Open Source Windows Software

  • Gain insights and build data-powered applications Icon
    Gain insights and build data-powered applications

    Your unified business intelligence platform. Self-service. Governed. Embedded.

    Chat with your business data with Looker. More than just a modern business intelligence platform, you can turn to Looker for self-service or governed BI, build your own custom applications with trusted metrics, or even bring Looker modeling to your existing BI environment.
  • Omnichannel contact center platform for enterprises. Icon
    Omnichannel contact center platform for enterprises.

    For Call centers or BPOs with a very high volume of calls

    Deliver a personalized customer experience with every interaction, across every channel, with uContact, net2phone’s cloud contact center solution.
  • 1
    qBittorrent

    qBittorrent

    A free and reliable P2P BitTorrent client

    An advanced and multi-platform BitTorrent client with a nice Qt user interface as well as a Web UI for remote control and an integrated search engine. qBittorrent aims to meet the needs of most users while using as little CPU and memory as possible.
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    Downloads: 234,724 This Week
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  • 2
    KeePass

    KeePass

    A lightweight and easy-to-use password manager

    KeePass Password Safe is a free, open source, lightweight, and easy-to-use password manager for Windows, Linux and Mac OS X, with ports for Android, iPhone/iPad and other mobile devices. With so many passwords to remember and the need to vary passwords to protect your valuable data, it’s nice to have KeePass to manage your passwords in a secure way. KeePass puts all your passwords in a highly encrypted database and locks them with one master key or a key file. As a result, you only have to remember one single master password or select the key file to unlock the whole database. And the databases are encrypted using the best and most secure encryption algorithms currently known, AES and Twofish. See our features page for details.
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    Downloads: 152,201 This Week
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  • 3
    Dev-C++

    Dev-C++

    A free, portable, fast and simple C/C++ IDE

    A new and improved fork of Bloodshed Dev-C++
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    Downloads: 168,533 This Week
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  • 4
    TortoiseSVN

    TortoiseSVN

    An Apache SVN client, right where you need it most

    TortoiseSVN is a Subversion (SVN) client, implemented as a windows shell extension. Which means it's available right where you need it: in the Windows file explorer. It's intuitive and easy to use, since it doesn't require the Subversion command line client to run. Simply the coolest Interface to (Sub)Version Control!
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    Downloads: 43,258 This Week
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  • ConnectWise Cybersecurity Management for MSPs Icon
    ConnectWise Cybersecurity Management for MSPs

    Software and support solutions to protect your clients’ critical business assets

    ConnectWise SIEM (formerly Perch) offers threat detection and response backed by an in-house Security Operations Center (SOC). Defend against business email compromise, account takeovers, and see beyond your network traffic. Our team of threat analysts does all the tedium for you, eliminating the noise and sending only identified and verified treats to action on. Built with multi-tenancy, ConnectWise SIEM helps you keep clients safe with the best threat intel on the market.
  • 5
    WinMerge

    WinMerge

    Windows visual diff and merge for files and directories

    WinMerge is a Windows tool for visual difference display and merging, for both files and directories. It is highly useful for determining what has changed between file versions, and then merging those changes. WinMerge has Unicode support, Flexible syntax coloring editor, Visual SourceSafe integration, and Windows Shell integration. Regexp filtering for filenames and lines. Side-by-side line difference and highlights differences inside lines. A file map shows the overall file differences in a location pane. The user interface is translated into several languages.
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    Downloads: 34,983 This Week
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  • 6
    Tux Paint

    Tux Paint

    An award-winning drawing program for children of all ages

    Tux Paint is a free, award-winning drawing program originally created for children ages 3 to 12, but enjoyed by all! It combines an easy-to-use interface, fun sound effects, and an encouraging cartoon mascot who guides children as they use the program. You're presented with a blank canvas and a variety of drawing tools to help them be creative. Along with paintbrush, shapes and text, Tux Paint includes a "stamp" feature to add pre-drawn or photographic imagery to pictures, and a set of "magic tools" that provide filter effects (like blur, tint and waves) and interesting drawing tools (like train tracks, bubbles and grass). Tux Paint includes a collection of "starter" images, both coloring-book style and photo-realistic, and a large collections of stamps are available as a separate download. Additional content can be added by parents & teachers, or downloaded from 3rd parties. Tux Paint is available for Windows, macOS, Android, Linux, & Haiku operating systems, among others.
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    Downloads: 20,045 This Week
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  • 7

