Showing 584 open source projects for "html editor"

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  • 1
    HTML Anything

    HTML Anything

    The agentic HTML editor

    HTML Anything is an agentic HTML editor that helps local AI agents generate polished HTML artifacts across multiple content formats. It is built for workflows where the user describes a desired output and the agent writes the HTML that can then be previewed, edited, and shipped. The project supports a wide surface area, including magazine layouts, decks, posters, social posts, prototypes, and data-oriented artifacts.
    Downloads: 1 This Week
    Last Update:
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  • 2
    Editor.js

    Editor.js

    A block-style editor with clean JSON output

    Editor.js is an open-source text editor offering a variety of features to help users create and format content efficiently. It has a modern, block-style interface that allows users to easily add and arrange different types of content, such as text, images, lists, quotes, etc. Each Block is provided via a separate plugin making Editor.js extremely flexible. Editor.js outputs clean JSON data instead of heavy HTML markup.
    Downloads: 5 This Week
    Last Update:
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  • 3
    Phoenix Code Editor

    Phoenix Code Editor

    Phoenix is a modern open-source Code Editor for the web

    Phoenix is a modern open-source and free software code editor for the web, built for the browser.
    Downloads: 10 This Week
    Last Update:
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  • 4
    lavish-axi

    lavish-axi

    HTML is the new markdown. Lavish is the new editor for HTML artifacts

    Lavish AXI is a local-first editor for reviewing and refining HTML artifacts produced by AI agents. It opens generated HTML in a browser so users can inspect the actual interactive result instead of relying on screenshots or long text descriptions. Users can pinpoint elements, select text ranges, annotate content, and send feedback directly back to the agent. Rendered Mermaid diagrams can also be edited as whiteboards.
    Downloads: 6 This Week
    Last Update:
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  • 5
    Trix

    Trix

    A rich text editor for everyday writing

    A rich text editor for everyday writing. Compose beautifully formatted text in your web application. Trix is an editor for writing messages, comments, articles, and lists—the simple documents most web apps are made of. It features a sophisticated document model, support for embedded attachments, and outputs terse and consistent HTML. Trix is an open-source project from Basecamp, the creators of Ruby on Rails.
    Downloads: 10 This Week
    Last Update:
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  • 6
    MarkText

    MarkText

    A simple and elegant markdown editor

    MarkText is an MIT licensed open source project, and the latest version will always be downloadable for free from the GitHub release page. MarkText is still in development, and its development is inseparable from all sponsors. Realtime preview (WYSIWYG) and a clean and simple interface to get a distraction-free writing experience. Support CommonMark Spec, GitHub Flavored Markdown Spec and selective support Pandoc markdown. Markdown extensions such as math expressions (KaTeX), front matter...
    Downloads: 750 This Week
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  • 7
    Electron

    Electron

    Build cross-platform desktop apps with JavaScript, HTML, and CSS

    Electron is an open-source framework that uses Node.js runtime and the Chromium web browser thereby allowing you to build apps with JavaScript, HTML, and CSS. It is compatible with Mac, Windows and Linux and comes with convenient features such as automatic updates, app crash reporting, debugging and profiling and more. It takes care of the hard parts so you can focus on the core of your app. Initially developed for the Atom editor, Electron is now the framework of choice for dozens of popular desktop apps including Microsoft's Visual Studio Code.
    Downloads: 89 This Week
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  • 8
    Markdown Monster

    Markdown Monster

    An extensible Markdown Editor, Viewer and Weblog Publisher for Windows

    ...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.
    Downloads: 1 This Week
    Last Update:
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  • 9
    Geany

    Geany

    A fast and lightweight IDE

    Geany is a powerful, stable and lightweight programmer's text editor that provides tons of useful features without bogging down your workflow. It runs on Linux, Windows and macOS, is translated into over 40 languages, and has built-in support for more than 50 programming languages.
    Downloads: 45 This Week
    Last Update:
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  • 10
    Quill

