Browse free open source C# Internet Software and projects below. Use the toggles on the left to filter open source C# Internet Software by OS, license, language, programming language, and project status.

  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • Run applications fast and securely in a fully managed environment Icon
    Run applications fast and securely in a fully managed environment

    Cloud Run is a fully-managed compute platform that lets you run your code in a container directly on top of scalable infrastructure.

    Run frontend and backend services, batch jobs, deploy websites and applications, and queue processing workloads without the need to manage infrastructure.
    Try for free
  • 1
    Jackett

    Jackett

    API Support for your favorite torrent trackers

    Jackett works as a proxy server, it translates queries from apps (Sonarr, Radarr, SickRage, CouchPotato, Mylar3, Lidarr, DuckieTV, qBittorrent, Nefarious, etc.) into tracker-site-specific HTTP queries, parses the HTML or JSON response, and then sends results back to the requesting software. This allows for getting recent uploads (like RSS) and performing searches. Jackett is a single repository of maintained indexer scraping & translation logic, removing the burden from other apps. Trackers marked with (invite needed) have no active maintainer and may be missing features or be broken. If your client supports multiple feeds it's recommended to add each indexer directly instead of using all indexers. Using the all indexer has no advantages (besides reduced management overhead). We recommend you install Jackett as a Windows service using the supplied installer. You may also download the zipped version if you would like to configure everything manually.
    Downloads: 322 This Week
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  • 2
    GO Contact Sync Mod

    GO Contact Sync Mod

    Sync Outlook contacts and calendars with Google

    Please install the latest version >4.0, because it uses the new Google People API. The Google Contacts API is now deprecated and is scheduled for sunset on June 15, 2021. GO Contact Sync Mod synchronizes your Microsoft Outlook contacts with your Google Mail address book, including pictures, categories and contact notes. It also syncs your Outlook Calendar Appointments on demand to Google Calendar. This Mod fork adds many enhancements and bug fixes to the obviously dead project 'Go Contact Sync'. Minimum requirement for GO Contact Sync Mod is .NET 4.7.2 and Windows 7 (32 or 64 bit).
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    Downloads: 377 This Week
    Last Update:
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  • 3
    Service Bus Explorer

    Service Bus Explorer

    Connect to a Service Bus namespace and administer messaging entities

    The Service Bus Explorer allows users to connect to a Service Bus namespace and administer messaging entities in an easy manner. The tool provides advanced features like import/export functionality or the ability to test topics, queues, subscriptions, relay services, notification hubs, and events hubs. Microsoft Azure Service Bus is a reliable information delivery service. The purpose of this service is to make communication easier. When two or more parties want to exchange information, they need a communication facilitator. Service Bus is a brokered, or third-party communication mechanism. This is similar to postal service in the physical world. Postal services make it very easy to send different kinds of letters and packages with a variety of delivery guarantees, anywhere in the world. The Service Bus Explorer 2.1.0 can be used with the Service Bus for Windows Server 1.1. The Service Bus Explorer 2.1.0 uses a version of the Microsoft.ServiceBus.dll client library.
    Downloads: 35 This Week
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  • 4
    Virtual Router Plus Windows Wifi Hotspot

    Virtual Router Plus Windows Wifi Hotspot

    Turns any Windows 7 or later computer into a Wifi Hot Spot

    Virtual Router Plus is based on Virtual Router project and turns any Windows 7 or later computer into a Wifi Hot Spot using Wireless Hosted Network technology.
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    Downloads: 106 This Week
    Last Update:
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  • Secure User Management, Made Simple | Frontegg Icon
    Secure User Management, Made Simple | Frontegg

    Get 7,500 MAUs, 50 tenants, and 5 SSOs free – integrated into your app with just a few lines of code.

