Open Source C# Business Software
Sort By:
C# Business Software
View related business solutionsBrowse free open source C# Business Software and projects below. Use the toggles on the left to filter open source C# Business Software by OS, license, language, programming language, and project status.
-
Gemini 3 and 200+ AI Models on One PlatformBuild generative AI apps with Vertex AI. Switch between models without switching platforms.
-
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
-
1
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. -
2
Technical analysis library with indicators like ADX, MACD, RSI, Stochastic, TRIX... includes also candlestick pattern recognition. Useful for trading application developpers using either Excel, .NET, Mono, Java, Perl or C/C++.
-
3
FreeImage is a library project for developers who would like to support popular graphics image formats (PNG, JPEG, TIFF, BMP and others). Some highlights are: extremely simple in use, not limited to the local PC (unique FreeImageIO) and Plugin driven!
-
4
Windows Calculator
A simple yet powerful calculator that ships with Windows
Calculator is the open source version of the Microsoft Windows Calculator application. It is a modern Windows app written in C++ and C#, offering standard, scientific, and programmer modes, unit/currency conversion, date calculations, and history/memory operations. It ships preinstalled with Windows and is actively developed on GitHub. Standard Calculator functionality, which offers basic operations and evaluates commands immediately as they are entered. Scientific Calculator functionality, which offers expanded operations and evaluates commands using the order of operations. Programmer Calculator functionality, which offers common mathematical operations for developers, including conversion between common bases. -
AI-powered service management for IT and enterprise teamsGive your IT, operations, and business teams the ability to deliver exceptional services—without the complexity. Maximize operational efficiency with refreshingly simple, AI-powered Freshservice.
-
5
Outlook CalDav Synchronizer
Sync Outlook with Google, SOGo or any other CalDAV / CardDAV server
Free Outlook Plugin, which synchronizes events, tasks and contacts between Outlook and Google, SOGo, NextCloud, Horde or any other CalDAV or CardDAV server. Supported Outlook versions are 2021, 2019, 2016, 2013, 2010 and 2007 and Office 365 for Desktop. This project was initially developed as a master thesis project at the University of Applied Sciences Technikum Wien, Software Engineering Degree program. Outlook CalDav Synchronizer is Free and Open-Source Software (FOSS), still you can support the project by donating on Sourceforge or directly within the About dialog of our Plugin. Contact us for enterprise support at https://caldavsynchronizer.org/enterprise/contact -
6
FModel
Unreal Engine Archives Explorer
FModel is a freeware application designed to explore Unreal Engine games archives, allowing users to delve into the assets and structures of games developed with Unreal Engine. -
7
PNotes is light-weight, flexible, skinnable manager of virtual notes on your desktop. It supports multiple languages, individual note's settings, transparency and scheduling. Absolutely portable as well - no traces in registry. PNotes.NET edition requires .NET framework 4 Client Profile
-
8
PDFPatcher
A versatile toolkit for PDF manipulation
PDFPatcher (aka “PDF补丁丁”) is a versatile toolkit for PDF manipulation—editing document metadata, bookmarks, page layout, content restrictions, rotation, compression, merging/splitting, image extraction, and more, all within an intuitive interface. Merge/split PDFs or images, preserve or add bookmarks, and set page dimensions. Batch style/color/target changes, regex/XPath search/replace, mid‑page positioning. Modify PDF metadata, page numbers, links, initial view mode, and remove open actions. -
9
Outlook Google Calendar Sync
Sync your Outlook and Google calendars