    eMule

    A free peer-to-peer (P2P) file sharing client

    eMule is a free peer-to-peer (P2P) file-sharing client for Microsoft Windows that was launched in 2002 as an alternative to eDonkey2000. To date, eMule is one of the world’s largest and most trustworthy P2P file-sharing clients. eMule includes advanced search features, file checks for corruptions while downloading, a preview while downloading function, and a credit system to reward frequent uploads.
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    Downloads: 15,727 This Week
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  • 8
    Dev-C++ for Windows 10/8/7

    Dev-C++ for Windows 10/8/7

    A fast, portable, simple, and free C/C++ IDE

    Coding Boot Camp Learning to program? Check out the free boot camp from Embarcadero which runs from Monday, August 22nd to Friday, August 26th. https://learndelphi.org/boot-camp-2022/ Embarcadero Dev-C++ is a new and improved fork (sponsored by Embarcadero) of Bloodshed Dev-C++ and Orwell Dev-C++. It is a full-featured Integrated Development Environment (IDE) and code editor for the C/C++ programming language. It uses Mingw port of GCC (GNU Compiler Collection) as its compiler. Embarcadero Dev-C++ can also be used in combination with Cygwin or any other GCC based compiler. Embarcadero Dev-C++ is built using the latest version of Embarcadero Delphi. Embarcadero Dev-C++ has a low memory footprint because it is a native Windows application and does not use Electron. Optimized for parallel compilation on modern multi-core machines. GitHub Project: https://github.com/Embarcadero/Dev-Cpp/ Sponsored by Embarcadero: https://www.embarcadero.com/free-tools/dev-cpp
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    Downloads: 14,484 This Week
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  • 9
    Dia Diagram Editor

    Dia Diagram Editor

    Free drawing software for Windows, Mac OS X, and Linux

    Dia Diagram Editor is free Open Source drawing software for Windows, Mac OS X and Linux. Dia supports more than 30 different diagram types like flowcharts, network diagrams, database models. More than a thousand readymade objects help to draw professional diagrams. Dia can read and write a number of different raster and vector image formats. Software developers and database specialists can use Dia as a CASE tool to generate code skeletons from their drawings. Dia can be scripted and extended using Python.
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    Downloads: 13,362 This Week
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  • Cyber Risk Assessment and Management Platform Icon
    Cyber Risk Assessment and Management Platform

    ConnectWise Identify is a powerful cybersecurity risk assessment platform offering strategic cybersecurity assessments and recommendations.

    When it comes to cybersecurity, what your clients don’t know can really hurt them. And believe it or not, keep them safe starts with asking questions. With ConnectWise Identify Assessment, get access to risk assessment backed by the NIST Cybersecurity Framework to uncover risks across your client’s entire business, not just their networks. With a clearly defined, easy-to-read risk report in hand, you can start having meaningful security conversations that can get you on the path of keeping your clients protected from every angle. Choose from two assessment levels to cover every client’s need, from the Essentials to cover the basics to our Comprehensive Assessment to dive deeper to uncover additional risks. Our intuitive heat map shows you your client’s overall risk level and priority to address risks based on probability and financial impact. Each report includes remediation recommendations to help you create a revenue-generating action plan.
  • 10
    Media Player Classic Home Cinema: MPC-HC

    Media Player Classic Home Cinema: MPC-HC

    An extremely light-weight, open source media player for Windows®

    Media Player Classic Home Cinema (MPC-HC) is an extremely light-weight, open source media player for Windows®. Media Player Classic Home Cinema supports all common video and audio file formats available for playback. Based on the original Guliverkli project, Media Player Classic Home Cinema contains a lot of additional features and bug fixes. Plus Media Player Classic Home Cinema is 100% spyware free, there are no advertisements or toolbars. We care about keeping an open project, open and free for contributions wherever they may come from.
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    Downloads: 7,044 This Week
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  • 11
    MPC-BE

    MPC-BE

    Media Player Classic - BE

    Media Player Classic - BE is a free and open source audio and video player for Windows. Media Player Classic - BE is based on the original "Media Player Classic" project (Gabest) and "Media Player Classic Home Cinema" project (Casimir666), contains additional features and bug fixes.
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    Downloads: 6,930 This Week
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  • 12
    NSIS: Nullsoft Scriptable Install System

