tsumiki

ZenBlocks extends the WordPress block editor (Gutenberg) with custom blocks and advanced styling controls. Design responsive, professional buttons and UI elements — without writing any code.
Button Basic Block
Create fully customizable buttons with granular control over every visual aspect:
<ul>
<li>Colors & Backgrounds — Solid color, gradient, or image backgrounds with hover state support</li>
<li>Typography — Font family, size, weight, line height, and letter spacing</li>
<li>Layout — Width, height, padding, and margin with fine-grained control</li>
<li>Borders — Width, style, color, and independent corner radius</li>
<li>Icons — 1,500+ built-in icons with size, color, and position options</li>
<li>Hover Effects — Separate styling for hover state with smooth transitions</li>
<li>32 Design Presets — Start from professionally designed templates and customize freely</li>
</ul>
Responsive Design
Every setting supports 4 breakpoints (PC / Tablet L / Tablet / Mobile) so your buttons look great on all devices. Customize values per device or let them cascade automatically.
Performance
ZenBlocks generates optimized CSS per page — only the styles you actually use are loaded on the frontend. No bloated global stylesheets.
Pro Features (Optional)
Additional features such as animations, thumbnails, and background video are available through a separate plugin (ZenBlocks Pro) from <a href="https://zenblockswp.com/" rel="nofollow ugc">zenblockswp.com</a>.
<h3>Source Code</h3>
This plugin includes compiled JavaScript and CSS files in the <code>build/</code> directory. The original uncompiled source code is included in the <code>src/</code> directory of this plugin.
To build from source:
<ol>
<li>Install Node.js (v18 or later)</li>
<li>Run <code>npm install</code> in the plugin root directory</li>
<li>Run <code>npm run build</code> to generate the production files in <code>build/</code></li>
</ol>
The build process uses <code>@wordpress/scripts</code> (webpack-based).
<h3>External services</h3>
This plugin includes an optional media search feature that connects to third-party image and video APIs. These services are only used when the user configures API keys in the plugin settings and actively searches for media within the block editor. No data is sent to these services during normal frontend usage.
<h4>Unsplash</h4>
Used for searching and importing free-to-use images in the block editor.
<ul>
<li>Data sent: search query, page number</li>
<li>When: only when the user searches for images via the Unsplash media panel in the editor</li>
<li>Service provider: <a href="https://unsplash.com/" rel="nofollow ugc">Unsplash</a></li>
<li>API endpoint: <code>https://api.unsplash.com/</code></li>
<li>Terms of Service: <a href="https://unsplash.com/terms" rel="nofollow ugc">https://unsplash.com/terms</a></li>
<li>Privacy Policy: <a href="https://unsplash.com/privacy" rel="nofollow ugc">https://unsplash.com/privacy</a></li>
<li>API Terms: <a href="https://unsplash.com/api-terms" rel="nofollow ugc">https://unsplash.com/api-terms</a></li>
</ul>
<h4>Pexels</h4>
Used for searching and importing free images and videos in the block editor.
<ul>
<li>Data sent: search query, page number</li>
<li>When: only when the user searches for media via the Pexels media panel in the editor</li>
<li>Service provider: <a href="https://www.pexels.com/" rel="nofollow ugc">Pexels</a></li>
<li>API endpoint: <code>https://api.pexels.com/</code></li>
<li>Terms of Service: <a href="https://www.pexels.com/terms-of-service/" rel="nofollow ugc">https://www.pexels.com/terms-of-service/</a></li>
<li>Privacy Policy: <a href="https://www.pexels.com/privacy/" rel="nofollow ugc">https://www.pexels.com/privacy/</a></li>
</ul>
<h4>Pixabay</h4>
Used for searching and importing free images and videos in the block editor.
<ul>
<li>Data sent: search query, page number</li>
<li>When: only when the user searches for media via the Pixabay media panel in the editor</li>
<li>Service provider: <a href="https://pixabay.com/" rel="nofollow ugc">Pixabay</a></li>
<li>API endpoint: <code>https://pixabay.com/api/</code></li>
<li>Terms of Service: <a href="https://pixabay.com/service/terms/" rel="nofollow ugc">https://pixabay.com/service/terms/</a></li>
<li>Privacy Policy: <a href="https://pixabay.com/service/privacy/" rel="nofollow ugc">https://pixabay.com/service/privacy/</a></li>
</ul>
<h4>Openverse</h4>
Used for searching and importing CC0-licensed images in the block editor.
<ul>
<li>Data sent: search query, page number</li>
<li>When: only when the user searches for images via the Openverse media panel in the editor</li>
<li>Service provider: <a href="https://openverse.org/" rel="nofollow ugc">Openverse</a> (a project by WordPress.org)</li>
<li>API endpoint: <code>https://api.openverse.org/</code></li>
<li>Terms of Service: <a href="https://openverse.org/terms-of-use" rel="nofollow ugc">https://openverse.org/terms-of-use</a></li>
<li>Privacy Policy: <a href="https://openverse.org/privacy" rel="nofollow ugc">https://openverse.org/privacy</a></li>
</ul>
<h4>ZenBlocks Pro Services (zenblockswp.com)</h4>
Used for retrieving Pro upgrade pricing information on the plugin settings page.
<ul>
<li>Data sent: locale (for currency conversion)</li>
<li>When: only when the admin settings page is loaded</li>
<li>Service provider: <a href="https://zenblockswp.com/" rel="nofollow ugc">ZenBlocks</a> (Tsumiki LLC.)</li>
<li>API endpoint: <code>https://zenblockswp.com/wp-json/zenblocks/v1/pricing</code></li>
<li>Terms of Service: <a href="https://zenblockswp.com/terms" rel="nofollow ugc">https://zenblockswp.com/terms</a></li>
<li>Privacy Policy: <a href="https://zenblockswp.com/privacy" rel="nofollow ugc">https://zenblockswp.com/privacy</a></li>
</ul>
<h4>Icon Libraries (bundled, no external requests)</h4>
This plugin bundles SVG icon data from the following open-source icon libraries. All icon data is included locally within the plugin files — no external HTTP requests are made to any of these services at any time (neither in the editor nor on the frontend). The URLs listed below are the project homepages and license references for attribution purposes only.
<ul>
<li>
Feather Icons — MIT License, by Cole Bemis
<ul>
<li>Website: <a href="https://feathericons.com/" rel="nofollow ugc">https://feathericons.com/</a></li>
<li>License: <a href="https://github.com/feathericons/feather/blob/main/LICENSE" rel="nofollow ugc">https://github.com/feathericons/feather/blob/main/LICENSE</a></li>
</ul>
</li>
<li>
Font Awesome Free — Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT, by Fonticons Inc.
<ul>
<li>Website: <a href="https://fontawesome.com/" rel="nofollow ugc">https://fontawesome.com/</a></li>
<li>License: <a href="https://fontawesome.com/license/free" rel="nofollow ugc">https://fontawesome.com/license/free</a></li>
</ul>
</li>
<li>
Tabler Icons — MIT License, by Paweł Kuna & Tabler Team
<ul>
<li>Website: <a href="https://tabler-icons.io/" rel="nofollow ugc">https://tabler-icons.io/</a></li>
<li>License: <a href="https://github.com/tabler/tabler-icons/blob/main/LICENSE" rel="nofollow ugc">https://github.com/tabler/tabler-icons/blob/main/LICENSE</a></li>
</ul>
</li>
<li>
Heroicons — MIT License, by Tailwind Labs
<ul>
<li>Website: <a href="https://heroicons.com/" rel="nofollow ugc">https://heroicons.com/</a></li>
<li>License: <a href="https://github.com/tailwindlabs/heroicons/blob/master/LICENSE" rel="nofollow ugc">https://github.com/tailwindlabs/heroicons/blob/master/LICENSE</a></li>
</ul>
</li>
<li>
Lucide Icons — ISC License, by Lucide Contributors
<ul>
<li>Website: <a href="https://lucide.dev/" rel="nofollow ugc">https://lucide.dev/</a></li>
<li>License: <a href="https://github.com/lucide-icons/lucide/blob/main/LICENSE" rel="nofollow ugc">https://github.com/lucide-icons/lucide/blob/main/LICENSE</a></li>
</ul>
</li>
<li>
Remix Icon — Apache License 2.0, by Remix Design
<ul>
<li>Website: <a href="https://remixicon.com/" rel="nofollow ugc">https://remixicon.com/</a></li>
<li>License: <a href="https://github.com/Remix-Design/RemixIcon/blob/master/License" rel="nofollow ugc">https://github.com/Remix-Design/RemixIcon/blob/master/License</a></li>
</ul>
</li>
</ul>

