Browse free open source Internet software and projects for Windows and Mac below. Use the toggles on the left to filter open source Internet software by OS, license, language, programming language, and project status.

  • Our Free Plans just got better! | Auth0 Icon
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  • Automate contact and company data extraction Icon
    Automate contact and company data extraction

    Build lead generation pipelines that pull emails, phone numbers, and company details from directories, maps, social platforms. Full API access.

    Generate leads at scale without building or maintaining scrapers. Use 10,000+ ready-made tools that handle authentication, pagination, and anti-bot protection. Pull data from business directories, social profiles, and public sources, then export to your CRM or database via API. Schedule recurring extractions, enrich existing datasets, and integrate with your workflows.
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  • 1
    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: 223,312 This Week
    Last Update:
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  • 2
    Tcl

    Tcl

    The Tool Command Language implementation

    Tool Command Language (Tcl) is an interpreted language and very portable interpreter for that language. Tcl is embeddable and extensible, and has been widely used since its creation in 1988 by John Ousterhout. Bug reports to http://core.tcl.tk/tcl/ Follow code development at http://core.tcl.tk/tcl/
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    Downloads: 20,879 This Week
    Last Update:
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  • 3
    Turbo Download Manager

    Turbo Download Manager

    A portable modern multi-threading download manager for all platforms

    A modern multi thread download manager for Windows, Linux, Mac OS, Firefox, Chrome, Opera and Android devices. For bug reports visit: https://github.com/inbasic/turbo-download-manager/issues For FAQs visit: http://add0n.com/turbo-download-manager.html Turbo Download Manager is an stand-alone application without any dependencies. It should run out of the box. Just set the download location while adding the first job request. If you have a browser and would like to integrate this download, use these browser extensions: Firefox: https://addons.mozilla.org/firefox/addon/turbo-download-manager/ Opera: https://addons.opera.com/extensions/details/turbo-download-manager/ Chrome: https://chrome.google.com/webstore/detail/turbo-download-manager/kemfccojgjoilhfmcblgimbggikekjip
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    Downloads: 72 This Week
    Last Update:
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  • 4
    Graphite is a project within SIL's scripts and software dev groups to provide cross-platform rendering for complex writing systems. This project has been deprecated. Graphite2, a new version of the Graphite engine, is available at: https://github.com/silnrsi/graphite with its own bug tracker.
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    Downloads: 109 This Week
    Last Update:
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  • Smart Business Texting that Generates Pipeline Icon
    Smart Business Texting that Generates Pipeline

    Create and convert pipeline at scale through industry leading SMS campaigns, automation, and conversation management.

    TextUs is the leading text messaging service provider for businesses that want to engage in real-time conversations with customers, leads, employees and candidates. Text messaging is one of the most engaging ways to communicate with customers, candidates, employees and leads. 1:1, two-way messaging encourages response and engagement. Text messages help teams get 10x the response rate over phone and email. Business text messaging has become a more viable form of communication than traditional mediums. The TextUs user experience is intentionally designed to resemble the familiar SMS inbox, allowing users to easily manage contacts, conversations, and campaigns. Work right from your desktop with the TextUs web app or use the Chrome extension alongside your ATS or CRM. Leverage the mobile app for on-the-go sending and responding.
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  • 5
    OpenVRML is a cross-platform VRML and X3D browser and C++ runtime library.
    Downloads: 3 This Week
    Last Update:
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  • 6
    Regain is a Java search engine based on Jakarta Lucene. It provides indexing and searching files for plenty of formats (HTML,XML,doc(x),xls(x),ppt(x),oo,PDF,RTF,mp3,mp4,Java). A TagLibrary eases integrating search results in your JSP based web page.
    Downloads: 3 This Week
    Last Update:
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  • 7
    Lobo is an extensible all-Java web browser and RIA platform. It supports HTML 4, Javascript (AJAX) and CSS 2 plus direct JavaFX and Java (Swing/AWT) rendering. Cobra is the web browser's renderer API; also a Javascript-aware HTML parser.
    Downloads: 2 This Week
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  • 8
    Graphical user interface for the Overnet and eDonkey2000 file-sharing command line clients. Runs on Linux, *BSD, MacOSX, and MS Windows.
    Downloads: 7 This Week
    Last Update:
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  • 9
    The Palantir project aims to monitor network health through agents distributed across the network. Each Palantir Agent monitors and tests the network from an enduser point of view and transmits the results to a central facility for analysis.
    Downloads: 5 This Week
    Last Update:
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  • Free and Open Source HR Software Icon
    Free and Open Source HR Software

    OrangeHRM provides a world-class HRIS experience and offers everything you and your team need to be that HR hero you know that you are.

