10 Best Snow Effects: jQuery, JavaScript & Pure CSS (2026)
Website snowfall effects usually rely on CSS keyframes, animated DOM elements, or particle rendering. JavaScript adds control over flake count, speed, size, wind, and where the animation appears.
The 10 free and open-source snowfall effects here use jQuery, vanilla JavaScript, or pure CSS for full-page backgrounds and individual page sections. Snowflakes.js exposes runtime controls for a configurable overlay, and the Three.js example creates a 3D scene with wind and depth.
Last Updated: Oct 3, 2026
Quick Comparison
| Snow Effect | Technology | Rendering & Controls |
|---|---|---|
| letItSnow | jQuery | DOM/CSS; responsive density, size, color, speed |
| Flurry | jQuery | DOM/CSS; wind, rotation, opacity, callbacks |
| let-it-snow | jQuery | DOM/CSS; sticky and collecting flakes |
| Snowflakes.js | Vanilla JS | DOM/CSS; wind, rotation, lifecycle API |
| Three.js Snow & Wind | Three.js | WebGL; 3D particles, gravity, wind |
| Responsive Snowfall | Vanilla JS | CSS keyframes; viewport-based flake generation |
| Snow Theme | Vanilla JS | DOM/CSS; density, speed, size, wind |
| pure-snow.js | Vanilla JS | DOM/CSS; adjustable count, resize handling |
| CSS Only Snow Falling Effect | CSS/SCSS | CSS animation; SCSS variables and custom markup |
| Snow Falling Animation | Pure CSS | CSS keyframes; no JavaScript dependency |
Best jQuery Snow Effects
Add Festive Snowfall To Webpage With The letItSnow jQuery Plugin
letItSnow adjusts flake quantity as the viewport changes and exposes controls for snowflake markup, size, colors, quantity, speed, and refresh timing. Resize events recalculate flake density for the new width.
Customizable Snow Falling Effect With jQuery And CSS3 - Flurry
Flurry renders UTF-8 snowflakes as DOM elements animated with CSS transforms and transitions. Its options control wind, rotation, opacity, blur, frequency, size, speed, and z-index, with callbacks for initialization, destruction, and individual flakes.
Simple Falling Snow Effect with jQuery and CSS3 - let-it-snow
let-it-snow pairs jQuery with CSS animation and has a distinctive sticky mode that lets flakes collect on selected elements. The project is an older experimental implementation. High flake counts deserve testing against the layout and devices used by the site.
Best Vanilla JavaScript Snow Effects
Creating Customizable Snowfall with JavaScript – Snowflakes.js
Snowflakes.js is available as the magic-snowflakes npm package and as a browser script. Configuration handles count, speed, rotation, opacity, size, wind, z-index, and auto-resizing. Methods start, stop, show, hide, resize, or destroy an instance.
3D Realistic Snow & Wind Effects with Three.js
This effect uses a Three.js scene rendered through WebGL to animate 3D snow particles with gravity and wind. It requires Three.js and a Canvas element for rendering. The 3D particle scene differs from the DOM and CSS implementations in this collection.
Responsive Snowfall Animation with JavaScript and CSS3
A small JavaScript generator creates flakes according to viewport size, and CSS keyframes handle the falling and sway motion. The effect does not require Canvas, SVG, or image assets.
Add Snowfall to Your Website with Snow Theme
Snow Theme is about 2.5 KB and exposes a global configuration object for snowflake characters, spawn interval, size, fall duration, wind, and z-index. The browser setup loads a single snow.js file.
Display Falling Snowflakes On Webpage – pure-snow.js
pure-snow.js generates CSS-based flakes inside a container and reads the desired quantity from a data-count attribute. Version 2.1.0 also recalculates the effect after window resizing, and the snowflake appearance stays in regular CSS.
Best Pure CSS Snow Effects
CSS Only Snow Falling Effect
This stylesheet-based effect uses custom <snowflake> elements and ships with SCSS variables for flake count, timing, wind, size, and opacity. The compiled CSS runs independently of JavaScript.
Snow Falling Animation Using Only CSS
This implementation uses repeated .snow elements and per-flake CSS keyframes for opacity, scale, horizontal drift, and fall duration. It has no JavaScript or third-party library dependency.
Related Snow & Particle Resources
- Find More Free jQuery Snow Effect Plugins
- Find More JavaScript & CSS Snow Effects
- 10 Best Particle Systems/Effects In JavaScript