    Frontegg powers modern businesses with a user management platform that’s fast to deploy and built to scale. Embed SSO, multi-tenancy, and a customer-facing admin portal using robust SDKs and APIs – no complex setup required. Designed for the Product-Led Growth era, it simplifies setup, secures your users, and frees your team to innovate. From startups to enterprises, Frontegg delivers enterprise-grade tools at zero cost to start. Kick off today.
    Start for Free
  • 5
    Megaupload Downloader
    Megaupload Downloader is a programme born to avoid users tons of advertisement, poup-ups, etc.. that we get when we try to download from free file hosting services.
    Downloads: 16 This Week
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  • 6
    Morse Code Tools

    Morse Code Tools

    Translate RSS/Atom feeds & Files into Morse, send Morse from Key/Mouse

    Two programs: (1) MorseNews sends news from one or more RSS and Atom feeds as Morse code, and (2) MorseKeyer, an iambic/bug keyer with mouse & serial key/paddle. Both play CW or sounder audio with optional Rayleigh fading and static crashes, and drive external sounder, loop, or ham rig. See http://morse-rss-news.sourceforge.net/
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    Downloads: 23 This Week
    Last Update:
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  • 7
    A Windows TFTP server and client written in the .NET framework using C#. Includes support for TFTP options, logging of TFTP requests to different sources including to a SQL server. A class is also available to include TFTP into your own program.
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    Downloads: 37 This Week
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  • 8
    PROJECT NO LONGER HOSTED @ SOURCE FORGE Monitor network bandwidth. Desktop and Systray graph. Monitor any or all network interfaces. Ping/Trace/UPnP utilities. Email notifier (POP/IMAP). Requires .NET 2.0.
    Downloads: 14 This Week
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  • 9
    Airfox

    Airfox

    Airfox is a free and fast web browser. It uses the Gecko Engine.

    Airfox is a fast, consistent, reliable, secure, private and independent web browser. Developed in the Microsoft .NET Runtime Environment, Airfox uses the Gecko Engine also seen in some well-known browsers such as Firefox, Waterfox, Pale Moon. Some advanced features such as Reliable Download Manager are not available due to restrictions from the GeckoFX runtime, but as seen from the results of the futuremark, acid 3 & acid 2 tests, Airfox’s scores/rankings are merit. We are just asking to support us by downloading Airfox and giving it a try. We promise that V2 will be just as good as the other famous browsers. We just want you to follow us on this journey. We want you to follow us on this quest. The quest for true browsing speed. The quest for an uncluttered web. The quest of YOUR ideal web . Download it at http://www.airfox.sourceforge.net
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    Downloads: 7 This Week
    Last Update:
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  • Reliable DNS hosting and domain name management Icon
    Reliable DNS hosting and domain name management

    Developers and system admins love our simple self-serve automation tools for DNS, domains, and more.

    The process starts automatically when you transfer or add a domain to your account. Well-documented, battle-tested libraries for you to work with. Reduce the risk of your application being down due to DDoS attacks. Add redundancy to your zones by having them replicate to other DNS providers. Forward any email from your domain to your existing inbox. No limits on how many records you can have on your zones. Each transfer includes a one-year extension. A DNSimple subscription is required to register, transfer, or renew domain names. Domain registration, transfer, and renewal fees are not included in your subscription.
    Learn More
  • 10
    A Modular Communications Suite developed in Visual Basic .NET and Visual C# .NET 2005. NOTICE: THIS REQUIRES VISUAL STUDIO 2005 EXPRESS COMPONENTS AND THE .NET 2.0 FRAMEWORK
    Downloads: 10 This Week
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  • 11
    dboxShare

    dboxShare

    A more reliable enterprise file sharing synchronization software

    dboxShare is an easy-to-use free open-source enterprise file hosting server software, based on .NET technology development, used to build a safe and efficient file cloud storage and cloud management platform. Users don't need to change their work habits, and two-way file synchronization will automatically upload, download and update versions according to their permissions, providing a convenient and efficient solution for sharing and cooperation. The system has the characteristics of simple installation, flexible deployment and small maintenance. It is suitable for enterprises, organizations and teams to build a safe and efficient private cloud drive. Installation guide Please refer to http://www.dboxshare.com/en/install.html
    Downloads: 4 This Week
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  • 12
    DocLib is a Web-based Document Management System implemented in ASP .NET technology to facilitate documents finding in Full Text Search, Directory Browsering, Search by document summary,by Catagory/Attribute , and by Virtual Directory.
    Downloads: 3 This Week
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  • 13
    Just Journal is a blog web application. You can create infinite blogs, share public, private and friends entries. Lets everyone run their own blog site, even you!
    Downloads: 3 This Week
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  • 14
    NZB-O-MaticPlus (NOMP) is an extension of the original NZB-O-Matic client. NOMP is a NZB client for usenet written in C# .NET
    Downloads: 3 This Week
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  • 15
    XMLNuke