    NSIS: Nullsoft Scriptable Install System

    Windows installer development tool

    NSIS (Nullsoft Scriptable Install System) is a professional open source system to create Windows installers. It is designed to be as small and flexible as possible and is therefore very suitable for internet distribution. Being a user's first experience with your product, a stable and reliable installer is an important component of succesful software. With NSIS you can create such installers that are capable of doing everything that is needed to setup your software. NSIS is script-based and allows you to create the logic to handle even the most complex installation tasks. Many plug-ins and scripts are already available: you can create web installers, communicate with Windows and other software components, install or update shared components and more.
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    Downloads: 5,939 This Week
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  • 13
    Dolibarr ERP - CRM

    Dolibarr ERP - CRM

    Open source ERP and CRM web software for business

    Dolibarr ERP - CRM is an easy to use ERP and CRM open source software package (run with a web php server or as standalone software) for businesses, foundations or freelancers (prospect, invoicing, inventory, warehouse, order, shipment, POS, members for foundations, bank accounts...). Dolibarr is also available with auto-installers for users with no technical knowledge to install Dolibarr and all its prerequisites (Apache, Mysql, PHP) with just one package. Available platforms for such packages are: Windows, Debian, Ubuntu, Mint, Redhat, Fedora, OpenSuse, Mandriva, Mageia. Other platform can use the generic distribution. This is a modular product, than can be enhanced with tons of external modules (to provide you features not available by default) from https://www.dolistore.com Download Dolibarr ERP - CRM here or sign up for 15-day free trial of the cloud-based application with free updates and support at one of the Cloud providers https://saas.dolibarr.org/
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    Downloads: 3,966 This Week
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  • 14
    Vuze - Azureus

    Vuze - Azureus

    An extremely powerful and configurable BitTorrent client

    Vuze (formerly Azureus) is an extremely powerful and configurable BitTorrent client. Search and download torrent files. Play, convert and transcode videos and music for playing on many devices such as PSP, TiVo, XBox, PS3, iTunes (iPhone, iPod, Apple TV).
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    Downloads: 4,117 This Week
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  • 15
    Hugin

    Hugin

    Panorama photo stitcher

    With Hugin you can assemble a mosaic of photographs into a complete immersive panorama, stitch any series of overlapping pictures and much more.
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    Downloads: 2,895 This Week
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  • 16
    simutrans

    simutrans

    A free transportation simulator game

    Simutrans is a cross-platform simulation game where players try to successfully manage transportation systems between places by land, air, and water for passengers, mail, and goods. Planes, ships, trains, trams, trucks, buses, or monorails are at your disposal, but factories operate based on contracts and passengers can only travel to their set destinations.
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    Downloads: 2,594 This Week
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  • 17
    XigmaNAS

    XigmaNAS

    XigmaNAS is an open source NAS / OS software appliance

    The XigmaNAS® NAS operating system can be installed on virtually any x64 hardware platform to share computer data storage over a computer network. XigmaNAS is the simplest and fastest way to create a centralized and easily-accessible server for all kind of data! XigmaNAS supports sharing across Windows, Apple, and UNIX-like systems. It includes ZFS (OpenZFS), Software RAID (0,1), disk encryption, S.M.A.R.T / email reports etc. with following protocols/services: CIFS/SMB (samba), Samba AD, FTP, NFS v4, TFTP, AFP, RSYNC, Unison, iSCSI, UPnP, Bittorent, Syncthing, MariaDB with phpMyAdmin, VirtualBox, Bridge, CARP (Common Address Redundancy Protocol) and HAST (Highly Available Storage). Plugins like Plexserver, OBI etc are also available. Everything can easy be managed by a configurable webinterface.
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    Downloads: 1,503 This Week
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  • 18
    Quite Universal Circuit Simulator

    Quite Universal Circuit Simulator

    A circuit simulator with graphical user interface (GUI)

    Qucs is a circuit simulator with graphical user interface. The software aims to support all kinds of circuit simulation types, e.g. DC, AC, S-parameter, Transient, Noise and Harmonic Balance analysis. Pure digital simulations are also supported.
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    Downloads: 1,463 This Week
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  • 19
    Artistic Style
    A Free, Fast, and Small Automatic Formatter for C, C++, C++/CLI, Objective-C, C#, and Java Source Code. Website: http://astyle.sourceforge.net/ Git Repository: https://gitlab.com/saalen/astyle/
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    Downloads: 1,258 This Week
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  • 20
    OpenKM Document Management - DMS

