Open Source C# Internet Software
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C# Internet Software
View 8643 business solutionsBrowse 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.
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AI-generated apps that pass security reviewRetool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
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Enterprise-grade ITSM, for every businessFreshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
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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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Safe Exam Browser is a webbrowser-environment to carry out online-exams safely. The software changes any computer into a secure workstation. It regulates the access to any utilities and prevents students from using unauthorised resources.
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v2rayN
A V2Ray client for Windows, support Xray core and v2fly core
A V2Ray client for Windows, support Xray core and v2fly core. If you are new to this, please download v2rayN-Core.zip from releases. Otherwise please download v2rayN.zip (you will also need to download v2ray core into the same folder with v2rayN.exe) Run v2rayN.exe. -
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Proton VPN Windows App
Official ProtonVPN Windows app
The ProtonVPN Windows app project hosts the official open-source client software that lets users securely connect their Windows machines to the ProtonVPN service with full system-wide VPN protection. It includes a modern GUI built with .NET and WPF that lets users authenticate, choose VPN servers, and configure features like split tunneling or kill switch, while a background Windows service manages VPN connections using the OpenVPN protocol and handles networking tasks such as firewall and adapter configuration. The app integrates a custom TAP driver and a split tunnel callout driver to help route traffic securely and prevent leaks, and is structured so the GUI and service components work together to deliver a smooth user experience on Windows desktops and laptops. ProtonVPN’s Windows client supports both free and paid users with access to Proton’s global server network, encrypted tunnels, and privacy-first policies that block logging and respect user anonymity. -
Our Free Plans just got better! | Auth0You 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.
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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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netch
A simple proxy client
Netch is an open-source Windows proxy client written in C#, designed for both gaming and general web acceleration. It supports various proxy protocols—Socks5, Shadowsocks, ShadowsocksR, Trojan, VMess, VLESS—and multiple operation modes including process-level interception, shared network, tun/tap virtual adapters, and web proxy. Extensively configurable, it’s ideal for users managing traffic routing per application. -
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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. -
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Selenium
Browser automation framework and ecosystem
Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily it is for automating web applications for testing purposes, but is certainly not limited to just that. Boring web-based administration tasks can (and should) also be automated as well. If you want to create robust, browser-based regression automation suites and tests, scale and distribute scripts across many environments, then you want to use Selenium WebDriver, a collection of language specific bindings to drive a browser - the way it is meant to be driven. If you want to create quick bug reproduction scripts, create scripts to aid in automation-aided exploratory testing, then you want to use Selenium IDE; a Chrome and Firefox add-on that will do simple record-and-playback of interactions with the browser. If you want to scale by distributing and running tests on several machines and manage multiple environments from a central point. -
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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. -
Find Hidden Risks in Windows Task SchedulerWindows Task Scheduler might be hiding critical failures. Download the free JAMS diagnostic tool to uncover problems before they impact production—get a color-coded risk report with clear remediation steps in minutes.
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EverythingToolbar
Everything integration for the Windows taskbar
EverythingToolbar is an open-source Windows utility that integrates Voidtools’ “Everything” file search directly into the Windows taskbar search bar. It mimics the look and feel of Windows 10/11 search and offers seamless real‑time file search powered by Everything. EverythingToolbar includes common search filters out of the box. For advanced users, it can synchronize with Everything's custom filters, giving you complete control over your search experience. Enable this feature by checking Use Everything filters in the EverythingToolbar's Filters settings. Easily toggle search flags (match case, whole word, match path, and regex) to find your files with precision. Create custom Open with actions by navigating to Settings → Custom actions. Enable Automatically apply rules based on condition to execute commands automatically based on file type and regular expressions. Leave the regex field empty to display the action only in the context menu. -
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CefSharp
.NET bindings for the Chromium embedded framework
CefSharp is an easy way to embed a full-featured standards-compliant web browser into your C# or VB.NET app. CefSharp has browser controls for WinForms and WPF apps, and a headless (offscreen) version for automation projects too. CefSharp is based on Chromium Embedded Framework, the open source version of Google Chrome. CefSharp embraces modern web standards, and supports HTML5, JavaScript, CSS3 and HTML5 audio/video elements. 3D content is supported via WebGL which uses OpenGL/DirectX for hardware accelerated rendering. CefSharp includes embedded modules for PDF, web page printing and the WebKit Inspector (developer tools). CefSharp has no external dependencies, and the full build of CefSharp only adds ~80 MB to your app. See the CefSharp.MinimalExample project for ready-to-compile minimal example apps built with CefSharp. Within the projects source there are more complicated example projects. -
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respite vpn - ssh & openvpn injector
Bypass your ISP's firewalls and connect to the internet!
