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 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, 2024What is the best WYSIWYG Editor to use that is free?
it doesnt exist, they're all equally bad. More on reddit.com
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May 9, 2017Videos
01:21
7 Best Free And Open Source HTML Editors - YouTube
HTML WYSIWYG editor | | Top 5 Free Html editor with ...
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Top 10 Best Rich Text HTML JavaScript Editor 2022 | Free WYSIWYG ...
14:18
The Best Next-gen WYSIWYG HTML Editor (2024) - YouTube
32:33
This VS Code Killer Just Went Open Source (Written In Rust BTW) ...
05:06
Trix – An Open Source WYSIWYG Editor for Websites - 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.
MilesWeb
milesweb.co.uk › home › review: the best free html editors and ide
Review: The Best Free HTML Editors and IDE | HTML editors and IDE
June 17, 2025 - Being based on Java, it has advanced to program with JavaScript and provides a powerful development engine characteristic. The most current version is Aptana Studio 3.6.1. It is the free editor created by and for Windows.
IONOS UK
ionos.co.uk › digital guide › websites › web development › html editors
The best HTML Editors - IONOS UK
July 31, 2023 - Pros: Practical, free editor for Android software, with mobile optimisation as well as preview and integration of Google services. Cons: No disadvantages worth mentioning. Brackets is a free, open-source HTML editor from Adobe Systems. It supports Windows, macOS, and Linux operating systems and focuses particularly on the development of web projects.
ContentTools
getcontenttools.com
A small & beautiful WYSIWYG editor for HTML content · ContentTools
The ContentTools WYSIWYG editor can be added to any HTML page in a few simple steps. The getting started guide shows how. Full API documentation and examples for the ContentTools family of libraries.
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.
Reindigital
reindigital.io › home › blog › 10 best free html editors of 2025
10 Best Free HTML Editors Of 2025 | Rein Digital
January 6, 2022 - The default settings of visual studio code do not align with TSLint suggestions in Angular projects. Not all extensions are available for unpopular languages. Versions: There are two versions of Komodo, namely, Komodo Edit which is open source ...
IONOS UK
ionos.co.uk › digital guide › websites › website creation › dreamweaver alternatives: open source solutions
What are the top free Dreamweaver alternatives? 5 solutions compared
3 weeks ago - Additionally, Aptana Studio supports the latest web standards like HTML5. Pulsar is a community-developed fork of the editor Atom, originally developed by GitHub, whose official support ended in December 2022.
07 Heaven Marketing
07hm.co.uk › home › top 15 best html css editors for 2024
Top 15 Best HTML CSS Editors for 2024 - 07 Heaven Marketing
November 23, 2024 - Dreamweaver is ideal for professionals who need advanced features. Komodo Edit is a free, open-source editor that supports multiple languages and offers features like syntax highlighting, auto-completion, and debugging.
Aamax
aamax.co › blog › best-html-editor-best-and-free-editors-for-html
Best HTML Editor: 5 Best and Free Editors for HTML
May 3, 2025 - Brackets is an open-source editor that was specifically designed for web designers and front-end developers. It's lightweight but powerful, with a laser focus on web development. Live Preview: See real-time updates in your browser as you edit ...
It's FOSS
itsfoss.com › open-source-wysiwyg-editors
15 Best Open Source WYSIWYG HTML Editors
July 10, 2024 - Autoformatting, HTML/Markdown support, Font Style customization. Image alt text. Real-time Collaboration (Premium only). Revision History (Premium only). Spell and grammar check (Premium only). ... Froala is an exciting web editor that you can easily integrate with your existing open-source CMS like WordPress.
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.