Offers calendar synchronization between Outlook and Google, including attendees and reminders. Completely free, no install necessary, works behind web proxies and actively developed. Supports all versions of Outlook from 2003 to 2019/Microsoft365 64-bit! Installable and portable options - even runs from a USB thumbdrive. Synchronises items in any calendar folder, including those shared with you. Differential comparison updates only attributes that have changed. Customizable date range to synchronize, past and future. Frequency of automatic syncs, including push-sync from Outlook. Configurable proxy settings, or use Internet Explorer's. Merge new events into existing on the destination calendar. Prompt on deletion of items. Ability to obfuscate custom words for privacy/security. Option to force items as public or private in target calendar. Syncs recurring items properly as a series. -
Full-stack observability with actually useful AI | Grafana CloudBuilt on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
-
10
CSV Lint
CSV Lint plug-in for Notepad++ for syntax highlighting
CSV Lint plug-in for Notepad++ for syntax highlighting, csv validation, automatic column and datatype detecting fixed width datasets, change datetime format, decimal separator, sort data, count unique values, convert to xml, json, sql etc. A plugin for data cleaning and working with messy data files. Use CSV Lint for metadata discovery, technical data validation, and reformatting on tabular data files. It is not meant to be a replacement for spreadsheet programs like Excel or SPSS, but rather it's a quality control tool to examine, verify or polish up a dataset before further processing. -
11
PDFCreator
Converts every printable document to PDF, JPG, PNG, TIF and more
PDFCreator creates professional PDFs with just a few clicks and it's free. PDFCreator comes with many professional features to merge documents, send emails, and more. PDFCreator easily creates PDFs from any Windows program. Use it like a printer in Word, Excel, or any other Windows application. A PDF takes less storage space, and is easier to send with email. Make PDF creator part of your the software suite you have installed on your computer for easy PDF creation. PDFCreator also comes with a COM programming interface that allows to integrate PDFCreator in other applications and a server mode to share PDFCreator on a network. -
12
NASA World Wind is a graphically rich 3D virtual globe for use on desktop computers running Windows. It combines NASA imagery generated from satellites that have produced Blue Marble, Landsat 7, SRTM, MODIS and more.
-
13
PDFsharp
PDFsharp is a .NET library for creating and modifying PDF documents.
PDFsharp moved to https://github.com/empira/PDFsharp PDFsharp is a .NET library for creating and modifying Adobe PDF documents programmatically from any .NET language like C# or VB.NET. PDFsharp defines classes for the objects found in PDF files, so you never have to deal with IDs or references directly. The downloads include MigraDoc Foundation, a .NET library for creating documents on the fly (supports PDF and RTF). PDFsharp is the .NET library that easily creates and processes PDF documents on the fly from any .NET language. The same drawing routines can be used to create PDF documents, draw on the screen, or send output to any printer. MigraDoc Foundation is the .NET library that easily creates documents based on an object model with paragraphs, tables, styles, etc. and renders them into PDF, XPS, or RTF. -
14
Mpp Viewer
MPP Viewer is a viewer for Microsoft Project files
MPP Viewer is a simple viewer for Microsoft Project files. It allows you to Open, Export to excel, Print mpp files. It works well with Project 2016 / 2007 / 2003 / 2000 files. Allows hierarchical view of tasks, resources view and more. MPP Viewer 4.0 Beta 1. Support for viewing Notes 2. Addition of resources column in excel export 3. Addition of % complete column in resources view 4. Upgrade of MPXJ library to use v5.9 5. Bug fixes MPP Viewer 3.0 - New features include 1. Support for viewing custom columns 2. Preview of notes 3. Project properties MPP Viewer 2.0 is more stable version and works well with most of the files 1.0 was not able to work with. NOTE: 1. MPP Viewer 4.0 needs .Net framework 4.6.2 to run. 2. If you are running Windows XP, Please use MPP Viewer 1.0. Since .Net 4.5 is not available for Windows XP -
15
A distributed, peer-to-peer, server-less communication & messaging solution for JAVA (JMS), C++ and .NET applications, integrates with JBoss, WebLogic & WebSphere. Offers guaranteed delivery, security and transactions. Supports TCP, SSL & HTTP protocols.
-
16
The goal for this project is to provide translators to allow for interoperability between applications based on ODF (OpenDocument) 1.1 standards and ECMA Office OpenXML based Office applications.
