Fun
Let it snow
Turn any screen into a quiet snowfall — with drifts that build up along the bottom, snow that settles on your own words and flakes falling over your photos.
Sound
Save or share
The link keeps your snow, wind, sky and message settings. Photos are never uploaded, so they are not part of the link.
F full screen · Space or P pause · Esc exit · everything runs in your browser
Play and explore in your browser. No account needed.
Frequently asked questions
Does the snow really pile up?
Yes. Flakes in the nearest layers land on the bottom edge and on the tops of the letters in a snow message, and each new grain slides down until it rests, so drifts form slopes much like powder snow. At the default intensity the ground drift takes several minutes to reach its full height of about a fifth of the screen; more snow makes it faster. Untick Snow piles up along the bottom to keep the bottom clear, or press Clear settled snow to start again.
Can I put snow on my own photo and save it as a GIF?
Yes. Choose Snow on a photo, pick a JPG, PNG or WebP image, and the snow falls over it in the photo’s own shape. Download GIF makes a looping animation at 20 frames per second, 400, 640 or 800 pixels on its longest side; GIFs are limited to 256 colours, so smooth skies in a photo can show slight banding. Download PNG saves a still frame at the photo’s resolution, up to 2560 pixels. The photo is processed in your browser and never uploaded.
How does the wind and music-box sound work?
Both are made live in your browser with the Web Audio API, so nothing is downloaded. Winter wind is filtered noise that swells and fades slowly and grows louder as you raise the wind slider. Music box plays a gentle melody generated on the fly from a five-note scale, so it is not a recording of any existing song. Sound only starts when you press one of the buttons, and it stops while the snow is paused or the tab is hidden.
Will it slow down my computer or drain my battery?
It is built to stay light. The number of flakes scales with the size of your screen (up to about 1,600), each flake is drawn from a small pre-rendered image, and the canvas is capped at twice the normal pixel density. The animation stops completely when the tab is hidden or the snow is scrolled out of view, and Pause freezes it. On an older phone, a lower intensity keeps it smooth.
What does the share link contain?
Only the settings: mode, intensity, wind, flake size and style, sky, whether snow piles up, and for a snow message its text, colour and letter style. They are stored in the part of the address after the # sign, which browsers do not send to the server. Photos are never part of the link, so someone opening a photo link is asked to choose their own picture.
What happens if my device is set to reduce motion?
If your system asks websites to reduce motion, the snow starts paused and shows a still snowy scene. Press Play if you want the snowfall anyway; everything else, including the exports, works the same.
About this tool
Let it snow is a small winter window for any screen. The snowfall is drawn in layers: tiny, faint flakes far away drift slowly behind larger, brighter ones close up, and the wind pushes the near flakes harder than the distant ones, which gives the scene real depth. Gusts come and go on their own, so the snow never falls in a perfectly even pattern. You can choose soft round flakes, six-armed crystals or a mix, and set the sky to a starry winter night, blue hour, a grey snowy morning or a snowstorm.
What makes it different from a simple falling-snow animation is that the snow lands. Flakes in the front layers come to rest along the bottom edge and slide down the sides of the growing drift until they find a stable place, so the drift forms natural slopes. In Snow message mode the same happens on your words: type a name or a greeting and watch white caps build up on the tops of the letters while the rest slides off their edges.
Snow on a photo turns a picture from your phone or computer into a winter scene. The snow falls over the photo at its own proportions, and you can download the result as a looping GIF for a message or social post, or as a full-resolution PNG. Everything is processed in your browser: the photo is never uploaded, and the GIF is encoded on your own device.
For a cosy atmosphere, switch on the winter wind or the music box. Both are generated live, and the wind rises and falls with the wind slider. Full screen hides the controls after a moment of stillness, which makes the page useful as a winter backdrop on a TV during a party, in a shop window display or in a classroom. The animation pauses itself whenever the tab is hidden, and it honours your device’s reduced-motion setting.