Open Source C# Text Editors
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C# Text Editors
View 77 business solutionsBrowse free open source C# Text Editors and projects below. Use the toggles on the left to filter open source C# Text Editors by OS, license, language, programming language, and project status.
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Secure File Transfer for Windows with Cerberus by RedwoodCerberus supports unlimited users and connections on a single IP, with built-in encryption, 2FA, and a browser-based web client — all deployable in under 15 minutes with a 25-day free trial.
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Go From AI Idea to AI App FastAccess Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
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VSCodium
binary releases of VS Code without MS branding/telemetry/licensing
Microsoft’s vscode source code is open source (MIT-licensed), but the product available for download (Visual Studio Code) is licensed under this not-FLOSS license and contains telemetry/tracking. The VSCodium project exists so that you don’t have to download+build from source. This project includes special build scripts that clone Microsoft’s vscode repo, run the build commands, and upload the resulting binaries for you to GitHub releases. These binaries are licensed under the MIT license. Telemetry is disabled. If you want to build from source yourself, head over to Microsoft’s vscode repo and follow their instructions. VSCodium exists to make it easier to get the latest version of MIT-licensed VSCode. Please note that some Visual Studio Code extensions have licenses that restrict their use to the official Visual Studio Code builds and therefore do not work with VSCodium. -
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A plugin which uses Exuberant Ctags to parse either only the currently activated source file or multiple files of so-called sessions. The results are shown and can be browsed in a treeview inside of a dockable window.
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Notepads
A modern, lightweight text editor with a minimalist design
I have been waiting long enough for a modern Windows 10 notepad app to come before I decided to create one myself. Don’t get me wrong, Notepad++, VS Code, and Sublime are great text editors. I have used them all and I will continue to use them in the future. However, they are either too heavy or look less appealing. There are times that I just wanted to use Windows Notepad for things like writing notes or editing config files. So I decided to create a win32 notepad replacement here and try to give it a modern look and feel. Most importantly, it has to be blazingly fast and appeal to everyone. -
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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.
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OneNote Md Exporter
ConsoleApp to export OneNote notebooks to Markdown formats
OneNote Md Exporter is a console application running on Windows that exports your OneNote notebooks in different markdown formats. Evaluate or migrate to an alternative Knowledge Management Software like Joplin, Obsidian or other software based on Markdown format. Backup your OneNote Notebooks in an interoperable and open file format. -
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Virastyar
Virastyar is an spell checker for low-resource languages
Virastyar is a free and open-source (FOSS) spell checker. It stands upon the shoulders of many free/libre/open-source (FLOSS) libraries developed for processing low-resource languages, especially Persian and RTL languages Publications: Kashefi, O., Nasri, M., & Kanani, K. (2010). Towards Automatic Persian Spell Checking. SCICT. Kashefi, O., Sharifi, M., & Minaie, B. (2013). A novel string distance metric for ranking Persian respelling suggestions. Natural Language Engineering, 19(2), 259-284. Rasooli, M. S., Kahefi, O., & Minaei-Bidgoli, B. (2011). Effect of adaptive spell checking in Persian. In NLP-KE Contributors: Omid Kashefi Azadeh Zamanifar Masoumeh Mashaiekhi Meisam Pourafzal Reza Refaei Mohammad Hedayati Kamiar Kanani Mehrdad Senobari Sina Iravanin Mohammad Sadegh Rasooli Mohsen Hoseinalizadeh Mitra Nasri Alireza Dehlaghi Fatemeh Ahmadi Neda PourMorteza -
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Markdown Monster
An extensible Markdown Editor, Viewer and Weblog Publisher for Windows
Markdown Monster is a powerful, yet easy-to-use Markdown editor with syntax highlighting and sophisticated and fast edit features. A collapsible, synced, live preview lets you see your output as you type and scroll. Easily embed or paste images, links, tables and code using raw markup or our smart UI helpers to simplify many operations with a few keystrokes or a click or two. Paste images from the clipboard or drag and drop from Explorer or our built-in file browser. Inline spell-checking and word counts keep your content streamlined. You can export Markdown to PDF or HTML on disk or copy Markdown selections as HTML to the clipboard. The HTML preview can display syntax-colored code snippets for most coding languages. Choose from light or dark app themes, and individual and fully customizable preview themes. Use the built-in folder browser to open, manage and drag files into content, use the document outline to quickly jump through content, or use our shell integration. -
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LMG2Shruti is a free non unicode to unicode font converter. It converts the LMG Arun font to Gujarati unicode Shruti font.
