Wikipedia is always useful for this kind of researches: Comparison of HTML editors
OpenBEXI, Quanta, Kompozer, Amaya and SeaMonkey could fit your need.
Answer from bluish on Stack OverflowTinyMCE
tiny.cloud › blog › open-source-wysiwyg-html-editor
10 Best Open Source WYSIWYG Editors in 2025 | TinyMCE
December 22, 2024 - QuillJS is a lightweight and beginner-friendly editor built for basic text editing needs. Its modular architecture and free, open-source nature make it accessible, though it lacks the depth of more feature-rich alternatives.
Reddit
reddit.com › r/nextjs › open source html editor
r/nextjs on Reddit: Open Source HTML editor
January 15, 2024 -
Hi Next.js community!
Do you recommend any open source HTML editor (WYSIWYG) that I can integrate into my Next.js application? Currently looking at GrapesJS, but have you got any other recommendation?
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Grapesjs is easy to work with. I know an opensource tool called https://github.com/webstudio-is/webstudio But don't think this webstudio fits your usecase as you are looking for something your application can work with.
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Can recommend Lexical from Facebook. Easy to integrate headless and into React.
Open source HTML editor with design view - Stack Overflow
Looking out for open source HTML editors with design view like Adobe Dreamweaver or Microsoft Expression Web . Thank you. More on stackoverflow.com
Open-source WYSIWYG editor Yoopta
The main reason why I started writing my WYSIWYG is the numerous and unsuccessful attempts to integrate other editors into my projects. I was so tired of their settings, bugs and complex customization that I finally decided to write my own open source :D More on reddit.com
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April 25, 2024Free and/or OpenSource full IDE with WYSIWYG features like Visual Studio
VS2022 Community is free for up to 5 users, unless your organisation counts as an "enterprise" - ie: more than 250 PCs or users, or more than $1M annual revenue. If you're in the "enterprise" bucket, then why are you looking for free tools? More on reddit.com
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October 3, 2024Open Source HTML editor
Grapesjs is easy to work with. I know an opensource tool called https://github.com/webstudio-is/webstudio But don't think this webstudio fits your usecase as you are looking for something your application can work with. More on reddit.com
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January 15, 2024Videos
14:18
The Best Next-gen WYSIWYG HTML Editor (2024) - YouTube
01:21
7 Best Free And Open Source HTML Editors - YouTube
HTML WYSIWYG editor | | Top 5 Free Html editor with ...
11:40
Best WYSIWYG HTML Editor - Code With Mark - YouTube
16:26
Microsoft Visual Studio Code - Introduction to HTML with VS Code ...
15:51
How to Create an HTML Page Using a Text Editor (VS Code) - YouTube
Quill
quilljs.com
Quill - Your powerful rich text editor
Quill is a free, open source rich text editor built for the modern web.
GitHub
github.com › JefMari › awesome-wysiwyg-editors
GitHub - JefMari/awesome-wysiwyg-editors: A curated list of awesome WYSIWYG Editors.
LexKit- An Open Source Layer on top of Lexical, to make Lexical more out of the box and DX frienldy. megadraft - Megadraft is a Rich Text editor built on top of Facebook's Draft.JS featuring a nice default base of components and extensibility · Plasmic - A WYSIWYG visual builder that lets you drag and drop React components.
Starred by 3.8K users
Forked by 242 users
Opensource.com
opensource.com › alternatives › dreamweaver
7 open source alternatives to Dreamweaver | Opensource.com
Aptana Studio is an "open source development tool for the open web" which, in practice, means it's more of an advanced IDE specializing in web development. Based on the open source Eclipse project, Aptana Studio features tools for assisting ...
Linux.org
linux.org › home › forums › general linux forums › dev-ops
Looking for WYSIWYG Web Page Editor | Linux.org
November 4, 2024 - Since you want something open-source, offline, preferably as an AppImage, and super simple with drag-n-drop plus optional code tweaking, check out WebStudio, Silex, or Graviton Editor. Silex especially might be your best bet—browser-based but also runnable locally, drag-n-drop interface, ...
GrapesJS
grapesjs.com
GrapesJS - Free and Open Source Web Template Editor Framework
Free and Open source Web Template Editor - Next generation tool for building templates without coding
Strapi
strapi.io › blog › best-wysiwyg-editors
10 Best WYSIWYG Editors for 2025
... Perfect for: Commercial projects requiring a premium user experience, applications with heavy image requirements, and design-focused websites. Quill is a free, open-source editor built for the modern web.
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Wikipedia is always useful for this kind of researches: Comparison of HTML editors
OpenBEXI, Quanta, Kompozer, Amaya and SeaMonkey could fit your need.
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I've used CoffeeCup's free html editor on occasion and found it's pretty good. Not open source though.
http://www.coffeecup.com/free-editor/
CKEditor
ckeditor.com
WYSIWYG HTML Editor with Collaborative Rich Text Editing
This gives us a solid foundation on which we can develop the editor. Software quality is in our DNA. We spend over 50% of our time testing code and writing documentation. 20+ years of experience in rich text editing. 50+ developers on board. 50M+ downloads and hundreds millions of users worldwide.' Superb documentation, outstanding technical support and a huge Open Source community that helps us make the software better.
Reddit
reddit.com › r/reactjs › open-source wysiwyg editor yoopta
r/reactjs on Reddit: Open-source WYSIWYG editor Yoopta
April 25, 2024 -
Hi everyone 👋
I want to introduce my open source project Yoopta-Editor and I want to ask you to give me some feedback. It’s packed with features that let you build editor as powerful and user-friendly as Notion, Craft, Coda, Medium etc.
