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.

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  • 1
    Tor Browser

    Tor Browser

    Browser for using Tor on Windows, Mac OS X or Linux

    Tor Browser enables you to use Tor on Windows, Mac OS X, or Linux without needing to install any software. Tor is a software that bounces your communications around a distributed network of relays run by volunteers. This effectively prevents anyone watching your Internet connection from learning what sites you visit; it prevents the sites you visit from learning your physical location; and allows you access to sites which are blocked. Tor Browser can run off a USB flash drive, comes with a pre-configured web browser to protect your anonymity, and is self-contained (portable).
    Downloads: 959 This Week
    Last Update:
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  • 2

    UFTP

    Encrypted UDP based FTP with multicast

    UFTP is an encrypted multicast file transfer program, designed to securely, reliably, and efficiently transfer files to multiple receivers simultaneously. This is useful for distributing large files to a large number of receivers, and is especially useful for data distribution over a satellite link (with two way communication), where the inherent delay makes any TCP based communication highly inefficient. The multicast encryption scheme is based on TLS with extensions to allow multiple receivers to share a common key. UFTP also has the capability to communicate over disjoint networks separated by one or more firewalls (NAT traversal) and without full end-to-end multicast capability (multicast tunneling) through the use of a UFTP proxy server. These proxies also provide scalability by aggregating responses from a group of receivers.
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    Downloads: 1,126 This Week
    Last Update:
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  • 3

    wxWidgets Dialog Designer

    Dev-C++ with wxWidgets designer

    wxDev-C++ is an opensource wxWidgets Dialog designer that mimics the Delphi/Borland C++ Builder designer.
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    Downloads: 126 This Week
    Last Update:
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  • 4
    ESP32-S2-Mini

    ESP32-S2-Mini

    Arduino ESP32-S2-Mini v1.00 Wemos | Firmware PS4 900x HOST Wifi AP

    Firmware para placa de desarrollo Arduino ESP32-S2 Mini v1.0.0 LOLIN-WIF WEMOS ESP32S2 Dev para Montar Servidor Host AP PlayStation 4 Herramienta web para instalar la última versión del Firmware: https://xdevgms.github.io/ Una vez instalado el firmware podrá conectar con la placa ESP32-S2 Mini vía Wifi WiFi SSID: PS4-Host-AP Password: password Página del administrador http://10.1.1.1/admin.html http://webkey.local/admin.html Nota Importante 1: En la sección configuración General en Conexión WIFI marcar la casilla INICIAR WIFI: y conectar a su wifi local para poder administrar desde una PC, Así podrá subir archivos, borrarlos y Actualizar el Firmware de la placa Nota Importante 2: La herramienta Web https://xdevgms.github.io/ solo la necesita cuando su placa ESP32-S2 este vacía, es decir, sin ningún firmware, luego que cargue este firmware, no volverá a necesitarla y para actualizar solo requerirá descargar la última versión fwupdate_webkey.bin Información
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    Downloads: 172 This Week
    Last Update:
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  • 5
    skycaiji

    skycaiji

    Open source web scraping system for automated data collection tasks

    SkyCaiji is an open source web scraping and data collection system designed to gather information from websites through configurable extraction rules. It focuses on simplifying the process of building crawlers by allowing users to visually define scraping rules rather than writing complex code. It can collect structured or unstructured data from many types of webpages and automate the extraction process for large datasets. SkyCaiji is designed to run on a variety of hosting environments including local machines, shared hosting environments, and cloud servers. It integrates with content management systems so collected data can be published automatically without manual intervention. SkyCaiji also supports automated workflows that continuously gather data and process it based on defined collection rules. Its architecture enables users to build scalable web scraping pipelines that can run unattended once configured.
    Downloads: 21 This Week
    Last Update:
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  • 6
    PNG (Portable Network Graphics image format) and MNG (Multiple-image Network Graphics image and animation format) home sites
    Downloads: 99 This Week
    Last Update:
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  • 7
    PHPFusion

