A curated list of windows specific, native (Windows specific C# is legal though) Free Open Source software. This list contains MOSTLY [open source][1] code (as defined by the linked Open Source Definition), and sellers providing source, who aren't evil for physical resources.
This is released under a Creative Commons-Attribution-ShareAlike license,
version 4 (SPDX code CC-BY-SA-4.0). You can find its text in the LICENSE file.
Note for contributors: If you want to make a pull request, please read CONTRIBUTING.md first.
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Akelpad - It is is an open source editor for plain text. It is designed to be a small and fast. [LICENCE NOT CLEAR HELP WANTED]
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Koru - Local-first desktop workspace for notes, documents and files, written in Rust. Native Windows x86-64 build (also available for macOS on Apple silicon); imports Evernote, Notion, OneNote and Markdown.
MPL-2.0 -
Metapad - Metapad: fast, tiny and powerful Windows notepad replacement. GPL-3.0-only
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Notepad++ - Notepad++ is a free (as in “free speech” and also as in “free beer”) source code editor and Notepad replacement that supports several languages. Running in the MS Windows environment, its use is governed by GNU General Public License.
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WinVI - WinVi is a free editor for MS Windows. GPL-2.0-or-later
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Notepad3 - Notepad like text editor based on the Scintilla source code. Notepad3 based on code from Notepad2 and MiniPath on code from metapath.
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Dev-C++ - A fast, portable, simple, and free C/C++ IDE. Dev C++ has been downloaded over 67,796,885 times since 2000 GNU General Public License.
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Euler Math Toolbox - A powerful math program combining numerical and symbolic tools (using the open computer algebra system Maxima) in one free and open source package GNU General Public License.
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RadAsm - RadASM is a lightweight IDE tool for all kinds of programmers who are looking for a straightforward application in which to edit their code. Public Domain
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Sally IDE - A simple C++ IDE, part of SmartWin++ GPL-2.0-or-later
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Visual Masm - Assembly IDE for Microsoft MASM MIT
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Winasm Studio - Assembly IDE for Microsoft Windows MIT
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Visual Leak Detector - Visual Leak Detector for Visual C++ 2008-2015 LGPL-2.0-only:
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7-zip - 7-Zip is a file archiver with a high compression ratio. LGPL-2.0-only The most of the code is under the GNU LGPL license. Some parts of the code are under the BSD 3-clause License. Also there is unRAR license restriction for some parts of the code.
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Awayra - Windows break reminder with separate eye and movement timers, optional sounds, and idle-aware scheduling.
GPL-3.0-only -
Codex Quota Overlay - Windows desktop overlay and local quota dashboard for Codex, with read-only rate-limit, pace, forecast, history, and activity views.
MIT -
RControlPanel - Independent ReactOS Control Panel. GPL-2.0-only
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Winmerge - 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. GPL-2.0-or-later
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Yori - Yori is a CMD replacement shell that supports backquotes, job control, and improves tab completion, file matching, aliases, command history, and more. MIT
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Win32DiskImager - A Windows tool for writing images to USB sticks or SD/CF cards GPL-2.0-only
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CDRTfe - cdrtfe is an open source CD/DVD/BD burning application for Microsoft Windows GPL-2.0-or-later
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InfraRecorder - InfraRecorder is a free CD/DVD burning solution for Microsoft Windows. GPL-3.0-only
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Task Explorer - Task Explorer is a powerful task management tool designed not only to monitor running applications but to provide deep insight into what those applications are doing.GPL-3.0-only
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PowerToys - Windows system utilities to maximize productivity MIT
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Cubic Explorer - The code is copyright the original developer Marko Savolainen. A binary exists in Portable Apps Platform.