ZenBlocks

Custom blocks for the WordPress block editor with responsive controls and advanced button styling.

Themeisle

Hardeep Asrani

Blocks CSS allows you add custom CSS to your Blocks straight from the Block Editor (Gutenberg).
It adds a syntax-highlighted CSS Editor where you can add additional CSS to your Gutenberg Blocks to style them the way you want.
All the code and sources for this plugin are publicly available as part of https://github.com/Codeinwp/otter-blocks.

Blocks CSS: CSS Editor for Gutenberg Blocks

This is must have plugin for Gutenberg Block Editor. Makes it so much easier to add css classes where you use the blocks! 

Excellent!

I think I just would not be able to use the block editor without this. Thank you so much for this plugin!

This plugin saved my life!


This is a great tool for what it does. The only confusing thing for me is that it says on .org that you have 11 blocks.  I couldn't spot any new ones after installing this plugin, nor found any settings.


This is a great tool for those wanting to use core blocks


Can't think of Block Editor without this. Tiny powerful thing. 



Only thing I hate in this plugin is the following line:



$render_css = empty( $file_name ) || strpos( $file_name, 'post-v2' ) === false;



This means if you deactivate Otter, your content might just break :( 


Completes Block Editor

Simple and great plugin!

Blocks CSS allows you add custom CSS to your Blocks straight from the Block Editor (Gutenberg).

ZenBlocks vs Blocks CSS: CSS Editor for Gutenberg Blocks