    Quill

    Your powerful rich text editor

    Quill is a powerful, free and open source WYSIWYG editor made for the modern web. Equipped with modern architecture and an expressive API, it’s highly compatible, extensible and customizable to fit any need. With granular access to editor content, changes and events, and consistent solid performance with JSON as both input and output, developers will find working with Quill a wonderful experience.
    Downloads: 9 This Week
    Last Update:
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  • 11
    Markdig

    Markdig

    A fast, powerful, CommonMark compliant, extensible Markdown processor

    A fast, powerful, CommonMark compliant, extensible Markdown processor for .NET. Very fast parser and HTML renderer (no-regexp), very lightweight in terms of GC pressure. Abstract Syntax Tree with precise source code location for syntax tree, useful when building a Markdown editor. Check out MarkdownEditor for Visual Studio powered by Markdig! Even the core Markdown/CommonMark parsing is pluggable, so it allows to disable built-in Markdown/Commonmark parsing (e.g Disable HTML parsing) or change behavior. ...
    Downloads: 15 This Week
    Last Update:
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  • 12
    OpenKnowledge

    OpenKnowledge

    Beautiful, AI-native markdown editor and LLM Wiki

    OpenKnowledge is an AI-native Markdown editor and LLM wiki for knowledge bases, specs, notes, and agent-friendly documentation. It is designed to make Markdown editing feel closer to a visual document editor while still preserving file-based workflows. The app supports a macOS desktop experience as well as a local web and CLI workflow for other platforms. It includes file navigation, search, tabs, wiki graph viewing, rich components, embeddable HTML, and terminal-oriented access. ...
    Downloads: 1 This Week
    Last Update:
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  • 13
    PanWriter

    PanWriter

    Markdown editor with pandoc integration and paginated preview

    PanWriter is a distraction-free markdown editor with two unique features. Tight integration with pandoc for import/export to/from plenty of file formats (including HTML, docx, LaTeX and EPUB). Preview pane that can show pages – including page breaks etc. Layout adjustments are immediately reflected in the preview. Instead, you can write text in Markdown, a convention on how to write plain text files.
    Downloads: 8 This Week
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  • 14
    Bento

    Bento

    Bento, the office suite that fits in a file

    Bento is a local-first presentation tool packaged as a single self-contained HTML file. Each deck carries its own viewer, presenter, editor, fonts, images, charts, animations, and document data. It opens in a modern browser without an account or installer and rewrites its own embedded data when saved. The document model remains readable as plain JSON, making files portable, inspectable, and directly editable by AI agents.
    Downloads: 11 This Week
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  • 15
    ngx-quill

    ngx-quill

    Angular components for the Quill Rich Text Editor

    ngx-quill is an angular (>=2) module for the Quill Rich Text Editor containing all components you need. It is possible to set custom default modules and Quill config options with the import of the QuillModule.forRoot(). Use <quill-editor></quill-editor> in your templates to add a default quill editor. Do not forget to include quill + theme CSS in your build process, module or index.html! For builds with angular-cli >=6 only add quilljs to your scripts or scripts section of angular.json, if...
    Downloads: 0 This Week
    Last Update:
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  • 16
    PSPad

    PSPad

    Text and code editor

    PSPad editor is a programmers editor with support for multiple syntax highlighting profiles. It comes with a hex editor, CP conversion, text differences, templates, macros, spellcheck option, auto-completion, Code Explorer and much more. The program is pre-configured for the most popular programming languages (VB, C++, SQL, PHP, ASP, Python etc.) and you can further customize the syntax settings.
    Downloads: 161 This Week
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  • 17
    HTMLPurifier for Laravel