-
17
Tadween is a powerful multilingual application allowing users to write Arabic in applications that support Unicode but don't fully support Arabic.
-
18
JExcelApi is a java library which provides the ability to read, write, and modify Microsoft Excel spreadsheets. This project mirrors the files on http://www.jexcelapi.org, which has been known to go down on occasion.
-
19
ZedGraph is a class library, user control, and web control for .net, written in C#, for drawing 2D Line, Bar, and Pie Charts. It features full, detailed customization capabilities, but most options have defaults for ease of use.
-
20
-
21
XCharts
A charting and data visualization library for Unity
A charting and data visualization library for Unity. Unity data visualization chart plugin. A UGUIpowerful, easy-to-use, parameter-configurable data visualization chart plug-in. It supports ten built-in charts. A powerful, easy-to-use, configurable charting and data visualization library for Unity. Visual configuration of parameters, real-time preview of effects, and pure code drawing without additional resources. Support ten built-in charts such as line chart, column chart, pie chart, radar chart, scatter chart, heat map, ring chart, candlestick chart, polar coordinate, parallel coordinate and so on. Supports 3D column charts, funnel charts, pyramids, dashboards, water level charts, pictographic column charts, Gantt charts, rectangular tree charts and other extended charts. Line graphs such as line graphs, curve graphs, area graphs, and stepped line graphs are supported. -
22
OpenMiracle
Human way of Accounting
Miracle I The next stepping stone of open miracle Miracle i. which helps in showing you the graphical representation of the company status. A unique software with unique features in it and also to be the first in market. Miracle irepresents entire openmiracle modules by projecting various graphical representaions with most idealistic view. Financial statements can be easily analyzed using pie-charts,user interface is more flexible now with the help of coloring system and bar-chart rating. An over all statistic view of a company in a single click!! Miracle Skate..! Fed up of data base migration ?!!Try Miracle Skate Miracle Skate helps to migrate data from Tally accounting software to Open Miracle without any loss of data and it helps the customer to enjoy the features of latest business accounting software-Open Miracle. -
23
Random File Picker
Choose (and open) random files from random directories.
Random File Picker can quickly choose and open random files from a set of directories. Files can be filtered so you can for example look only for images. The directories that you supply to RFP will be scanned for sub-directories (first a directory is chosen, then a file from it). In short it is a tool that makes decisions in your place. Not sure what wallpaper to choose for today? Let it decide for you. Not sure what movie to watch? It can open a random one in just a few clicks. -
24
OSHMI - Open Substation HMI
SCADA HMI for substations, IoT and automation applications
Now with IEC61850 support! This project combines existing open source projects and tools to create a very capable, mobile and cloud-friendly HMI system that can rival proprietary software. This approach makes it possible to join forces of each project (Chromium, SVG/HTML5, PHP, Lua, SQLite, Inkscape, Lib61850, OpenDNP3, Nginx, Vega, PostgreSQL, Grafana,…) to achieve a great set of open, evergreen, modular and customizable tools for building great HMIs for automation projects. This is not a toy project! It's been actually used in dozens of substations up to 230kV level and also in control centers with configurations up to 70.000 tags. Feel free to ask questions in the "Discussion" section. Help sponsoring OSHMI here https://github.com/sponsors/riclolsen. >>> Have a look also at my new SCADA project here: https://github.com/riclolsen/json-scada -
25
Windows X App Remover
Remove Modern UI Apps from Windows Installations or Images
Remove Modern UI (Metro) Apps from Windows. With the Windows X App Remover, you can easily read out which Apps are installed and remove the ones you do not want anymore. -News, 14rd December 2015- Version 1.02 is out. Some Apps can't be removed, because Microsoft does not allow it ("System Apps"). This is now correctly handled by the program. If you encounter any bugs or you miss anything, feel free to contact me!