    OpenKM Document Management - DMS

    Document Management System and Content Management System

    OpenKM is a electronic document management system and record management system EDRMS ( DMS, RMS, CMS ). It provides modern and flexible architecture that meet today's IT demands, based on open technology (Java, Tomcat, GWT, Lucene, Hibernate, Spring and jBPM), powerful and scalable multiplatform application. OpenKM is a Web 2.0 application that works with Internet Explorer, Firefox, Safari and Opera. Can be configured in major DMBS like Oracle, PostgreSQL and MySQL among others. Due to its technological architecture design, OpenKM meets the document management needs of businesses of all sizes (from SMEs to big corporations). Thanks to its elegant and intuitive interface, OpenKM transforms complex operations into easy tasks. The most relevant functions of OpenKM is the indexing of the most common types of files: text, Office, Office 2007, OpenOffice, PDF, HTML, XML, MP3, JPEG, etc. For a complete feature list take a look at http://goo.gl/au8cQy
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    Downloads: 1,283 This Week
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  • 21
    PeaZip

    PeaZip

    Free Zip software and Rar extractor

    PeaZip is a free archiver tool. The application provides an unified, natively portable, cross-platform file manager and archive manager GUI for many Open Source technologies like 7-Zip, FreeArc, PAQ, UPX. Create: 7Z, ARC, Brotl, BZip, GZip, PEA, TAR, WIM, XZ, ZPAQ, ZIP, Zstandard files and more Open and extract 200+ file types: ACE, CAB, DEB, ISO, RAR, ZIPX and more Features of PeaZip includes extract, create and convert multiple archives at once, create self-extracting archives (sfx), split files, strong encryption with two factor authentication, encrypted password manager, secure deletion, find duplicate files, calculate hashes, export task definition as command line script.
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    Downloads: 1,183 This Week
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  • 22
    AkelPad
    A simple notepad-like text editor with many features. It is designed to be a small and fast.
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    Downloads: 1,069 This Week
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  • 23
    DC++

    DC++

    A Windows client for the Direct Connect networks

    DC++ is an open source Windows client for the Direct Connect file sharing network. The DC network is a decentralized network, made up of individual servers (hubs) that users join to share files with other members on that hub. Each hub is individually run by a fellow user of the DC network, and may have certain themes to the content on the hub. Hub owners set up rules to regulate their hub as they see fit.
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    Downloads: 1,006 This Week
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  • 24
    DropIt

    DropIt

    A flexible tool to automate processing & organizing files and folders.

    When you need to organize files, DropIt can eliminate much of the drudgery of searching and manually opening folders and moving files around. Drop a group of different files and folders on the floating DropIt image and it sorts them to defined destination folders, compresses or extracts them, opens them with associated programs or performs other defined actions. You can define how filter your files (by name, directory, size, date, properties, content or regular expressions) and associate one of the 21 available actions to perform (Move, Copy, Compress, Extract, Rename, Delete, Split, Join, Encrypt, Decrypt, Open With, Print, Upload, Send by Mail, Create Gallery, Create List, Create Playlist, Create Shortcut, Copy to Clipboard, Change Properties and Ignore). You can also organize your associations in profiles and automatically scan monitored folders at a defined time interval.
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    Downloads: 989 This Week
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  • 25
    Pidgin IM

    Pidgin IM

    A universal instant messaging (IM) program

    See https://pidgin.im/about/ for more information. Pidgin is an instant messaging program which lets you log in to accounts on multiple chat networks simultaneously. It runs on Windows, Linux, and other UNIX operating systems. Pidgin is compatible with the following chat networks out of the box: AIM, ICQ, Google Talk, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, MXit, Novell GroupWise Messenger, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr. It is written in C and makes heavy use of GLib and GTK+. Finch is a command line instant messaging program. It also lets you log in to accounts on multiple chat network simultaneously, and it is compatible with the same chat networks as Pidgin. It is written in C and makes heavy use of GLib and ncurses.
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    Downloads: 5,854 This Week
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