    HTMLPurifier for Laravel

    HTMLPurifier for Laravel 5/6/7/8/9/10/11

    ...Tired of using BBCode due to the current landscape of deficient or insecure HTML filters? Have a WYSIWYG editor but have never been able to use it? Looking for high-quality, standards-compliant, open-source components for that application you're building? HTML Purifier is for you.
    Downloads: 0 This Week
    Last Update:
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  • 18
    mavonEditor

    mavonEditor

    A markdown editor based on Vue

    A markdown editor based on Vue that supports a variety of personalized features. The default toolbar properties are all true, You can customize the object to cover them. The language parsing files and code highlighting in Code Highlighting highlight.js will be loaded on demand. GitHub-markdown-CSS and katex will load only when mounted.
    Downloads: 0 This Week
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  • 19
    interactive-examples

    interactive-examples

    Home of the MDN live code editor interactive examples

    Home of the MDN interactive code examples. The dynamically generated pages, their dependencies, and assets are generated to the prod branch.
    Downloads: 0 This Week
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  • 20
    Fidus Writer

    Fidus Writer

    Fidus Writer is an online collaborative editor for academics

    Fidus Writer is an online collaborative editor especially made for academics who need to use citations and/or formulas. The editor focuses on the content rather than the layout, so that with the same text, you can later on publish it in multiple ways: On a website, as a printed book, or as an ebook. In each case, you can choose from a number of layouts that are adequate for the medium of choice.
    Downloads: 0 This Week
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  • 21
    UIkit

    UIkit

    Lightweight modular front-end framework for developing web interfaces

    A lightweight and modular front-end framework for developing fast and powerful web interfaces. UIkit will work on pretty much any modern browser. Using UIkit works best if you have a solid code editor, for example Sublime Text or Atom. To be even more efficient, we recommend that you install one of the autocomplete plugins for your favorite IDE or code editor. This saves a lot of time, as you won't have to look up and type all UIkit classes and markup. To use UIkit's CSS and JavaScript, include the files in your own HTML and then create the markup of any of the components. ...
    Downloads: 0 This Week
    Last Update:
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  • 22
    massCode

    massCode

    A free and open source code snippets manager for developers

    ...You can not only collect snippets but also see the rendering result for HTML and CSS in real-time. Test the idea or just view the result.
    Downloads: 22 This Week
    Last Update:
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  • 23
    baoyu-design

    baoyu-design

    Run Claude Design locally as an Agent Skill

    ...It packages Claude Design-style methodology for environments such as Cursor, Claude Code, Codex, Claude Desktop, and other file-capable agents. The skill can generate UI mockups, prototypes, wireframes, landing pages, dashboards, mobile app screens, and slide decks as self-contained HTML. It keeps outputs inside the local project, so artifacts can be versioned, edited, previewed, and refined without uploading work to a separate design website. The repository includes core design instructions, harness-specific references, built-in skills, starter components, and local preview guidance. It is useful for developers and designers who want agent-assisted product design inside their own editor workflow.
    Downloads: 15 This Week
    Last Update:
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  • 24
    VvvebJs

    VvvebJs

    Drag and drop website builder javascript library

    ...Components and blocks/snippets drag and drop. Undo/Redo operations. One or two panels interface. File manager and component hierarchy navigation. Add a new page. Live code editor. Image upload with example PHP script included. Page download or export HTML or save the page on the server with example PHP script included. Components/Blocks list search. Bootstrap 4 components. Youtube, Google maps, Charts.js, etc widgets. By default, the editor comes with Bootstrap 4 and Widgets components and can be extended with any kind of components and inputs.
    Downloads: 4 This Week
    Last Update:
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  • 25
    Inkdown

    Inkdown

    A WYSIWYG Markdown editor, improve reading and editing experience

    Inkdown (bluestone) is a Markdown reading, editing, and sharing tool. Almost fully compatible with the GitHub Flavored Markdown standard, while extending the Mermaid graphics and Katex formula, supporting light and dark styles, and somewhat different from other WYSIWYG editors, Inkdown does not pursue complete customization. Its core goal is comfortable reading, smooth editing of Markdown, and document sharing in the simplest way possible. As a document publisher, markdown source code mode...
    Downloads: 3 This Week
    Last Update:
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