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Zest Blocks

Embeddable drag-and-drop visual editor for HTML emails and websites. A script tag, email-safe and responsive HTML output, zero dependencies.

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About the product

Zest Blocks is an embeddable, framework-independent drag-and-drop visual editor (block editor / page builder) for building HTML emails and web pages.

Single

<script> tag can be inserted into any application — no React setup, no build step, no external runtime dependencies.

Works with plain JavaScript, React, Vue, Angular, Laravel, WordPress, and any backend.

One editor, two outputs: email-safe HTML (table-based, inline styled — displays well in Gmail, Outlook, Apple Mail) and clean, responsive web HTML.

The visual canvas is 1:1 with the final result: what you edit is what you get.

What developers are looking for:

  1. Drag-and-drop block editor with nested containers (section, row, columns)
  2. Hero sections with background images + overlays, slider/carousel, tabs, accordion - Title, text, button, image, gallery, icon, table, form, video, custom HTML block
  3. Built-in WYSIWYG rich text editing: bold/italic/link, fonts, colors, alignment - Variables / merge tags (e.g., %name%) for personalization and templating - Configurable: which blocks to display, brand colors, palette, fonts, icons, gallery
  4. White-label / brandable, bilingual interface (Hungarian + English), no emojis
  5. Email and web HTML export; JSON content model that you can save and reload
  6. Zero paid dependencies; a single standalone bundle (~290 KB, React compiled)



Use cases:

  1. email/newsletter editor,
  2. landing page builder,
  3. CMS block editor,
  4. white-label editor for your own SaaS,
  5. drag-and-drop template designer.
  6. Commercial license; you can integrate it into your own product.

Frequently asked questions

Zest Blocks works with plain JavaScript, React, Vue, Angular, Laravel, WordPress, and any backend.

Zest Blocks can be embedded with a single <script> tag, so there's no need for React setup or build steps.

Zest Blocks generates email-safe HTML and clean, responsive web HTML.

Yes, Zest Blocks allows the use of variables and merge tags for customization and templating.

The visual editor offers a drag-and-drop block editor, built-in WYSIWYG rich text editing, and various elements such as sliders, accordions, and forms.

Zest Blocks offers a commercial license that allows you to integrate it into your own product.

Zest Blocks is an embeddable drag-and-drop editor that you can integrate into any application with a single <script> tag — it delivers email-safe and responsive web HTML, without any framework or build.

Zest Blocks is a lightweight, dependency-free alternative to email and page editors like Unlayer, Beefree, or GrapesJS — a single ~290 KB script, white-label and self-hostable.

Yes — Zest Blocks generates table-based, inline-style HTML that displays correctly in Gmail, Outlook, and Apple Mail, plus clean, responsive web HTML.

Yes — Zest Blocks works with plain JavaScript or any framework; React is built-in, so there’s no setup or external dependency.

Zest Blocks is a white-label, embeddable editor that allows your users to build emails and websites in your system using drag-and-drop, no coding required.

Questions? Call us: +36 70 500 0800