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Explorer++ - Explorer++ is a lightweight and fast file manager for Windows. GPL-3.0-only
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FarManager - Far Manager is a program for managing files and archives in Windows operating systems. BSD Style
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Heirloom - Heirloom apps — Modernized File Manager and Program Manager for Windows [MIT][BSD Zero Clause License]
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TablacusExplorer - A tabbed file manager with Add-on support. MIT
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WinFile - Original Windows File Manager (winfile) with enhancements. MIT
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RsNetMon - Network monitor showing the TCP/UDP ports. Source available
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FFFTP - A F**** Fast FTP client. BSD-2-Clause
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WinSCP - WinSCP is a popular free SFTP and FTP client for Windows, a powerful file manager that will improve your productivity. GPL-3.0-only
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Miranda-NG - Miranda NG: Next Generation of Miranda IM. GPL-2.0-only
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Eudora-Win - Email client. BSD-Like.
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AI Dictation - Voice-to-text app for Windows with a configurable global shortcut, offline recognition, and optional cloud transcription and cleanup.
MIT -
Billy - A fast no-nonsense music player. [FSA]
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BluetoothHandsFreeToggle - Fixes low-quality Bluetooth headset audio when games or voice apps leave a Windows headset stuck in Hands-Free mode, with safe reset, disable, and restore options.
MIT -
Camstudio V2 - CamStudio is a desktop software for Windows computers that can record all on-screen video and audio activity. GPL-2.0-or-later
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Equalizer APO - Equalizer APO is a parametric / graphic equalizer for Windows. GPL-2.0-or-later
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Fermi Tracker - FamiTracker is a free windows tracker for producing music for the NES/Famicom-systems. The interface is based on MadTracker and should be easy to use if you've been using trackers before. Source available
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LionSnake Modeller - This modeler is designed for creating posable subdivision surface models for use with the Persistence of Vision Ray Tracer, but you can also use it for editing Alias/Wavefront mesh files. Source available
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Mechvibes X - Play mechanical keyboard sounds as you type with 3D Spatial Audio and pitch/volume randomization.
MIT -
MPC-BE - BE is a free and open source audio and video player for Windows. GPL-3.0-only
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MPC-HC - An extremely light-weight, open source media player for Windows. GPL-3.0-only
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OpenMT - OpenMPT is a powerful audio application that makes writing music fun, easy and efficient. BSD-3-Clause-Modification
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Riplox - Riplox is a video downloader for Windows that can also take links shared from your phone. GPL-3.0-only
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Serenity - Serenity Audio Player is a simple, clean and lightweight Windows audio player. GPL-2.0-only
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ShareX - ShareX is a free and open-source application that enables users to capture or record any area of their screen with a single keystroke. GPL-3.0-only
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VirtualDub - VirtualDub is a video capture/processing utility for 32-bit and 64-bit Windows platforms. GPL-2.0-only
- LegendCTL - Standalone configurator for supported ZD Ultimate Legend controller settings over local USB-HID; unofficial, not firmware/macros/remapping/virtual-controller software. MIT
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ImageGlass - A lightweight, versatile image viewer. ImageGlass-EULA
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InkIt - Ultra-lightweight and offline PDF viewer, signer, filler, and annotation tool. MIT
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GSView - GSview is a graphical interface for Ghostscript under MS-Windows under "Aladdin Free Public Licence".
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DVI For Windows - DVI for Windows, another very fast viewer for windows. [NO-LICENCE]
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YAP - Yet another DVI previewer. GPL-2.0-or-later
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WinDjview - WinDjView is a fast, compact and powerful DjVu viewer for Windows with tabbed interface, continuous scrolling and advanced printing options. It uses the free DjVuLibre library to decode DjVu documents. DjVu is a web-centric format and software platform for distributing documents and images. GPL-2.0-or-later
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SumatraPDF - PDF, eBook (epub, mobi), comic book (cbz/cbr), DjVu, XPS, CHM, image viewer for Windows. BSD-2-Clause
- A treasure of modding utilities. No need to replicate here. See there.
- A suggestion by another user, contains freeware. See there
[NO-LICENCE] - Licence is not available in package. [FSA] - Freeware with source available.