    PHPFusion

    Award-winning lightweight Open Source Content Management System (CMS)

    PHPFusion is an award-winning open source content management system (CMS). PHPFusion is written in PHP and MySQL and includes a simple, comprehensive administration system. Demos : https://demos.php-fusion.co.uk/
    Downloads: 37 This Week
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  • 8
    grab-site

    grab-site

    Web crawler for archiving and backing up sites into WARC archives

    grab-site is an open source web crawling tool designed to archive and back up websites by recursively downloading their content. It works by taking a starting URL and systematically following links across the site, capturing pages and resources and saving them into WARC archive files for long-term preservation. Internally, the crawler uses a fork of the wpull engine to fetch and process web pages efficiently during large-scale crawls. grab-site includes a built-in dashboard that displays real-time crawl activity, including which URLs are currently being processed and how many remain in the queue. Users can dynamically apply ignore patterns during an active crawl, allowing them to skip problematic or unnecessary URLs that could slow down or block the archiving process. grab-site also provides predefined ignore sets for common site structures such as forums and other complex web platforms. Additional mechanisms like duplicate page detection help avoid re-crawling identical content.
    Downloads: 6 This Week
    Last Update:
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  • 9
    Weibo Crawler

    Weibo Crawler

    Python crawler for collecting and downloading Sina Weibo user data

    weibo-crawler is a Python-based data collection tool designed to retrieve information from Sina Weibo user accounts. It automates the process of gathering posts, user profile details, and engagement metrics from one or more target accounts. weibo-crawler can extract comprehensive information about users, including profile attributes such as nickname, follower count, following count, and account metadata. It also captures detailed data about each post, including the content, publishing time, topics, mentions, likes, reposts, and comments. In addition to textual data, the project can download original media from posts, such as images, videos, and Live Photo content. Collected data can be exported to structured formats such as CSV or JSON or stored in databases for further analysis and research. It supports incremental crawling so users can periodically collect only newly published posts, making it useful for ongoing monitoring or dataset updates.
    Downloads: 5 This Week
    Last Update:
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  • 10
    Compiere ERP + CRM Business Solution
    Compiere ERP+CRM is the leading open source ERP solution for Distribution, Retail, Manufacturing and Service industries. Compiere automates accounting, supply chain, inventory and sales orders. Compiere ERP is distributed under GPL V2 by Compiere, Inc.
    Downloads: 18 This Week
    Last Update:
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  • 11
    JTidy is a Java port of HTML Tidy, a HTML syntax checker and pretty printer. Like its non-Java cousin, JTidy can be used as a tool for cleaning up malformed and faulty HTML. In addition, JTidy provides a DOM parser for real-world HTML.
    Downloads: 12 This Week
    Last Update:
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  • 12
    XExternalEditor
    Change documents within a MediaWiki with a click! Open a document via the external editor and save it back. Licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. http://creativecommons.org/licenses/by-nc-sa/3.0/
    Downloads: 19 This Week
    Last Update:
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  • 13
    (XSLT transformer/editor) A text editor that allows the loading and editing of an XML document and an XSLT document at the same time. It also can apply the XSLT to the XML and display the output for further editing/saving. Plugable XML and XSLT parsers
    Downloads: 31 This Week
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  • 14

    hmg/web

    xBase Web Development Tool

    HMG/WEB is a xBase web development tool based on Harbour compiler and jQuery Mobile. HMG/WEB allows you to create web applications using traditional xBase syntax with added new commands. The main goal of the project is to bring the simplicity and power of xBase to the web.
    Downloads: 13 This Week
    Last Update:
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  • 15
    CSZ CMS

    CSZ CMS

    CSZ CMS is a open source content management system. With Codeigniter.

