List of the Top 19 HTML Editors for C# in 2025

An exceptionally sophisticated text editor tailored for programming, markup, and general writing tasks. The Goto Anything feature allows for swift navigation to files with minimal keystrokes, enabling you to jump to symbols, lines, or particular words with ease. This editor empowers you to execute multiple edits at once, eliminating the need to apply the same change repeatedly. Thanks to its multiple selections feature, you can seamlessly alter several lines simultaneously, rename variables effortlessly, and manage files far more efficiently than you might have imagined. The Command Palette unlocks access to less commonly utilized features, including sorting, syntax tweaks, and indentation changes. By simply typing a few keys, you can precisely locate what you require without the frustration of sifting through menus or memorizing intricate key combinations. Furthermore, Sublime Text offers a powerful Python API that facilitates the creation of plugins to augment its built-in features. With the convenience of installing Package Control via the command palette, users can easily tap into a vast array of community-developed packages that further enhance the editor's capabilities. This makes it not just a functional tool, but an essential asset for anyone aiming to optimize their coding or writing workflow. Indeed, its versatility and user-friendly design contribute to making it a preferred choice among developers and writers alike.

Notepad++ is a cost-free substitute for the standard Notepad, specifically created for modifying source code in multiple programming languages. It runs seamlessly within the Microsoft Windows environment and adheres to the GNU General Public License. Built on the advanced Scintilla editing framework and developed in C++, it utilizes the pure Win32 API and Standard Template Library (STL) to enhance its performance speed and minimize file size. By streamlining various processes while ensuring ease of use, Notepad++ aims to play a part in lowering global carbon dioxide emissions. Its efficiency enables computers to consume less CPU power, leading to operations at reduced energy levels, which contributes to decreased power usage and supports a more sustainable future. This innovative approach highlights the potential of software development to harmonize with environmental sustainability efforts while providing robust editing capabilities.

Apache NetBeans is a robust open-source Integrated Development Environment (IDE) that facilitates application development across various programming languages, including Java, JavaScript, PHP, HTML5, and C/C++. Known for its modular architecture, NetBeans offers developers an array of tools and functionalities tailored for crafting desktop, mobile, and web applications. It features sophisticated code editing, debugging, and profiling capabilities, along with an integrated visual GUI builder that streamlines the design of user interfaces specifically for Java applications. Furthermore, the IDE integrates effortlessly with version control systems such as Git, SVN, and Mercurial, thereby fostering collaboration within development teams. As a project under the auspices of the Apache Software Foundation, NetBeans undergoes continuous enhancement by a committed community, ensuring its capabilities remain current and effective. This ongoing development makes NetBeans not only a reliable tool but also a highly flexible option for developers in various sectors. The combination of its comprehensive features and strong community support enables NetBeans to appeal to both beginners and experienced developers, who appreciate its versatility and user-friendly design. Ultimately, the IDE's commitment to innovation ensures it remains a relevant choice in the ever-evolving landscape of software development.

Atom is a contemporary text editor designed for the digital age, built on the Electron framework and influenced by the features we love in our favorite editing applications. It prioritizes extensive customization while keeping its default configuration user-friendly. As an essential part of a developer's toolkit, a text editor works in tandem with other tools rather than operating independently. With the built-in GitHub package, managing your Git and GitHub workflows is effortless within Atom—allowing you to create branches, stage and commit changes, push and pull updates, resolve merge conflicts, and review pull requests, all from inside the editor. This package is pre-installed, so you can dive right in! Atom supports a range of operating systems, such as OS X, Windows, and Linux, promoting broad accessibility. You can quickly search for and install new packages or create your own directly from the editor, enhancing its versatility. Moreover, Atom boosts your coding productivity with an intelligent autocomplete feature and allows you to browse and open individual files, entire projects, or multiple projects in one window, making it a multifaceted choice for developers. With its user-centric design, Atom aims to streamline the coding process, catering to both beginners and seasoned developers, ultimately fostering a more efficient coding environment. This adaptability ensures that no matter your skill level, you can find the tools and features that best suit your workflow.

This premium HTML and text editing software tailored for Mac users provides sophisticated features that enhance text editing, searching, and manipulation processes. Renowned for its outstanding efficiency and intuitive design, this editor has become a preferred choice for many professionals in the field. Its seamless functionality allows users to streamline their workflows effortlessly.

