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

  • Get Avast Free Antivirus | Your top-rated shield against malware and online scams Icon
    Get Avast Free Antivirus | Your top-rated shield against malware and online scams

    Boost your PC's defense against cyberthreats and web-based scams.

    Our antivirus software scans for security and performance issues and helps you to fix them instantly. It also protects you in real time by analyzing unknown files before they reach your desktop PC or laptop — all for free.
    Free Download
  • 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
  • 1
    VSCodium

    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.
    Downloads: 36 This Week
    Last Update:
    See Project
  • 2
    Notepads

    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.
    Downloads: 33 This Week
    Last Update:
    See Project
  • 3
    MudBlazor

    MudBlazor

    Do more with Blazor, utilizing CSS and keeping Javascript to a minimum

    Trusted by thousands of users, from hobby developers to large enterprises. Use MudBlazor to rapidly build amazing web applications without leaving your loved C# language and toolchain. We bring together everything that's required to build amazing Blazor applications that scale from desktop to mobile. Apart from the library itself we also provide templates, a learning platform, theme manager, demo and example projects as well as an online code editor integrated with our documentation and issue tracking. With more to come. We help companies build amazing apps in record time and let them focus on their business instead of buttons, MudBlazor is battle-tested and one of the fastest-improving platforms, and much more. We started MudBlazor with a simple promise, to empower the developer and fully take advantage of what Blazor offers. With MudBlazor you can create exceptional apps without the burden of mastering HTML, CSS and JS and focus your skillset on C#.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 4
    AvaloniaEdit

    AvaloniaEdit

    Avalonia-based text editor (port of AvalonEdit)

    This project is a port of AvalonEdit, a WPF-based text editor for Avalonia.
    Downloads: 1 This Week
    Last Update:
    See Project
  • Picsart Enterprise Background Removal API for Stunning eCommerce Visuals Icon
    Picsart Enterprise Background Removal API for Stunning eCommerce Visuals

    Instantly remove the background from your images in just one click.

    With our Remove Background API tool, you can access the transformative capabilities of automation , which will allow you to turn any photo asset into compelling product imagery. With elevated visuals quality on your digital platforms, you can captivate your audience, and therefore achieve higher engagement and sales.
    Learn More
  • 5
    CNote

    CNote

    A Fast Lightweight Note & Code Editor

    CNote is a fast and lightweight note/code editor, it can help you quickly create/edit notes or write code. it has all the important features you need in one place, With Live Html Preview, Python Code Execution, and more, you can find the changelog at the Github repo.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 6
    A simple free Actionscript and flex code editor for Linux built with Mono and Gtk# The title is a working title so any name suggestion will be accepted gratefully.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    AvalonEdit

    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).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    Code editor for a lot of languages like mips, c#, c++, xml, html,...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Fazed 1.2.1

    Fazed 1.2.1

    A simple phishing files generating tool

    Fazed is a simple phishing tool which allows you to generate html and php files which are customized by your redirected link and access code. Fazed is based on .NET 3.5 and requires minimum of 800x600 resolution. Fazed has six language options which allows locals of the language's respective areas to use the application with ease. The implemented languages are Russian, English, French, Chinese (simplified), Urdu and Sindhi. It is expected to see more language implementations in the future update of Fazed. With the increasing number of downloads and popularity, the more new languages will be implemented. The project is expected to see a major turn in the summer 2017. The new features might be custom code editor, more phishing files options and enhanced user interface with settings option to disable or enable various functions including tooltips etc...
    Downloads: 0 This Week
    Last Update:
    See Project
  • Powering the best of the internet | Fastly Icon
    Powering the best of the internet | Fastly

    Fastly's edge cloud platform delivers faster, safer, and more scalable sites and apps to customers.

    Ensure your websites, applications and services can effortlessly handle the demands of your users with Fastly. Fastly’s portfolio is designed to be highly performant, personalized and secure while seamlessly scaling to support your growth.
    Try for free
  • 10
    A handy program to help anyone create a website with ease! features include, code editor/html preview screen, quick click easy add html tag buttons, load,save,quick save, and new document features. visit XSkullsGames.com for more programs/games!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    Oracle PL/SQL Code Editor. Allows you to connect to any Oracle Database, browse the database objects and edit and debug PL/SQL code with syntax highlighting. The main focus is for it to be some kind of a PL/SQL IDE, free to download, use, modify!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    QPyDesk

    QPyDesk

    Code editor and real-time QR code generator for QPython

    QPyDesk is a code editor, and real-time QR code generator for QPython. It is a Python code editor with syntax highlighting that also generates the QR code that represents said code in real time. This application also allows you to print the generated QR code to distribute the created application. However, because QR codes have a limited storage capacity, if the code is very long, QPyDesk creates a QR code that is only valid while the application is running, that is, the QR code generated in this case is useless for distribute the application, but it is still useful to check the operation of the script while it is encoded from the computer. When these circumstances occur, QPyDesk notifies the user and disables the print button. QPyDesk gives dynamism during the development of applications for QPython / Android, since it takes advantage of the QPython QR code reader to work comfortably from the computer for the android device.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    RoslynPad

    RoslynPad

    A cross-platform C# editor based on Roslyn and AvalonEdit

    A cross-platform C# editor based on Roslyn and AvalonEdit. RoslynPad is also available as NuGet packages which allow you to use Roslyn services and the editor in your own apps.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14

    View Builder

    View Builder is software that allows you to quickly create webpages

    View Builder is software that will allow you to visually or manually build webpages. View Builder also allows you to edit the html, and css of a web page. I have been developing it using Visual Studio 2012. View Builder is written using C# and is currently in the development stage with an installation package and visual studio project files included.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    ZCore is a set of Creative Studio for designing, testing, building ... solutions based on .NET framework. Contains UML designs tools, code editor & build tools, debug & test tools, user interface create tools ...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    xacc.ide is a opensource IDE aimed at mainly .NET development. It has a code editor written in 100% C# code, which is faster than most commercial offerings.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • Next
Want the latest updates on software, tech news, and AI?
Get latest updates about software, tech news, and AI from SourceForge directly in your inbox once a month.