CacheMonet: the website that pairs random GIFs into endless generative art

CacheMonet is a single web page that has been quietly making art by itself since 2013: it slams two randomly chosen animated GIFs together over a looping music track, swaps them for a new pair every few seconds, and never stops. It is worth a look because it is one of the purest surviving examples of the early-2010s GIF-art moment, a piece that treats the humble animated GIF as paint and the browser as an endless, self-running gallery.

In brief

• CacheMonet, at cachemonet.com, endlessly pairs two randomly chosen animated GIFs over a looping soundtrack, generating a fresh combination every few seconds.
• Nothing is composed in advance: two curated sets of GIFs are shuffled by chance, so no two visits produce quite the same sequence.
• It was made in 2013 by Brooklyn creative Tim Nolan, with code by Lasse Korsgaard and music by Jib Kidder, and drew more than 880,000 visits in three weeks.
• The GIFs mix custom work with finds hand-picked from Tumblr, steeped in 1990s net nostalgia: MS-DOS, VHS, and Windows XP.

What CacheMonet actually is

Open cachemonet.com and there is no menu, no instructions, and nothing to click. A music track starts, and the screen fills with two animated GIFs laid over each other: perhaps a spinning low-resolution planet behind a strip of dancing cartoon food, or a wall of static behind a looping VHS glitch. A few seconds later the pair is gone, replaced by a different collision that has probably never appeared before and may never appear again.

The imagery is deliberately lo-fi. Pixelated 3D renders, clip-art animals, looping fire, spinning logos, and chunks of retro operating system drift in and out, all of it carrying the compression artefacts and limited colour of the format's heyday. None of it is high definition, and that is exactly the point.

The technology writer at Laughing Squid called it a delightfully absurd site that shows an unending series of randomly selected animated GIFs alongside musical accompaniment. That is the whole experience. There is no goal, no score, and no end. A visitor simply sits inside a slideshow that assembles itself, forever, out of a bag of vintage internet imagery.

The effect lands somewhere between a screensaver, a lava lamp, and a fever dream. It rewards the same passive, ambient attention as a fish tank, except the fish are decade-old reaction GIFs and the water is a synth loop. Like WindowSwap, the site that pipes in a stranger's window view, it is built to be left open rather than actively used.

There is no pause button, no volume slider, and no way to summon a particular image. A visitor gives up control at the door, which is unusual for a modern web page and central to how the whole thing feels.

How the random pairings work

The magic is that no human ever designed the compositions on screen. In the interview quoted by Vice, creator Tim Nolan explained the mechanism plainly: there are two curated sets of images cached on the server, and two random scripts pull one image from each set. Each randomized pairing is displayed for four seconds before a new pairing is generated.

Coder Lasse Korsgaard frames the same idea on his project page as an exploration of the serendipitous collisions that occur between two randomly generated arrays. In other words, the artwork is not a fixed film that Nolan edited. It is a machine for making art, and the finished pieces exist only for the four seconds they happen to be on screen.

That design has a quiet consequence. Because the front layer and the back layer are chosen independently, the number of possible combinations is roughly the size of one set multiplied by the other. A visitor is almost always looking at a juxtaposition that no one, including the people who built the site, has ever seen or approved.

It also quietly recasts the visitor as the only audience a given piece will ever have. Watch a pairing for its four seconds and it is gone, unlogged and unrepeatable, seen by one person and then dissolved back into the pool.

Where the GIFs come from

The raw material is pure old internet. According to the same Vice account, the GIFs were either made by Nolan himself or hand-picked, based on their look and timing, from Tumblr, which in the early 2010s was the beating heart of animated-GIF culture. The selection leans hard into net nostalgia, pulling in everything from MS-DOS screens to potato chips, VHS tracking lines, and Windows XP.

This places CacheMonet firmly inside the broader story of GIF art, the movement that reclaimed a clunky 1987 image format as a serious medium for loops and glitch. The site is essentially a generative collage engine for that aesthetic, endlessly remixing a curated crate of found and handmade loops rather than presenting any single one as the finished work.

The curation matters as much as the code. Nolan did not scrape the whole of Tumblr at random; he chose clips for their rhythm and texture, so that almost any two of them, stacked together, tend to rhyme rather than clash.

That is why the collisions so rarely feel like noise. The pool is small and deliberate, tuned so that chance keeps handing the viewer something that looks composed, even though nothing about the specific pairing ever was.

