GrapesJS - Open Source Visual Web Builder Framework

TL;DR

TL;DR: GrapesJS is a free, open source drag-and-drop web builder framework (BSD-3-Clause, 25k+ GitHub stars) for embedding visual HTML template editors into CMS tools, newsletter platforms, and web apps.

Source and Accuracy Notes

• Project page: grapesjs.com
• Source repository: github.com/GrapesJS/grapesjs
• License: BSD-3-Clause (verified via packages/core/LICENSE and package.json)
• Latest version: v0.23.2 (released 2026-06-02, verified via GitHub Releases API)
• HN launch thread: news.ycombinator.com/item?id=38316413 (74 points)
• Source last checked: 2026-06-15

What Is GrapesJS?

GrapesJS is an open source web builder framework that lets you embed a visual, drag-and-drop HTML editor into your application. From the project’s own README:

GrapesJS is a free and open source Web Builder Framework which helps building HTML templates, faster and easily, to be delivered in sites, newsletters or mobile apps.

It was originally designed to speed up template creation inside CMS platforms, but has grown into a general-purpose visual editor framework used for:

• Newsletter editors — drag-and-drop email template builders
• Landing page builders — visual page composition with export to clean HTML/CSS
• CMS template editors — let end-users customize dynamic templates without touching code
• Web application builders — embed a full visual editor as a feature in your SaaS

The project also offers a commercial Studio SDK — a ready-to-use, white-label visual builder that wraps the open source core with official support.

Key Features

Based on the project README and documentation:

• Block Manager — drag pre-built content blocks (text, images, columns, forms) onto the canvas
• Style Manager — visual CSS editing with property-level control (typography, spacing, colors, flexbox, grid)
• Layer Manager — tree-view component hierarchy for precise selection and reordering
• Code Viewer — live HTML and CSS output you can inspect and copy
• Asset Manager — upload and manage images and media within the editor
• Local and remote storage — save/load templates from browser storage or your own backend
• Plugin system — extend with official and community plugins (presets, custom components, export formats)
• React wrapper — @grapesjs/react for declarative integration in React apps

How to Install and Use GrapesJS

Option 1: NPM (recommended for projects)

npm install grapesjs

Option 2: CDN (quick start)

<!-- unpkg (latest version) -->
<link rel="stylesheet" href="https://unpkg.com/grapesjs/dist/css/grapes.min.css" />
<script src="https://unpkg.com/grapesjs"></script>

<!-- or CDNJS (pin a specific version) -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/grapesjs/0.23.2/css/grapes.min.css" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/grapesjs/0.23.2/grapes.min.js"></script>

Minimal initialization

<link rel="stylesheet" href="path/to/grapes.min.css" />
<script src="path/to/grapes.min.js"></script>

<div id="gjs"></div>

<script type="text/javascript">
  var editor = grapesjs.init({
    container: '#gjs',
    components: '<div class="txt-red">Hello world!</div>',
    style: '.txt-red{color: red}',
  });
</script>

This is the exact initialization example from the project README. The container option targets a DOM element, components sets the initial HTML, and style sets initial CSS.

Development setup (contributing)

The project uses pnpm as its package manager (verified from the monorepo structure):

git clone https://github.com/GrapesJS/grapesjs.git
cd grapesjs
pnpm install
pnpm dev

Deeper Analysis

Why GrapesJS stands out

Most visual builders are either closed-source SaaS products (Webflow, Builder.io) or tightly coupled to a specific CMS. GrapesJS is different because it is:

1. Truly embeddable — it is a JavaScript library you initialize in any web page, not a hosted platform. You own the editor, the data, and the deployment.
2. Framework-agnostic core — the core is vanilla JS. Official React wrapper available, but no framework lock-in.
3. Output is clean HTML/CSS — no proprietary format. Exported templates work anywhere.
4. BSD-3-Clause licensed — permissive enough for commercial use, including the Studio SDK wrapper.

The Studio SDK (commercial offering)

The GrapesJS team now offers GrapesJS Studio, a white-label visual editor built on top of the open source core. From the README:

If you looking to embed the Studio editor in your application, we now offer the Studio SDK, a ready-to-use visual builder that’s easy to embed in external applications, with GrapesJS team support included.

This is a common open-core model: the core library stays free and open source, while the team monetizes through a polished, supported product for businesses that want a turnkey solution.

Tech stack

• Language: TypeScript
• Package manager: pnpm (monorepo with packages/core)
• Storage: pluggable (local, remote, or custom)
• Styling: Tailwind CSS used in the project’s own site

Practical Evaluation Checklist

Before adopting GrapesJS, verify:

• [ ] Does your use case need a full visual editor, or is a simpler rich-text editor enough?
• [ ] Are you comfortable maintaining the editor integration yourself (this is a library, not a hosted service)?
• [ ] Do you need specific plugins (e.g., newsletter export, preset blocks)? Check the official plugins and community plugins first.
• [ ] If you need React integration, use @grapesjs/react rather than raw DOM manipulation.
• [ ] For commercial use with support, evaluate the Studio SDK pricing vs. self-maintaining the open source core.
• [ ] Check the live demo to confirm the editing UX matches your expectations.

Security Notes

• GrapesJS runs entirely client-side in the browser. No server-side processing of template content by default.
• When using remote storage, ensure your backend validates and sanitizes saved HTML/CSS to prevent stored XSS.
• The components option accepts raw HTML — never pass unsanitized user input directly to it.
• If embedding in a CMS, apply your own content security policy (CSP) headers to restrict what the editor can load.

FAQ

Q: Is GrapesJS free for commercial use? A: Yes. The core library is BSD-3-Clause licensed, which permits commercial use, modification, and distribution. The commercial Studio SDK is a separate product with its own licensing.

Q: Can I use GrapesJS with React, Vue, or Angular? A: The core is vanilla JavaScript and works in any framework. There is an official React wrapper (@grapesjs/react) for declarative integration. Community wrappers exist for other frameworks.

Q: What is the difference between GrapesJS and the Studio SDK? A: GrapesJS is the free, open source core library. Studio SDK is a commercial, white-label product built on top of it, offering a polished editor with official support from the GrapesJS team.

Q: Does GrapesJS support AI-assisted editing? A: The GrapesJS website mentions an AI Chat Plugin that lets you build AI agents that edit your projects. This appears to be a newer addition to the Studio product line.

Q: What output format does GrapesJS produce? A: Clean HTML and CSS. No proprietary format or vendor lock-in. You can export the generated code and use it anywhere.

Conclusion

GrapesJS fills a specific niche: embeddable, open source visual HTML editors for developers who want to add drag-and-drop template building to their own applications. With 25k+ GitHub stars, a BSD-3-Clause license, and active maintenance (latest release v0.23.2 in June 2026), it is a mature choice for newsletter editors, CMS template builders, and landing page tools.

If you need a hosted, supported solution, the Studio SDK is worth evaluating. If you want full control and are comfortable maintaining the integration yourself, the open source core is battle-tested and permissively licensed.