    Give your HR team the tools they need to streamline administrative tasks, support employees, and make informed decisions with the OrangeHRM free and open source HR software.
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  • 10
    Cross platform GUI managing bookmarks and shortcuts in a portable way. Support import/export, search, encryption, hierarchical tags, USB key installation, various environments integration, OS-dependent shortcuts, plugins extensibility.
    Downloads: 2 This Week
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  • 11
    A solution for Home automation, with HTTP access to manage Tini Board, X10 - I2C - LCD components. You can add your own manager and exchange his services with other. All manager are plug on a kernel (Servlet Java).
    Downloads: 2 This Week
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  • 12
    UIVI
    UIVI is a URL navigator with functions such as opening, creating and updating documents, copy and paste, etc. It supports local files, FTP, JMS, JNDI, ZIP files and most of all: it is the WebDAV client that gets the most out of Pincette (pincette.biz
    Downloads: 2 This Week
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  • 13
    A Microsoft MSN Messenger client/library in Java
    Downloads: 1 This Week
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  • 14
    Windows4All - online virtual operating system (sometimes called a Web OS, Webtop, cloud computer). It is a website based on Silverlight that simulates an operating system inside your web browser. You can see live example at http://www.windows4all.com
    Downloads: 1 This Week
    Last Update:
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  • 15
    The best free cross-browser scrolling datagrid control! Hand-made with 100% client-side JavaScript/DHTML, provides clean separation between data models, presentation templates and control behavior, plus professional look-and-feel and high interactivity.
    Downloads: 1 This Week
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  • 16
    Nightingale

    Nightingale

    A community supported fork of the Songbird media player and library.

    Nightingale is a community created fork of the Songbird media player. It is developed by a proud community and we are equally proud to bring you the most extensible, feature-rich media experience on Windows, Mac, and Linux. See the official website at http://getnightingale.com for the source, builds, and information. On Sourceforge, we provide our releases, the binary deps for building, as well as builds for testing purposes.
    Downloads: 1 This Week
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  • 17
    The Password tools bundle is one application combining three tools - the Analyser (shows the "strength" of your password, the Generator (generates "strong" passwords) and the Manager (stores passwords securely using Rijndael).
    Downloads: 1 This Week
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  • 18
    Sidewinder is a new kind of cross-platform application framework that uses web standards like XHTML, SVG and XForms instead of more complex languages, such as C++ or Java, to produce rich internet-facing applications and widgets.
    Downloads: 1 This Week
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  • 19
    a webbased desktop, which handles modules like email-app and so by a webclient. Today only for Mozilla like Browsers. Tester/Developer are welcome :) Check it out on http://x.nebulon.de/netdesk/
    Downloads: 1 This Week
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  • 20
    its powerful ftp tool!
    Downloads: 1 This Week
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  • 21
    This project has been moved away from sourceforge. See http://software.schmorp.de for the new location.
    Downloads: 0 This Week
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  • 22
    The goal of this project is to provide localization (L10N) for the Afrikaans language. Initial projects will include the Mozilla browser and the Gnome Desktop.
    Downloads: 0 This Week
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  • 23
    Control AmaroK from any Firefox browser on your network.
    Downloads: 0 This Week
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  • 24
    The concept behind the 'Applications via XML' (AVX) architecture is to allow applications to become more flexible in the way they go about performing their duties. The essential idea is to avoid 'hard-coding' instructions into an applications' source
    Downloads: 0 This Week
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  • 25
    Astrocytes is a web-based operating system based on eyeOS and joomla to use and MVC and crossplatform to deliver dynamic pages and files in a very easy way to all users.
    Downloads: 0 This Week
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