The name is a triple pun

The title does a lot of work in two words. On one level it is a homophone for cash money, the old hip-hop boast, which is why an early write-up of the project ran under the Wu-Tang-flavoured headline about cache ruling everything around us. On another level it nods to Claude Monet, the founder of French Impressionism, whose paintings resolve from a mess of loose dabs into a scene only when viewed as a whole.

That second reading is the sharp one. Impressionism argued that a picture could be built from separate flecks of colour that the eye assembles. CacheMonet runs the same trick with animation, letting two unrelated loops sit together until the brain insists on finding a relationship between them. As Vice noted, the name deliberately fuses the computer idea of a cache with the painter, which is a neat description of what the page does.

The people behind it

CacheMonet is usually credited to Tim Nolan, an interactive creative based in Brooklyn, who supplied the concept and the curation. The Vice profile describes it as his idea, built from GIFs that captured a time when he first found the internet exciting and strange.

The build was a collaboration. Developer Lasse Korsgaard wrote the code that shuffles the two arrays, and lists the project among his own work. The soundtrack, a track titled Windowdipper, was made by the musician Jib Kidder, a credit Korsgaard records on the same page. The result is a small, tidy example of art made possible only where curation, code, and sound meet, with no one part carrying it alone.

From browser toy to art object

CacheMonet was not a slow burn. According to Vice, Nolan launched it on 13 November 2013, and within three weeks the page had gathered more than 880,000 visits. It reached Hacker News the following day, where an early commenter called it the trippiest experimental website they had seen.

The stranger part of the story is what happened next. Vice reports that the attention brought offers from galleries, and that Nolan sold a four-minute video clip of the site's output to the founder of a social network for more than 3,000 dollars. A page that generates disposable, four-second collages had, briefly, turned one of them into a collectible, which is about as pure a snapshot of the early GIF-art gold rush as exists.

It landed at exactly the right moment. Around 2013 the art world was briefly and seriously infatuated with the animated GIF, staging gallery shows and auctions for a format most people still filed alongside email forwards. CacheMonet arrived as both a celebration of that culture and, in the quiet way it churns out unsaveable art, a small joke at its expense.

Why it still runs, more than a decade on

Most novelty sites from 2013 are long dead, their domains parked or their Flash guts rotted out. CacheMonet is still playing. It resurfaced on Hacker News again in 2026, pulling 144 points and a fresh round of comments from people meeting it for the first time and others returning to an old favourite.

Its endurance is partly technical, since a page that just layers GIFs and plays a sound file has very little to break. But it is also that the nostalgia has aged into something richer. In 2013 the imagery was a wink at the recent past. In 2026 the site is a nostalgia object twice over: a piece about old internet culture that is now itself a relic of old internet culture, still running exactly as built.

Why it is worth a few minutes

CacheMonet asks nothing of a visitor, which is its whole appeal. There is no account, no feed, and no next video engineered to keep anyone hooked. There is only a machine calmly making pictures that no one will ever make again, whether or not anybody is watching.

It belongs to the same small family of single-purpose art sites as Sandpile, pages built on the plain idea that a website can be one self-contained pleasure and has no duty to be anything more. Anyone who has enjoyed the audiovisual toy Patatap, where keystrokes trigger sound and colour, will recognise the same instinct here: sight and sound, bolted together, for no reason but the fun of it.

The best way to watch it is to stop trying to watch it. Leave cachemonet.com open in a tab, let the music run, and glance over now and then. Every so often the two random layers will land on a pairing so absurd or so oddly beautiful that it feels deliberate. It never was. That accident, repeated forever, is the entire point.

FAQ

What is CacheMonet?

It is a website at cachemonet.com that endlessly layers two randomly chosen animated GIFs over a looping music track, changing the pair every four seconds. As its coder Lasse Korsgaard puts it, it explores the serendipitous collisions between two randomly generated arrays of images, so the compositions are generated live rather than authored in advance.

Who made CacheMonet, and when?

It was created by Brooklyn interactive creative Tim Nolan, with code by Lasse Korsgaard and music by Jib Kidder, and launched on 13 November 2013 according to Vice. The same report says it drew more than 880,000 visits in its first three weeks.

Where do the GIFs come from?

Per Vice, the GIFs were either made by Nolan or hand-picked for their look and timing from Tumblr. They lean into 1990s and early-2000s net nostalgia, with imagery like MS-DOS, VHS, potato chips, and Windows XP.

Is CacheMonet still online?

Yes. The site is still live and playing, and it returned to Hacker News in 2026 with 144 points, more than a decade after its launch. Because it does so little, layering GIFs and playing a sound file, there is very little in it that can break.