    XMLNuke

    A Web Development Framework focused on the Data

    == THIS PROJECT HAS MOVED TO https://github.com/byjg/xmlnuke == XMLNuke is a Web Development Framework focused on produce the data. You can to create applications very rich by producing natively XML or JSON and the Framework transforms this data to another formats including XHTML.
    Downloads: 1 This Week
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  • 16
    DB Web Admin Provides access to your databases through a web interface. It gives users visibility into their SQL Server database instances. DBWA shows users Currently running SQL Queries, Historic Queries, and Fragmented Indexes. DBWA also allows users to kill currently running queries or run their own SQL queries. DBWA is implemented in ASP.NET MVC using C#. Previous Versions supported Oracle(PL/SQL and JSP), MS SQLServer (ASP), and MySQL/ODBC (C#.NET) versions.
    Downloads: 2 This Week
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  • 17
    Feed Launch .NET

    Feed Launch .NET

    Feed Launch .NET is a feed editor for RSS 2.0 and ATOM 1.0 feeds.

    Feed Launch .NET is an open-source feed editor for RSS 2.0 and ATOM 1.0 Feeds. Full graphical interface allows for seamless feed management and feed creation, including uploading feeds via FTP. Feeds are automatically saved in XML format. Project released under GPL.
    Downloads: 2 This Week
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  • 18
    NzbSearcher
    NzbSearcher is a windows client for SABnzbd which integrates it with various UseNet (nzb) search sites. Check website below for changelog. Currently supported NZB search sites: NZBindex.nl, NzbMatrix.com, YabSearch.com and NZB.su
    Downloads: 1 This Week
    Last Update:
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  • 19
    Using the new C# Dll from swig portability of Openobex/ObexFtp to write a nice GUI able to transfer file between two devices with obex protocol. More Info’s here: http://cs-obexftp.wiki.sourceforge.net/
    Downloads: 1 This Week
    Last Update:
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  • 20
    DotNetAge
    DotNetAge is an CMS,Social Networking platform and Mvc RAD platform. DotNetAge focus on aesthetics,ease-of-use,SEO and web standards.
    Downloads: 1 This Week
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  • 21
    a tray applet for quick and easy web publishing or sharing files on the internet
    Downloads: 1 This Week
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  • 22
    We provide a Hebrew version of Mozilla Firefox, Mozilla Thunderbird, SeaMonkey and Mozilla Application Suite. SeaMonkey/Mozilla Suite are also available for download from here, while the latest Firefox & Thunderbird are available only from mozilla.com.
    Downloads: 1 This Week
    Last Update:
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  • 23
    Proxy Ninja

    Proxy Ninja

    This is the new proxyMouse, a lite and handy proxy tool.

    ProxyNinja is a lite and handy tool, stil powerfully and use able. Featuring multithreading and load/save option.
    Downloads: 1 This Week
    Last Update:
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  • 24
    Seven-Labs

    Seven-Labs

    Application Development

    This repository serves as our entire project space which contains all of the open-source projects we've worked on. - C/C++ - C#/.NET - PHP - HTML5/CSS3
    Downloads: 1 This Week
    Last Update:
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  • 25
    XSockets - open, lightweight and highly portable library of universal and eXtensible Super Sockets for point-to-point communication. A unified API for many communication methods between programs and/or devices (e.g. TCP/IP sockets,serial link,pipes,IrDA)
    Downloads: 1 This Week
    Last Update:
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