David Arnado

Supercharge your WordPress site with Caledros Basic Blocks – a collection of 18 lightweight, performance-optimized Gutenberg blocks designed to extend the capabilities of the WordPress block editor without slowing down your site.
Unlike many block libraries that add unnecessary bloat, Caledros Basic Blocks focuses on efficiency and speed. Each block is crafted to deliver essential functionality while keeping your site lean.
The plugin includes a built-in CSS stylesheet preloader, ensuring faster page load times by optimizing the delivery of block styles. This feature can be easily disabled if preferred, giving you full control over performance tuning.
<h3>Features</h3>
<ul>
<li>Adds 18 new custom Gutenberg blocks, and 2 new variation blocks. 4 blocks and 1 variation block are only available for header template parts. 1 block (Content Renderer) is limited to templates. </li>
<li>Flex and grid containers blocks included</li>
<li>Dark/Light mode block included</li>
<li>Blocks built with performance and minimalism in mind</li>
<li>Includes a toggleable preloader for CSS stylesheets to improve loading speed</li>
<li>Includes toggleable controls for adding/removing pre-defined CSS styles to the “wp-site-blocks” container.</li>
<li>Enable featured images for post categories</li>
<li>Clean, modern design for seamless visual integration</li>
<li>Fully responsive and compatible with Full Site Editing Themes</li>
</ul>
Perfect for developers, designers, and content creators who want more control and better performance without the overhead of large block libraries.
<h3>More Projects & Information</h3>
For more information about my projects, you can visit my website: <a href="https://caledrosforge.com/" rel="nofollow ugc">caledrosforge.com</a>
<h3>Third Party Resources</h3>
Caledros Basic Blocks bundles the following third-party resources:
<h3>1. Icons</h3>
1.1. Bootstrap Icons, Copyright (c) 2019-2024 The Bootstrap Authors
The icons (SVG files) used in the Icon block, Social Icon block, and the Button Block were downloaded from Bootstrap Icons.
Additionally, the four icons used in the Posts Loop block (user, date, category, and tag) as well as the publications icon in the Category Loop block, were all sourced from Bootstrap Icons.
Bootstrap Icons are licensed under the MIT License.
Source: <a href="https://github.com/twbs/icons" rel="nofollow ugc">Bootstrap Icons Github repository</a> and <a href="https://icons.getbootstrap.com/" rel="nofollow ugc">Bootstrap Icons website</a>
License information last verified on: May 21st, 2025
<h3>2. Libraries</h3>
2.1. Swiper JS, Copyright (c) 2019 Vladimir Kharlampidi
Both the Slider block and the Image Gallery block use the Swiper JS library, which is licensed under the MIT License.
Source: <a href="https://github.com/nolimits4web/swiper" rel="nofollow ugc">Swiper JS Github repository</a> and <a href="https://swiperjs.com/" rel="nofollow ugc">Swiper JS website</a>
License information last verified on: May 14th, 2025
<h3>3. Images</h3>
3.1. Placeholder Mountains (placeholder-mountains.webp, placeholder-mountains.7da2eb2d.webp)
Used in the Category Loop and Posts Loop blocks.
<a href="https://creativecommons.org/publicdomain/zero/1.0/" rel="nofollow ugc">CC0</a> licensed <a href="https://wordpress.org/photos/photo/85161bd2cb/" rel="ugc">photo</a> by <a href="https://wordpress.org/photos/author/mkaz/" rel="ugc">Marcus Kazmierczak</a> from the <a href="https://wordpress.org/photos/" rel="ugc">WordPress Photo Directory</a>
Source: <a href="https://wordpress.org/photos/photo/85161bd2cb/" rel="ugc">WordPress Photo Directory</a>
License information last verified on: September 7th, 2025
3.2. Bird (bird.webp, bird.8dbbb5a8.webp)
Used in the Image Gallery block.
<a href="https://creativecommons.org/publicdomain/zero/1.0/" rel="nofollow ugc">CC0</a> licensed <a href="https://wordpress.org/photos/photo/715678e819/" rel="ugc">photo</a> by <a href="https://wordpress.org/photos/author/snilesh/" rel="ugc">Nilesh Shiragave</a> from the <a href="https://wordpress.org/photos/" rel="ugc">WordPress Photo Directory</a>
Source: <a href="https://wordpress.org/photos/photo/715678e819/" rel="ugc">WordPress Photo Directory</a>
License information last verified on: September 7th, 2025
3.3. Flower (flower.webp, flower.1092b3c8.webp)
Used in the Image Gallery block.
<a href="https://creativecommons.org/publicdomain/zero/1.0/" rel="nofollow ugc">CC0</a> licensed <a href="https://wordpress.org/photos/photo/763688069f/" rel="ugc">photo</a> by <a href="https://wordpress.org/photos/author/churaclicks/" rel="ugc">Chura Bhandari</a> from the <a href="https://wordpress.org/photos/" rel="ugc">WordPress Photo Directory</a>
Source: <a href="https://wordpress.org/photos/photo/763688069f/" rel="ugc">WordPress Photo Directory</a>
License information last verified on: September 7th, 2025
3.4. Mountains (mountains.webp, mountains.2b50cd4a.webp)
Used in the Image Gallery block.
<a href="https://creativecommons.org/publicdomain/zero/1.0/" rel="nofollow ugc">CC0</a> licensed <a href="https://wordpress.org/photos/photo/62068b050a/" rel="ugc">photo</a> by <a href="https://wordpress.org/photos/author/abishkaarchettri/" rel="ugc">ABISHKAAR CHETTRI</a> from the <a href="https://wordpress.org/photos/" rel="ugc">WordPress Photo Directory</a>
Source: <a href="https://wordpress.org/photos/photo/62068b050a/" rel="ugc">WordPress Photo Directory</a>
License information last verified on: September 7th, 2025

Caledros Basic Blocks

Introduces 18 lightweight blocks for the Gutenberg editor. Also includes an optional preloader for CSS stylesheets to enhance performance.