Source: https://github.com/AlizerUncaged/HTTP-Injector respite is a SSH/openVPN client that allows you to connect to the internet with custom injected HTTP Proxy headers. This application requires Java (https://www.java.com/en/download/) and .Net 4.5 (https://www.microsoft.com/en-ph/download/details.aspx?id=42642 .Net 4.5 is already preinstalled in Windows 10). There are many SSH and OpenVPN Server providers in the internet, one is https://www.tcpvpn.com HTTP Proxy responses override (source code): https://github.com/AlizerDoesJava/respite-proxy-override Please rate, any feedback is appreciated. The application and server providers are free. -
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QRCoder
A pure C# Open Source QR Code implementation
QRCoder is a simple library, written in C#.NET, which enables you to create QR codes. It hasn't any dependencies on other libraries and is available as .NET Framework and .NET Core PCL version on NuGet. Feel free to grab-up/fork the project and make it better! QRCoder is a .NET library, completely written in C#, which enables you to generate QR Codes as defined by ISO/IEC 18004. The main target of the QRCoder library is to deliver a small and easy-to-use solution, which has no dependencies to other libraries or network stacks. (Like QR Code generators which are relying on online services which makes them vulnerable/slow in some cases.) Although simplicity is one of the main goals, QRCoder is really flexible, in both "output formats" as well as in "payload types". Payload types? Yes, QRCoder brings its own "payload generator", which helps you to create a big list of different payload types to generate special QR codes like "WiFi QR Codes", "Girocodes", "SwissQRCodes" and many more. -
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Duplicati
Store securely encrypted backups in the cloud!
Duplicati is a free and open source backup client for securely storing your data. Duplicati stores encrypted, incremental, compressed backups on cloud storage services and remote file servers using AES-256 encryption, keeping your data safe and always updated. It works with most storage services, including Google Cloud and Drive, Amazon S3, Microsoft Azure and OneDrive, Dropbox, FTPOpenStack Storage (Swift), SSH (SFTP), WebDAV, Tencent Cloud Object Storage (COS), and more! Duplicati also works on all major platforms (Windows, Linux and OSX). Unlike many other backup solutions, Duplicati ensures that your data is stored securely far away and updated regularly. Incremental updates means it saves on bandwidth and storage space, with a scheduler that automatically keeps your backups up to date. -
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V2ray Config Pool - Free VPN Config
Multi-Protocol VPN Configuration Manager
V2ray Config Pool - Multi-Protocol Free VPN Configuration Manager Description: V2ray Config Pool is a free Windows application designed for users who need seamless access to global VPN configurations. This powerful tool collects and organizes a wide range of protocols, including VMess, VLESS, Trojan, HTTPS, Shadowsocks, and WireGuard, from over 60 countries based on IPs and locations. Whether you are a VPN enthusiast or a professional looking to optimize your network, V2ray Config Pool makes it easy to find and use configurations tailored to your needs. Key features include: * Global Database: Access a rich pool of configurations and subscriptions from 60+ countries. * Wide Protocol Support: Manage VMess, VLESS, Trojan, Shadowsocks, WireGuard, and more in one place. * Optimized for Performance: Ensure secure, fast, and reliable connections. Empower your networking experience with V2ray Config Pool—a comprehensive and free solution for global VPN access! -
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AutoWikiBrowser is a semi-automated Wikipedia editor, designed to make tedious, repetitive tasks quicker and easier. For more information, see the project homepage at http://en.wikipedia.org/wiki/Wikipedia:AutoWikiBrowser.