Geany is a powerful, efficient, and lightweight text editor tailored for programmers, packed with features that boost productivity without hindering the user experience. It runs seamlessly on Linux, Windows, and MacOS, offering support for over 40 languages and natively accommodating more than 50 programming languages. The creation of Geany was inspired by the need for a versatile, user-friendly, and cross-platform IDE/editor that merges flexibility with robust capabilities. While there are many editors on the market, few successfully address the broad spectrum of user needs that Geany fulfills. Distributed under the GPL v2 license, it empowers users to modify and enhance the software, fostering a community where everyone can reap the benefits of these improvements. Geany's highly customizable features, such as its unique color themes (known as Geany Themes) and the option to introduce new file types, cater to a wide array of user tastes. Users also enjoy a multitude of settings that allow for deep personalization, ensuring that their specific requirements are met, particularly for popular programming languages such as C, Java, PHP, HTML, and JavaScript. Ultimately, Geany serves as an attractive solution for developers who seek a dependable tool that skillfully balances simplicity with extensive functionality, making it a top choice in the world of code editors. Moreover, the ongoing development and active community support further enhance its appeal, ensuring that it continues to evolve with the needs of modern programmers.

Kate is a powerful text editor that streamlines the management of text files, making the process of viewing and editing incredibly efficient. It supports the simultaneous handling of multiple files, featuring both tabbed and split viewing options, while also offering a variety of plugins, including an integrated terminal for running console commands, advanced search and replace functionality, and a preview option for visualizing content in formats like MD, HTML, and SVG. With syntax highlighting for over 300 programming languages, Kate significantly improves code readability, catering to a vast array of coding styles. The editor also excels in recognizing bracket structures, which helps users navigate complex code hierarchies with ease. Furthermore, it includes real-time spellchecking to ensure that your writing is refined before publication. The ability to open multiple files at once through split views, combined with a project sidebar for straightforward navigation of directory structures and intelligent tabs for quick access to recently opened files, enhances overall productivity. Ultimately, Kate serves as more than just a simple editor; it creates an integrated environment that is beneficial for both developers and writers, making the writing and coding process not only easier but also more enjoyable.

QuickEdit is an advanced text editor crafted for Android devices, providing exceptional functionality for both smartphones and tablets. This powerful notepad includes numerous enhancements, featuring a code editor that supports syntax highlighting across more than 40 programming languages. It ensures remarkable efficiency and delivers real-time feedback, even when working with large text files that surpass 10,000 lines. Users can effortlessly undo and redo edits without limitations, manage line indents with ease, and experience smooth scrolling in both vertical and horizontal orientations. The application enables users to navigate directly to a specific line number and automatically identifies character encoding for user convenience. Additionally, it provides a preview option for HTML and Markdown documents, supports editing of system files on rooted devices, and offers quick access to recently opened or added files. Moreover, QuickEdit accommodates both light and dark themes, catering to different user preferences. With its extensive array of features, QuickEdit stands out as an essential tool for anyone seeking a comprehensive text editing experience on their Android devices while ensuring a user-friendly interface. As a result, it elevates the standard of mobile text editing applications significantly.

For nearly thirty years, UltraEdit has been the go-to text editor for more than 2 million users, including numerous Fortune 100, 500, and 1000 companies. Renowned for its efficiency, UltraEdit excels in processing large files and is compatible with a wide array of syntax and programming languages. Commonly dubbed the "Swiss Army knife" of text editors, UltraEdit is an invaluable resource for professionals spanning various industries and roles. Its capabilities extend to tackling numerous challenges in text editing, such as project management and software development, while also adeptly managing large file edits, remote access (FTP/SFTP), data organization, column and block editing, comprehensive file searches, and text reformatting. Available on Windows, Mac, and Linux platforms, UltraEdit is backed by a dedicated team of developers and customer support staff based in the USA, ensuring users receive top-notch assistance. This robust support network, combined with its extensive features, solidifies UltraEdit's position as a leading tool in the world of text editing.

