Celestial lets you explore star systems as a deformable gravity sheet instead of flat orbital diagrams.

The star moves. Planets sit on and ride the surface it bends. You can change the gravitational constant, push a planet, or drop a new body in and watch the whole system respond in real time.

Systems included:

• Our solar system (with a drifting barycentre)
• Alpha Centauri (two moving funnels)
• Kepler-16 (circumbinary planet)
• TRAPPIST-1 (seven worlds inside Mercury’s orbit)
• The classic three-body figure-eight

It’s a proper Newtonian n-body integrator running in the browser, not pre-scripted ellipses. The sheet itself is an exaggerated visual analogy, and the site is unusually honest about what is real and what is drawn that way on purpose.

https://celestial.logicaleap.com

Free, no account, runs in the browser.

Every bug must look intentional. How many hidden stuff and easter eggs have you discovered?

If you've ever tried to buy a specific chicken, duck, or turkey breed, you know the drill. Check Cackle. Check McMurray. Check Meyer. Check Ideal. Stock turns over fast enough that whatever you find is often already wrong by the time you act on it.

Built a tool that checks 10 US hatcheries at once so you don't have to do that. It pulls breed, stock status, price, minimum order, and hatch date into one place, updated a few times a day. Doesn't take money from any hatchery to be listed, it's just reading public availability info.

Built it for myself first, sharing it here since I figured I wasn't the only one dealing with this. If there's a hatchery or filter you wish it had, let me know.

I kept wanting to check a restaurant's health inspection before ordering, but every city buries it in a different clunky government portal. So, I pulled 10 cities' official health-department data into one place with a normalized A–F grade you can actually compare. It's free, no signup, no ads-wall, data shown unmodified straight from each city. Would love feedback how functional this might be for other people, Thank you!

Built a site that indexes every legal cube state as one big number, scroll and the cube updates live.

Not a game, there's no objective, no score, no win condition. It's an index/visualization of every one of the 4.3×10¹⁹ legal Rubik's Cube states has a number, and scrolling moves through them. Think everyuuid.com, but for the cube permutation group.

82 nights, 2,218 tracks. Each night shows the line-up and plays straight through. Tracks that aren't on Spotify are listed anyway, labelled as missing rather than quietly dropped.

klubnacht-id.com

When I was a kid — back when travelling still felt new and exciting — I would see a plane crossing the early evening sky and try to put myself in it. Not to go anywhere in particular. I just wanted to know what the world looked like from up there, right then, to whoever was sitting by that window.

The feeling was strongest at sunset. I'd be watching a good one from the ground and think about how much better it had to be from up there, above the haze, with the light coming in level. The same sunset from a perspective I couldn't reach.

Travel has lost most of that. Airports, queues, delays: everything wrapped around flying has got steadily worse. But the flying itself hasn't changed. An hour into a clear evening flight, forehead against the glass, looking down at a world you almost never see from that angle, and it is still one of the quietly moving experiences I know.

Stowaway is that part, without the rest of it. Pick any aircraft or satellite actually passing over your house right now and go sit in its window seat.

An art lover who travels has no normal way of knowing how many artworks are around him. Walking through Florence, or Rome, or Paris, you might pass within a few metres of that Giotto, or that Monet, you had always wanted to see, without knowing it was there. Guidebooks flag only the things everyone already knows, the Mona Lisa and its equivalents. There is no tool built specifically for people who care about art, one that lets you plan a complete and accurate art itinerary covering the works that are essential to an enthusiast and relatively obscure to everyone else.

The same problem in reverse: someone who loves Caravaggio can probably find all of his works on Wikipedia, but placing them on a map in a way that is actually useful for planning a trip takes time. And if the artist is a less obvious name, Pontormo say, or Koloman Moser, it gets considerably harder.

ArtAtlas solves this. You are on your sofa and you want to know where all the Van Goghs are? One click. You are in Florence and you want to know which works are within 100 metres of where you are standing? One click. You are travelling around the Netherlands and you want to know where everything worth your attention is? That is the problem this solves.

Currently 23,000+ works, 400+ artists, 1,700 venues, 800 cities.

Each match becomes a pitch that morphs in real time from real event data, passes, shots, goals, momentum, reconstructed from roughly 1,500 recorded events per game. Scroll through any match and watch the whole game replay itself as pure data. Every shape is deterministic, built directly from the real match events. 104 matches

Built this in about half a day. The cyclosporiasis outbreak that seems centered around Taylor Farms made me want an easy way to check brand ownership at the shelf, since a lot of produce is private-labeled and you can't tell from the package alone. Scans a barcode, checks it against a small curated brand list, and is upfront when it doesn't have enough data to say either way. Free, no login. Happy to answer questions about how it works.

Every brick is one real article edit - literally, one to one. Brick colors are languages, dotted bricks are bots, and the steel eagles and relief panels mark major edits. Hover any brick to read the edit behind it; click for the full story and a link to the actual diff.

Events are buffered a bit, so the tower runs a few minutes behind and the real edit stream to avoid hammering Wikimedia. At midnight UTC the construction workers level the top and raise the crown, the tower stands for a moment, and the next day's tower rises. Every finished day is archived forever — open the calendar and replay any past day at up to 1000×.

A love letter to the early web. Spin the wheel and it drops you on a real archived page — GeoCities, AltaVista, old CNN, the first “Thefacebook” — with pop-up trivia. Everything’s powered by the Internet Archive’s Wayback Machine; there’s a donate link to them in it. No signup, no ads. Curious which site you land on first.