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Best Website Builder SDKs

By Venkatraman Chandrasekaran

Last updated on Sep 17, 2026

Website Builder SDKs help developers add website creation, page editing, and drag and drop design functionality inside their own applications. Instead of building a full website builder from the ground up, teams can use a website builder SDK, embeddable website builder, or visual editor SDK to give users a branded editing experience inside a SaaS product, CMS, marketing platform, or internal tool. These SDKs are useful when a product needs users to create landing pages, microsites, web pages, templates, or full websites without leaving the platform.

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ChaiBuilder

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Self hosted visual website builder for React and Next.js with custom blocks, design tokens, dynamic data, multilingual content, AI editing and customer controlled infrastructure.

Features

Self hosted visual website builder for React and Next.js
Custom React blocks with dynamic data providers and design system controls
Customer controlled database, hosting, media storage and publishing infrastructure

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Expert Analysis

### Self Hosted Architecture ChaiBuilder runs inside the customer’s Next.js application instead of placing pages and user data on vendor controlled infrastructure. The visual editor operates on the client, while authenticated actions, database access, data providers and HTML rendering remain on the customer’s server. This design supports organizations with data residency, compliance or infrastructure ownership requirements. ### Developer Extensibility Developers can create visual blocks from React components and define the properties editors are permitted to change. Server side data providers connect blocks to application data without exposing credentials to the browser. Plugins, custom actions, panels and fields allow the editing experience to be adapted to specialized website workflows. ### Operational Tradeoffs ChaiBuilder combines visual editing, Payload CMS integration, multilingual content, revisions, design tokens and AI assistance in a customer managed deployment. This gives teams control over upgrades and runtime behavior. It also makes them responsible for database backups, migrations, hosting availability, authentication, secrets and storage configuration.

Easyblocks

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Open-source React framework for embedding customized drag-and-drop page builders with responsive styling, design tokens, templates and dynamic data integration.

Features

Embeddable drag-and-drop visual editor for React applications
Custom visually editable React components with controlled properties and styling
Dynamic external data and reusable template support

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Primary Audience: React developers, SaaS platforms and product teams building customized visual page editors

Expert Analysis

### Component-Level Control Easyblocks is designed as a framework rather than a fixed page-building product. Developers provide the React components and determine which data fields, styles, variants and child components users can modify. This structure can help product teams maintain design-system consistency while offering visual editing to nontechnical users. ### Dynamic Content Architecture External data remains controlled by the host application. Easyblocks stores references to external resources and receives current data through editor or rendering properties. Custom picker widgets and fetching functions make the framework suitable for product catalogs, reusable content records and other data-driven page templates. ### Implementation Considerations Easyblocks supplies drag-and-drop behavior, responsive fields, inline editing, history and template functionality, but it requires developers to configure the product-specific experience. Teams should also evaluate the AGPL-3.0 licence before embedding it in proprietary software or contact Easyblocks regarding custom licensing.

GrapesJS Studio SDK

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White label visual builder SDK for embedding drag and drop website, newsletter, document, and landing page editors inside web applications.

Features

White label drag and drop visual editor
Website, newsletter, and document builder support
Custom components, plugins, and Platform API

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Parent Company: Primary Audience: Developers, SaaS platforms, product teams, website builder platforms, newsletter tools, document tools, and companies embedding visual editing into applications.

Expert Analysis

### Multi Format Builder SDK GrapesJS Studio SDK is broader than a simple website builder SDK. It supports visual editing for websites, newsletters, landing pages, and documents. This makes it useful for products that need more than one content creation workflow inside the same application. ### Developer Control and Extensibility The SDK can be installed through common JavaScript package workflows and customized through the GrapesJS core API. Developers can add custom components, configure blocks, manage assets, and extend the editor with plugins. This gives teams control over the editing experience and output structure. ### Embedded Product Fit The SDK is designed for white label embedding inside external web applications. Session based pricing, domain limits, storage limits, and support tiers make it suitable for teams that want to evaluate usage before scaling to larger customer facing deployments.