Feel free to use, it's under MIT License!
Check features and examples below.
Examples - https://yoopta-editor.vercel.app
Features:
Easy setup
Default list of powerful plugins
Many typical solved problems in UX behavior.
Media plugins on steroids with optimization and lazy loadings
Code plugin on steroids with themes and languages
Each plugin can be easily customized and extensible
Drag and drop, nested dnd is supported also
Selection box for manipulating with multiple blocks at once
You can create your own plugin
A list of useful tools (ActionMenu, Toolbar etc.) for the convenience of working with the editor
Automatic lazy loading for media components (eg. embeds)
Large documents
Mobile friendly
Indent and outdent for every plugin by tabs and shift+tabs
Editor instance to programmatically control your content
Editor events for saving to DB in real-time
Exports in markdown, plain text, html - [in progress. Currently available only HTML exports]
Shortcuts, hotkeys. And customization for this!
Super AI tools not for HYPE, but for real useful work with editor content - [in progress]
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The main reason why I started writing my WYSIWYG is the numerous and unsuccessful attempts to integrate other editors into my projects. I was so tired of their settings, bugs and complex customization that I finally decided to write my own open source :D
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This is seriously cool. I have integrated BlockNote recently, but yours looks much more polished.
Tiny
tiny.cloud
The Most Trusted & Feature-rich WYSIWYG Rich Text Editor | TinyMCE
✨ I found out ~50% of my support tickets on remoteok.com were about Markdown issues: - non-tech people don't understand it - format is inconsistent - buggy if complex like * a list with **bold text** So I now switched to TinyMCE which is HTML: tiny.cloud ... We went from a completely custom DraftJS (now Lexical) implementation to TinyMCE and did not lose any sleep over it. ... I did a deep dive on this not long ago, TinyMCE is really the only one worth building with. ... Thanks! I tried many other tools - all open-source and came to the conclusion that many people may disagree with.
CKEditor
ckeditor.com › wysiwyg-editor-open-source
Free WYSIWYG HTML Editor for Open Source | CKEditor 5
CKEditor is available under the GPL 2+ license, allowing most open-source projects to start using the editor immediately.
Tiny
tiny.cloud › get-tiny
Free WYSIWYG HTML Editor | Download TinyMCE or Get Cloud Version | TinyMCE
Enjoy our advanced WYSIWYG HTML editor for free: download TinyMCE self-hosted version or start with an open source editor cloud version by getting an API key.
Online HTML Editor
onlinehtmleditor.dev
Free online HTML editor - Word to HTML | Onlinehtmleditor.dev
Whether you're updating tags, attributes, or inline CSS, the editor gives you immediate visual feedback—making it perfect for learning, testing, or quick fixes. There are 2 different editors available on this website: One with direct access to edit HTML markup, allowing you to write or modify code freely with full control. One designed for real-time collaboration, ideal for teams working together on content simultaneously. You can toggle the source view to switch between WYSIWYG and HTML code, and even convert Word content to HTML with high fidelity.
Quora
quora.com › What-is-the-best-free-WYSIWYG-HTML-5-0-editor
What is the best free WYSIWYG HTML 5.0 editor? - Quora
Answer (1 of 5): I agree with harry. wysiwyg is not a good way to write pages. once it will not do the exact thing you want it to you will not be able to fix it since you missing the proper knowledge. You should read and learn about HTML/CSS etc.
Xinha
trac.xinha.org
Xinha - Open Source Online HTML Editor
Xinha is open source, and we mean it, if you want to progress the development of Xinha in some way, submit a pull request!
Reddit
reddit.com › r/csharp › free and/or opensource full ide with wysiwyg features like visual studio
r/csharp on Reddit: Free and/or OpenSource full IDE with WYSIWYG features like Visual Studio
October 3, 2024 -
I've found VS to be a great IDE. My company is exploring other development alternatives, including C#, but it's not free for us.
VS Code does not have a graphical UI, needed for plenty of stuff like the developed software user interface itself.
I've just learned about Monodevelop. Unfortunately, I think you all know how it ended up.
What would you use in my situation?
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VS2022 Community is free for up to 5 users, unless your organisation counts as an "enterprise" - ie: more than 250 PCs or users, or more than $1M annual revenue. If you're in the "enterprise" bucket, then why are you looking for free tools?
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How can the small cost of your primary development software compare to the productivity gains of having the best tools for the job? Walking is cheaper than operating a van but can you imagine if Amazon got their delivery people to deliver everything on foot? I realise that's an extreme example but if as a company the main selling point of a key system critical to the delivery of your business' bottom line is that it needs to be free, I would be re-evaluating whether that's a sound line of reason. The best tools can mean better ability to ensure quality, faster delivery of value, and faster turnaround on issues. These things are imo the top priority.
MAPSystems
mapsystemsindia.com › resources › best-online-html5-editors.html
7 Best Open Source Online HTML5 Editors - MAPSystems
May 8, 2024 - One of the highly preferred HTML editor software is Aloha Editor. More than facilitating fast editing, the process is very easy and doesn’t require any technical expertise. This tool requires less than 5 minutes to be integrated into your webpage.
Brackets
brackets.io
Brackets - A modern, open source code editor that understands web design.
Format JavaScript, HTML, and CSS files. Live preview of markdown documents. File icons in Brackets’ file tree. Show indent guides in the code editor. Parse CSS and add vendor prefixes automatically. Simple W3C Validator. ... Brackets is maintained by the brackets.io community. It was founded by Adobe as a community guided, open source project to push web development editors to the next level.