Discover a highly adaptable code editor that supports over 60 programming languages across nine distinct platforms. Effortlessly build or compile your projects, and if you encounter an error, simply double-click on the message in the Build window to jump directly to the corresponding line of code. Each error and warning is marked with a clear icon in the left margin, allowing for quick identification. Furthermore, the overview bar adjacent to the vertical scrollbar visually indicates errors and warnings, reflecting their location relative to your current view in the document. To streamline your workflow, you can either drag the scrollbar slider to a specific mark or click on it to quickly bring that section into focus. SlickEdit also includes an integrated debugging tool that provides an intuitive interface for various debuggers. You can easily set breakpoints, step through code execution, inspect the stack, and analyze variables and their members, encompassing all the core functionalities expected from a debugging tool. Moreover, SlickEdit supports debugging across a wide range of languages, such as GNU C/C++, Java, WinDbg, Clang C/C++ LLDB, Google Go, Python, Perl, Ruby, PHP, XCode, Scala, C# with Mono, Visual Basic with Mono, and Android JVM/NDK. This extensive support not only enhances its versatility but also positions SlickEdit as an indispensable resource for developers working in varied environments, ensuring a smooth and efficient coding experience. Such comprehensive capabilities make it an essential asset for programmers tackling diverse projects and languages.

Arachnophilia acts as a platform for creating web pages and simultaneously operates as a multifunctional programming utility. This innovative software is crafted with the Java programming language, allowing users to enhance their coding skills while developing websites.

The source code for Microsoft's Visual Studio Code (VSCode) is released as open source under the MIT license, but the version available for download operates under a different license that does not qualify as free and open-source software (FLOSS) and includes telemetry functionalities. In response to this, the VSCodium project was established, enabling users to bypass the complexities of building from source by providing ready-to-use binaries. This initiative employs unique build scripts that retrieve Microsoft's VSCode repository, perform the required build operations, and then upload the resulting binaries to GitHub releases, ensuring that they are licensed under the MIT license and come without telemetry features. For Mac OS X Mojave users, if you see the warning “App can’t be opened because Apple cannot check it for malicious software” when attempting to open VSCodium for the first time, you can simply right-click the application and choose Open, a step that is only necessary during your initial launch on that particular operating system. Furthermore, extensive documentation is accessible for those wishing to switch from Visual Studio Code, along with resources to help troubleshoot any issues that may come up while using VSCodium. This comprehensive support guarantees that users are equipped with all the necessary information for a seamless and enjoyable experience. Ultimately, this effort emphasizes the importance of user choice and transparency in software usage.

Nvu provides a thorough web authoring platform designed for users across Linux Desktop, Microsoft Windows, and Macintosh, positioning itself against well-known applications like FrontPage and Dreamweaver. Its intuitive interface, pronounced "N-view" to signify a "new view," allows individuals to easily create web pages and handle their sites without any prior technical knowledge or HTML expertise. Both Nvu and its community-driven alternative, KompoZer, are free and open-source, giving users the ability to find help if they run into any issues. While Nvu 1.0 debuted in June 2005 and remains the last official version available on most download sites, it does not represent the most current or effective version of the software. An unofficial update known as "KompoZer" has been released to fix several major bugs found in NVU 1.0, although it may not resolve every problem. If you find NVU 1.0 to be working well for your needs, you might prefer to stick with it; however, if you encounter challenges, exploring KompoZer could provide some enhancements to improve your web development experience. Many users value the community support and continuous development that KompoZer offers, making it a worthwhile option for those aiming to boost their website management skills. Ultimately, whether you choose Nvu or KompoZer, both programs cater to a wide range of users looking to build and maintain their online presence effectively.

Take your work with you wherever life leads, whether you’re waiting for a bus or relaxing on a sunlit shore. With DroidEdit, you can effortlessly edit your files directly from the cloud, as it supports a range of platforms including Dropbox, Drive, Box, (S)FTP servers, and Git, with more file providers expected soon. It features syntax highlighting for nearly 200 programming languages, making it an excellent tool for developers of all kinds. When an urgent request for code changes arises, there’s no need to hurry back to your desk; just pull out your mobile device and make the updates you need while on the move. You can check out, edit, commit, and push changes straight from your smartphone or tablet, ensuring that productivity follows you wherever you go. Developers have varied tastes; while some prefer dark themes, others lean towards bright white backgrounds. With numerous themes available for syntax highlighting, you can easily select one that fits your aesthetic or even create your own if that suits you better. Furthermore, enhance your coding efficiency by utilizing Emmet to convert simple snippets into complete HTML code automatically. This adaptability empowers you to code effectively while enjoying the freedom that comes with mobility, simplifying the process of staying organized and on schedule with your projects. Embrace the seamless integration of coding and travel, and redefine how you manage your tasks in the digital age.

