adamhorne

Aizle Dots paints a living field of coloured particles behind or over your site. They drift slowly on their own, and part in a wide, soft wave around your visitor’s cursor. A premium, modern touch in two clicks.
It’s built to be the good kind of effect:
<ul>
<li>Dependency-free. One small vanilla-JavaScript canvas. No jQuery, no animation libraries, no bloat.</li>
<li>Private by design. No external requests, no tracking, no calls home. Your site stays your site.</li>
<li>Respectful. Honours the visitor’s “reduce motion” setting, pauses when the browser tab is hidden (saving battery and CPU), and never blocks clicks, links, or forms.</li>
<li>Tunable. A friendly settings page for colours, opacity, density, cursor behaviour, shapes, and where it shows.</li>
<li>Light. Particle count scales to the screen; you can disable it on mobile or place it behind your content for maximum readability.</li>
</ul>
Switch it on and it looks great immediately with sensible defaults, then make it yours.
What you can control
<ul>
<li>Your own colour palette (add or remove colours).</li>
<li>Opacity, density (more ↔ fewer dots), and particle size.</li>
<li>Cursor reach and push strength, plus how much the field drifts on its own (down to perfectly still).</li>
<li>Shapes: dots, squares, triangles, in any combination.</li>
<li>Layer: over your content (subtle overlay) or behind it (safest for text).</li>
<li>Where it appears: sitewide, the front page only, or by post type, with an exclude-by-ID list.</li>
<li>Accessibility & performance: respect reduced motion, and an optional “disable on mobile”.</li>
</ul>
Made by <a href="https://aizle.co" rel="nofollow ugc">Aizle</a>. Free, and genuinely free. The goodwill is the point.

Aizle Dots

Colourful particles that drift across your site and gently part around the cursor. An interactive background with no code and no libraries.

middlewayapproach

You can use the block inside the Gutenberg editor as you would use a any other block. You can find it in the common section.
Icon made by <a href="https://www.flaticon.com/de/autoren/freepik" rel="nofollow ugc">freepik</a> from www.flaticon.com

Particle Animation Block

Nice plugin

A Gutenberg block to render a particle effect.

Aizle Dots vs Particle Animation Block