UltraBlocks

UltraBlocks is a powerful Gutenberg block plugin designed to enhance your WordPress editing experience. With a variety of custom blocks, including container, grid, paragraph, buttons, countdown, shape-divider, google-maps, and more, UltraBlocks allows you to create stunning layouts and designs effortlessly.
UltraBlocks is continually evolving, with more exciting features and blocks planned for future updates.
<h3>Key Features</h3>
👉 Premium Gutenberg Blocks: Top-tier blocks plugin designed for optimal performance
👉 Lightning-Fast Assets: Quick-loading icons, fonts, and templates for a smooth experience
👉 Seamless Full Site Editor Integration: Works flawlessly with the WordPress Full Site Editor
👉 Native WordPress Block Interface: Enjoy a familiar and intuitive editing experience
👉 Flexible Container Width: Easily adjust container widths with a draggable interface
👉 Drag-and-Drop Simplicity: Effortlessly arrange and customize your layout with intuitive drag-and-drop controls
👉 Fully Responsive Design: Ensure your site looks great on mobile, desktop, and tablet devices
👉 Accordion Block: Add collapsible content sections to manage extensive information
👉 Buttons Block: Design eye-catching call-to-action buttons to boost user engagement
👉 Container Block: Create and organize content within custom containers for a structured layout
👉 Countdown Block: Feature countdown timers for events or special promotions
👉 Image Comparison Block: Display interactive before-and-after comparisons with ease
👉 Google Maps Block: Integrate maps to highlight key locations directly on your site
👉 Grid Block: Craft responsive grid layouts to showcase content dynamically
👉 Lottie Animation Block: Incorporate interactive and engaging Lottie animations into your design
👉 Paragraph Block: Customize and style text with a variety of formatting options
👉 Search Block: Add search functionality to help users quickly locate the content they need
👉 Shape Divider Block: Add stylish shape dividers to enhance section aesthetics
👉 Tabs Block: Present content in a tabbed format for a clean and organized look
<h3>Ultra Free Blocks: Effortless Gutenberg Design Tools for Your Site</h3>
✅ <a href="#" rel=" nofollow ugc">Accordion Block</a>: Create collapsible sections to manage and display large amounts of content in a compact space.
✅ <a href="#" rel=" nofollow ugc">Buttons Block</a>: Add attractive call-to-action buttons to your pages.
✅ <a href="#" rel=" nofollow ugc">Container Block</a>: Create custom containers to organize your content.
✅ <a href="#" rel=" nofollow ugc">Countdown Block</a>: Display countdown timers for events or promotions.
✅ <a href="#" rel=" nofollow ugc">Image Comparison Block</a>: Enable users to compare two images side by side with an interactive slider, ideal for showcasing before-and-after transformations or highlighting differences.
✅ <a href="#" rel=" nofollow ugc">Google Maps Block</a>: Embed Google Maps to showcase locations.
✅ <a href="#" rel=" nofollow ugc">Grid Block</a>: Build responsive grid layouts for your pages.
✅ <a href="#" rel=" nofollow ugc">Lottie Animation Block</a>: Add engaging and interactive animations to your site with Lottie animations.
✅ <a href="#" rel=" nofollow ugc">Paragraph Block</a>: Style your text with various font options and formatting.
✅ <a href="#" rel=" nofollow ugc">Search Block</a>: Add search functionality to your site, allowing users to easily find the content they’re looking for.
✅ <a href="#" rel=" nofollow ugc">Shape Divider Block</a>: Enhance your sections with decorative shape dividers.
✅ <a href="#" rel=" nofollow ugc">Tabs Block</a>: Organize content into tabs for a cleaner presentation.
<h3>Credits</h3>
UltraBlocks is developed and maintained by [https://ultrablocks.pro/contact].
<h3>Support</h3>
For support or inquiries, please contact [https://ultrablocks.pro/contact].
<h3>Like UltraBlocks?</h3>
If you find UltraBlocks useful, please consider leaving a positive review and rating on WordPress.org. Your feedback is greatly appreciated!

UltraBlocks | Gutenberg Blocks | Page Builder for Gutenberg Editor


Ultrablocks improves Gutenberg! Packed with useful blocks, it's perfect on any screen and loads lightning-fast. Website building made easy!


Fantastic Plugin with Powerful Blocks

Supercharge WordPress with UltraBlocks! Create dynamic, responsive, and polished layouts effortlessly with our custom blocks to boost your creativity.

Caledros Basic Blocks vs UltraBlocks | Gutenberg Blocks | Page Builder for Gutenberg Editor