CodeRunner is a streamlined and effective programming text editor and integrated development environment (IDE) specifically designed for macOS users. This adaptable tool accommodates a wide variety of popular programming languages, executing them with remarkable speed. It natively supports 25 languages, but users can effortlessly add more through terminal commands. With over 200 syntax modes available, combined with an impressive suite of advanced editing features and thoughtful design components, CodeRunner is poised to be your go-to editor for various text file types. Its code completion feature is exceptional, employing sophisticated text matching that transcends basic single-word suggestions. The innovative extra-fuzzy search algorithm enables quick navigation through potential completions amongst thousands, enhanced by useful documentation snippets and a smart ranking system to prioritize results. Moreover, instead of filling your code with print statements for debugging, you can utilize CodeRunner's extensive built-in debugging tools, which enable you to set breakpoints and step through your code with ease. The user-friendly interface, paired with powerful functionalities, makes CodeRunner suitable for both beginners and experienced developers, ensuring that everyone can benefit from its capabilities. Whether you're writing simple scripts or complex applications, CodeRunner's versatility and efficiency will make your coding experience more enjoyable.

Maqetta stands as a free and open-source initiative aimed at enabling WYSIWYG visual design of HTML5 user interfaces. Developed entirely in HTML, the Maqetta application runs seamlessly in web browsers, eliminating the need for any extra plugins or software installation. It is distributed under a commercially-friendly open-source license, granting users the freedom to download the source code, host it on their servers, tailor it to meet their individual needs, and contribute improvements back to the community. The HTML pages produced by Maqetta generally support all major web browsers, including Internet Explorer, although the degree of compatibility may depend on the chosen JavaScript toolkit and specific coding techniques. To utilize Maqetta effectively, users must have an up-to-date version of one of the approved browsers that provide the essential HTML5 functionalities that the application relies on. This project is built on a foundation of open standards technologies, ensuring that developers have the accessibility and flexibility they need. Furthermore, this dedication to open standards fosters a collaborative atmosphere where developers are encouraged to innovate and exchange their enhancements, enriching the overall project. In essence, Maqetta not only simplifies the creation of user interfaces but also promotes community-driven development and shared learning.

Buffer Editor is a powerful tool tailored for programming and text manipulation, enabling users to efficiently develop software, analyze code, or take notes while on the go. Join a vast network of developers who trust Buffer Editor for its effective, advanced, and high-performance coding features available on mobile devices. The application supports the viewing of multiple file formats that work with iOS, including images, PDFs, videos, and documents. You can easily switch between your current files and manage several terminal sessions within tabs to boost your productivity. Furthermore, it offers the ability to preview your projects either locally or directly on your server, facilitating quick modifications and testing. This combination of features makes Buffer Editor an indispensable app for anyone looking to enhance their coding experience while mobile.

jEdit is a prominent text editor tailored for programmers, with a development background that spans numerous person-years, particularly due to the extensive contributions made through its plugins. This powerful editor offers features that outshine many expensive alternatives while remaining completely free and open-source under the GPL 2.0 license. It comes equipped with a built-in macro language and a flexible architecture that allows for easy plugin integration, with countless macros and plugins available for download. Users can conveniently manage their plugins via the "plugin manager" feature, which simplifies the installation process. Furthermore, jEdit accommodates a broad range of character encodings, including UTF-8 and Unicode, enhancing its adaptability. The editor is also highly configurable and customizable, encompassing both fundamental and advanced functionalities one would expect from a contemporary text editor. This versatility ensures that jEdit caters to the varied requirements of its user base. Consequently, jEdit emerges as an enticing option for developers looking for a powerful yet user-friendly tool to assist them in their programming endeavors, making it a staple in the realm of software development.

ConTEXT is a compact yet efficient text editor designed specifically for software developers, featuring support for unrestricted file sizes and an unlimited number of open files. It boasts advanced syntax highlighting for a variety of programming languages including Delphi/Pascal and 80x86 assemblers, as well as Java, JavaScript, Visual Basic, Perl/CGI HTML, SQL, Python, PHP, and Tcl/Tk. The editor allows users to customize their syntax highlighting, create project workspaces, and integrate compilers seamlessly. Additionally, it offers multi-language support and a host of other functionalities that enhance the coding experience. Overall, ConTEXT stands out as a versatile tool for developers seeking an effective editing solution.