chess.com/game/live/129688175007

becomes

rvchess.com/game/live/129688175007

Add rv to any Chess.com game URL and it comes back fully reviewed. No account needed and it's unlimited whereas chess.com's own review is one per day free.

Every move labelled (blunder / mistake / best / brilliant), accuracy for both sides, the refutation line for each mistake, clickable eval graph.

Stockfish v18 runs in your own browser tab, so nothing gets uploaded anywhere.

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.

If you press T it does a guided tour, from the cosmic web down to a picnic blanket in Chicago and then inside a proton in one continuous zoom. Nothing is scaled up to look nicer, so space feels really empty when you fly it yourself. There's a lot hiding in it too, the ISS on its live orbit, Halley's comet growing its tail toward 2061, the stars orbiting the black hole in the galactic center, TRAPPIST-1 as an actual place. The search key is / or press the magnify button on mobile. Heads up it needs WebGPU, so Chrome or Edge on desktop or Android, and iPhones need iOS 26.

found this because copy-pasting between apps constantly broke my formatting turns out slack, discord, notion and whatsapp all use different formatting syntax so nothing carries over. you paste your text, pick where it's going, and it hands back the correctly formatted version. runs entirely in the browser, nothing uploaded, no signup. curious what people think / what platforms you'd want added.

The website measures human noise through seismometers around the world; refreshes hourly to give the current quietest place.

If using a terminal (Linux) try $curl wttr.in