    CSZ CMS is an open source web application that allows to manage all content and settings on the websites. CSZ CMS was built on the basis of Codeigniter and design the structure of Bootstrap, this should make your website fully responsive with ease. CSZ CMS is based on the server side script language PHP and uses a MySQL or MariaDB database for data storage. CSZ CMS is open-source Content Management System. And all is free under the Astian Develop Public License (ADPL).
    Downloads: 5 This Week
    Last Update:
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  • 16
    Mobirise Free Mobile Website Builder

    Mobirise Free Mobile Website Builder

    Create awesome mobile-first websites - No coding!

    Mobirise makes it easy for anyone to create responsive, Google-friendly websites — no coding needed. Choose from 200+ Bootstrap 5-based themes to build sites that look modern, professional, and perfect on any device. With the free Mobirise Website Builder, you can design and edit pages visually using drag-and-drop, inline editing, and simple site settings. Now with Mobirise AI, you can generate entire websites in a minute — making web design faster and more creative than ever.
    Downloads: 12 This Week
    Last Update:
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  • 17
    Yet another Bulletin Board (YaBB)
    YaBB is a FREE Perl forum (bulletin board) system that has rivaled professional message boards for years. YaBB provides chat for visitors where they can post any time and reply to anyone!
    Downloads: 2 This Week
    Last Update:
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  • 18
    Web Spider, Web Crawler, Email Extractor

    Web Spider, Web Crawler, Email Extractor

    Free Extracts Emails, Phones and custom text from Web using JAVA Regex

    In Files there is WebCrawlerMySQL.jar which supports MySql Connection Please follow this link to get latest version https://sourceforge.net/projects/web-spider-web-crawler-extract/ Free Web Spider & Crawler. Extracts Information from Web by parsing millions of pages. Store data into Derby OR MySQL Database and data are not being lost after force closing the spider. - Free Web Spider , Parser, Extractor, Crawler - Extraction of Emails , Phones and Custom Text from Web - Export to Excel File - Data Saved into Derby Database - Written in Java Cross Platform See also Free Email Sender in this link: https://sourceforge.net/projects/gitst-free-email-ender/ Please install Microsoft OpenJDK to start the application https://www.microsoft.com/openjdk
    Downloads: 3 This Week
    Last Update:
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  • 19
    htmlarea

    htmlarea

    Small, powerful, full featured WYSIWYG editor

    HTMLArea 4 is a browser based WYSIWYG editor that easily replaces the TEXTAREA in your web pages. It is written in JavaScript, and suitable for use in any modern web browser, and any page on your web site. Current version is 4.0-2016-08-29
    Downloads: 3 This Week
    Last Update:
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  • 20
    iWiccle - Website CMS Community Builder
    iWiccle is an online Web 2.0 platform. innovative builders specializing in social networks, blogging sites, web communities, gallery presentations, link directories, & article portals. A universal web community script written in PHP & MySQL. New v1.3
    Downloads: 3 This Week
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  • 21
    phpTransformer
    php Transformer the First Enterprise web content management software CMS completely support Multi languages for Interface and content. Store data in MySQL database,Multi Themes, users & group permissions,search engine friendly SEO. phptransformer.com
    Downloads: 3 This Week
    Last Update:
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  • 22
    JNFA - is a netflow analyzer. It uses MySQL database to store accounting information. Filters, used in the JNFA, allows very flexible classificate any kind of traffic and store it in the differend fields in database.
    Downloads: 5 This Week
    Last Update:
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  • 23
    TinyRadius is a small, fast and reliable Java Radius library capable of sending and receiving Radius packets as specified by RFC 2865/2866. TinyRadius is not a fully-fledged Radius server, but helps you to implement Radius services in your application.
    Downloads: 1 This Week
    Last Update:
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  • 24
    Grail is a web browser written in Python using the Tk widget set. It is designed to be highly extensible, allowing the user to extend the ste of content types that are supported. Grail is now being developed by visual-101.
    Downloads: 4 This Week
    Last Update:
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  • 25
    The Tetra Web Engine is a modular, OOP based PHP web engine. Tetra can support multiple database types and is completely themable. Tetra doesn't require any fancy libraries (save libzip for theme and module installation), so it's easy to install.
    Downloads: 4 This Week
    Last Update:
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