a supercharged markdown editor that combines many writing editor features and collect them in one application. It aims at speeding up your workflow and help you write without any interruptions.
    • FreemiumOpen Source
    • Mac
    • Windows
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Vivaldi Browser
    • Google Chrome
    • Safari
    • Yandex.Browser
    • Opera
    • Firefox
    AdGuard is the best way to get rid of intrusive ads and online tracking, and to protect your computer from malware. Make your web surfing faster, safer and more comfortable with AdGuard!.
  4. Pale Moon is an Open Source, Goanna-based web browser available for Microsoft Windows and Linux (with other operating systems in development), focusing on efficiency and customization. Make sure to get the most out of your browser!.
  5. We designed OpenShot Video Editor to be an easy to use, quick to learn, and surprisingly powerful video editor. Take a quick look at some of our most popular features and capabilities.
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • HP webOS
    • Chrome OS
    • Android Tablet
    • iPad
    • Self-Hosted
    • Google Chrome
    • Ungoogled Chromium
    • Mopidy
    • Roku
    • Cloudron
    • Kodi
    • Fire TV
    • Xbox
    • Firefox
    Jellyfin is a personal media server and client. The Jellyfin project was started as a result of Emby's decision to take their code closed-source, as well as various philosophical differences with the core developers.
  6. This eye-care extension enables night mode creating dark themes for websites on the fly. Dark Reader inverts bright colors making them high contrast and easy to read at night.
  7. ImageGlass is a simple picture viewer with which you will be able to display your image collection in a very similar way to the one that Windows provides by default, but with some additional functions.

    Bundleware

    The first installer available on the website, presented by the author, "ImageGlass Spider", is bundleware. From the privacy policy: "Also, the software shares available resources with the Spider's customers, to pass traffic through your device."

    The author is aware of the problem and indecisive on what action to take. Since less experienced users would fall for the "Spider" edition, be careful when downloading this software.

  8. nomacs is a small, fast image viewer able to handle the most common image formats including RAW images. Additionally it is possible to synchronize multiple viewers. A synchronization of viewers running on the same computer or via LAN is possible.

    Discontinued

    The last release is from July 2020, and it seems the main developer is not working on it anymore. See: https://github.com/nomacs/nomacs/issues/612

  9. Features a free draw tool, arrows, lines, circles, and other tools for editing screenshots you take. Possibility to add text, but not possible to change text size.
  10. itch.io gives you the ability to design a page where people can download games you have uploaded. You can optionally put a minimum price on your game (which can be 0), giving people the opportunity to pay you what they think you deserve. All files and images are hosted on itch.
  11. Simple tool to configure Windows Filtering Platform (WFP) which can configure network activity on your computer.
  12. Mumble was the first and is the most successful and wide spread free and open source software for VoIP. It was the first VoIP software to provide low-latency audio suitable for gaming, and at the same time was a pioneer in high audio quality at the same time.
  13. Rainmeter allows you to display customizable skins on your desktop, from hardware usage meters to fully functional audio visualizers. You are only limited by your imagination and creativity.