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CSV Quick Viewer
CSV Quick Viewer
CSVQuickViewer is a Windows application for viewing and analyzing delimited text files. It supports CSV, tab-delimited, pipe-delimited, and other custom formats, automatically detecting delimiters, encoding, quoting, and escaping. The application handles malformed or inconsistent files, skips headers and comments, and highlights problematic data. Users can switch between typed and text values, realign columns automatically, filter, sort, hide, and reorder columns, and copy data to Excel or Word with value types preserved. Compressed files in ZIP and GZip formats can be opened directly. CSVQuickViewer runs without administrative rights, provides column insights, and allows exporting filtered data, offering a fast, reliable, and local solution for inspecting structured text data. Ideal for analysts, developers, and support teams working with large or messy data files. -
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AutoText
Text expander(auto-type) application
AutoText is a text expander(auto-typer) application that can minimize time that you spent typing phrases that your often use. You can bind an abbreviation(autotext) to some text snippet, phrase or sentence and that text will be automatically typed by AutoText each time you type the abbreviation. Keyboard keys press/hold/toggle is supported by using macros. AutoText works in any Windows program. -
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The goal of this tool is to simplify and accelerate the process of creating bookmarks for DjVu and PDF documents. You can see additional information on the project page.
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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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FCKeditor
FCKeditor (retired)
FCKeditor is the previous version of CKEditor and has been discontinued after version 2. The new CKEditor is redesigned from the ground up, offering more WYSIWYG text editing features, enhanced security and better integration. Don’t force yourself with retro FCKeditor. Switch to the new, cool CKEditor at ckeditor.com -
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The main goal of the Office Binary (doc, xls, ppt) Translator to Open XML Project is to create software tools, plus guidance, showing how a document written using the Binary Formats (doc, xls, ppt) can be translated to Office Open XML.
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Unicode Converter
All in one Text, Decimal, and Unicode Converter as you type.
Unicode Converter is an open source software for converting Text to Unicode and decimal and vice versa while you type. No clicks or convert button! Latest source code: https://github.com/ahmed-fathy/unicode-converter Conversion Options: Text -> Unicode and Decimal Unicode -> Text and Decimal Decimal -> Text and Unicode *Smart settings: The settings take effect directly after you change it and will be saved for you and applied in next runs. Formatting options: Unicode and decimal perfix and postfix to get your desired output, such as \u0001  0001 etc... -
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StructuredXmlEditor
An editor for structured xml, providing a graphical interface
An editor for structured xml, providing a graphical interface. This allows you to specify the format of the xml file using a definition file. This definition is then converted into a graphical editor that allows simple editing. Click 'create new' to be led through the process of creating the project file. It will prompt you to select the asset's root folder, then a folder to store definitions in. You can also select a premade ProjectRoot.xml file to use instead. Pick any number of files of the data type you want to generate data for then click open. This will show you a message box with the path to the saved definition. Each data type in the tool exists in two parts. The definition and the item. The definition describes the general parameters of the type (e.g. name, default value, min, max, etc). The item is a single instantiation of that definition. The item contains the current editted values, children and various changeable parameters. -
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chmProcessor: Word/HTML to CHM converter
MS Word / HTML to CHM / Web Help converter
A tool to generate compiled help files (CHM) and Java Help files from MS Word or HTML files. It splits the document on different topics pages by the "titles" sections. It can too generate a web site, a PDF and a XPS with the help content. -
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AvalonEdit
The WPF-based text editor component used in SharpDevelop
AvalonEdit is the name of the WPF-based text editor in SharpDevelop 4.x "Mirador" and beyond. It is also being used in ILSpy and many other projects. AvalonEdit is targeting net6.0-windows and net462 TFMs. Because of net6.0-windows, you must have the .NET 6.0 SDK installed on your machine. Visual Studio 2022 Community and up is required for working with the solution (global.json will select the proper SDK to use for building for you). -
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The Punjabi Computing Resource Centre holds resources (specifically articles, programs and fonts) to support the use of the Punjabi language using Unicode Gurmukhi. It also hosts a forum for language debate and technical support.
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Notepad X is an alternative open source text editor for Microsoft Windows, with a lot of customization options created to help users managing text documents featuring tab navigation.
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PDF Clown
General-Purpose PDF Library for Java and .NET
PDF Clown is a general-purpose Java and .NET library for manipulating PDF files through multiple abstraction layers, rigorously adhering to PDF 1.7 specification (ISO 32000-1). This project aims to provide a universal access to PDF files (creation, reading, editing, rendering...) through an accurate and elegant object-oriented API. * Features: http://pdfclown.org/overview/features/ * Overview: http://pdfclown.org/overview/architecture/ * Website: http://pdfclown.org/ * Blog: http://www.pdfclown.org/blog/ * Twitter: https://twitter.com/PDFClown -
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gemini-editor
Custom script editor for RPG Maker XP, VX, and VXA
Gemini is a custom-built script editor, made using C# and .NET, for working on RPG Maker XP, VX, and VXA projects. It features enhanced IDE features that cannot be found in the default editors. -
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TouchPad Handwriting
Handwriting recognition on a notebook computer.
With the Tablet PC components of Windows and the API provided by Synaptics touchpad driver, we can easily perform handwriting recognition on a notebook computer. -
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The “Save as DAISY XML” add-in was created through an open source project with Microsoft, Sonata Software Ltd. and the Digital Accessible Information System (DAISY) Consortium and can be downloaded on sourceforge.