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A KeePass plugin that downloads and stores favicons. A favicon is the little icon / logo used to identify many websites, typically displayed in the browser's address bar, bookmark list and on tabs.
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Simple DNSCrypt
A simple management tool for dnscrypt-proxy
SimpleDnsCrypt is a user-friendly graphical interface for dnscrypt-proxy, designed to make encrypted DNS resolution simple and accessible for Windows users who want to improve their privacy and security without delving into complex command-line tools. It provides an intuitive control panel where individuals can enable DNS encryption (such as DNS-over-HTTPS or DNS-over-TLS), select trusted resolvers, and configure advanced options like upstream resolver lists, fallback settings, and filtering rules. By abstracting the complexity of DNS encryption setup, SimpleDnsCrypt helps protect users from ISP tracking, DNS spoofing, and on-path attacks that intercept or tamper with standard DNS lookups. The project also includes handy features like automatic service installation, status monitoring, log viewing, and resolver health checks, making it easier to diagnose connection issues or ensure the encrypted DNS chain remains operational. -
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Fast Artificial Neural Network Library is a free open source neural network library, which implements multilayer artificial neural networks in C with support for both fully connected and sparsely connected networks. Cross-platform execution in both fixed and floating point are supported. It includes a framework for easy handling of training data sets. It is easy to use, versatile, well documented, and fast. Bindings to more than 15 programming languages are available. An easy to read introduction article and a reference manual accompanies the library with examples and recommendations on how to use the library. Several graphical user interfaces are also available for the library.
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QR Code Generator
Offline QR Code generator focused on privacy, speed, and ease of use.
QR Code Generator by Mariano Ortu is a lightweight, offline QR Code generator designed for professionals and users who value privacy and control. It creates clean, reliable QR Codes without any internet connection, ensuring all your data stays on your device. No ads, no tracking, full transparency. Compatible with .NET Framework 4.8 and Windows 8 or later. -
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TunMod VPN Client
TunMod VPN Client
TunMod VPN Client is a Windows App designed for secure VPN tunneling and seamless server connections. Featuring Payload Generator, SSH Client, SSL/TLS Tunneling, and multi-profile management, it allows for customized, encrypted connections. TunMod also supports V2Ray, Xray, and XTLS protocols,l2tp,PPTP,HTTPS,OpenVPN, making it a comprehensive solution for advanced tunneling needs. Any suggestions or bug reports: tunmodsupp@gmail.com https://github.com/TunMod/TunMod-VPN-Client -
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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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Safe Exam Browser Patch
Bypass Safe Exam Browser restrictions
This project is a bypass of Safe Exam Browser to allow users to exit the exam screen. -
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ConcatPDF
PDF Concatenation Tool
ConcatPDF is the tool to concatenate PDF files. It can concatenate, extract, encrypt, decrypt, configure PDF files, convert image files to PDF. GUI version and CUI version are both available. iText.NET is iText porting on .NET Framework by J#. This library allows you to generate PDF, (X)HTML, XML, RTF files on Microsoft.NET Framework including ASP.NET. -
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Google Mobile Ads Unity Plugin
}Unity Plugin for the Google Mobile Ads SDK
The Google Mobile Ads SDK is the latest generation in Google mobile advertising featuring refined ad formats and streamlined APIs for access to mobile ad networks and advertising solutions. The SDK enables mobile app developers to maximize their monetization in native mobile apps. This repository contains the source code for the Google Mobile Ads Unity plugin. This plugin enables Unity developers to easily serve Google Mobile Ads on Android and iOS apps without having to write Java or Objective-C code. The plugin provides a C# interface for requesting ads that is used by C# scripts in your Unity project. You can help improve the Google Mobile Ads Unity plugin by opting-in to sending usage data to Google. The data collected is general information about how you are using the plugin (such as ad unit creation and processing errors).
