Collection
Feels like magic
The reaction we sorted for is the small involuntary one — where a browser tab does something it has no right to be able to do.
464 sites · page 6 of 10
A search engine that crawls the web with its own bot rather than renting results from the giants, and does not track who is searching.
A live tank of sea nettles drifting in blue water, which has been the internet's default calming video for years.
- 10 min
Builds a photo mosaic out of hundreds of your other photos, free to make and zoomable right down to each tile.
- 10 min
- Desktop
A daily logic murder mystery with suspects, weapons and locations, solved by grid deduction in about ten minutes.
- 10 min
Click a dial-up modem, a Nokia ringtone or a VHS rewinder and remember precisely where you were standing at the time.
- 2 min
- Sound on
Type a band and get a cloud of other bands, positioned by how often listeners like both. Crude, ancient and still weirdly effective.
- 2 min
A non-profit, open-source search engine with its own index, curated by volunteers. Results feel nothing like the big engines, which is the point.
- 2 min
- Desktop
Fictional US national park built inside a colossal living organism, documented entirely as tourist brochures and incident reports.
- 10 min
Live tracking for thousands of satellites, with pass predictions for your postcode and a map of everything above you right now.
- 10 min
- Desktop
Name Origins
AltFType a surname and get where it came from, what it originally meant and where in the world it still clusters.
The official live stream, which for long stretches is simply Earth turning below the space station.
- <1 min
Georeferenced Ordnance Survey sheets you can fade against satellite imagery to see exactly what got demolished.
- 10 min
- Desktop
Run a country by answering one absurd policy dilemma a day, then watch your statistics drift somewhere you did not intend.
- 10 min
The live feed from a deep-sea research ship's remote submersible, complete with scientists audibly losing composure over a new sea cucumber.
- 10 min
- Sound on
Neal Agarwal's collection of one-idea interactive toys, from spending Bill Gates' money to scrolling the whole ocean floor.
Wordle for equations: eight tiles holding one arithmetic statement that has to balance as well as being correct.
- 2 min
Board games rebuilt for a group on a video call, with each person playing from their own phone. Codenames and Wavelength included.
- 10 min
Fast, minimal tracker that pings you the moment a followed episode airs. Open source and deliberately kept lightweight.
- 2 min
Notebooks for building charts in the browser, with a public gallery of thousands you can fork and pull apart.
- 10 min
- Desktop
Physically modelled sea you can retune — wind speed, swell, choppiness — rendering waves that behave properly.
- <1 min
- Desktop
A cabinet of small physics experiments — cloth, water, ragdolls, particles — built by one developer who simply kept going.
- <1 min
- Desktop
Eldritch horror podcast set in an alternate Appalachia where the mountains are older than people and considerably less friendly.
- 10 min
- Sound on
Browses the archives through emulated period browsers, so an old page renders the way it did rather than the way Chrome guesses.
- 10 min
- Desktop
Screenshots of archived GeoCities pages posted automatically, one after another, as a rolling portrait of the amateur web.
- 10 min
Multi-instrument piano roll in a browser, backed by thousands of user sequences you can open, pull apart and ruin.
- 10 min
- Sound on
- Desktop
Gallery of Processing and p5.js sketches where every piece runs in the page and the source is right there to fork.
- 1 hr+
- Desktop
A research-grade open flight tracking network run by universities, with live maps and the raw historical data behind them.
- 10 min
- Desktop
A sealed glass sphere of water, sand and brine shrimp that you seed and then leave running, ecosystem permitting.
Stanford's model of travel in the Roman world — pick two cities and get the cost, season and days by road or sea.
- 10 min
- Desktop
Write creative code in one pane and watch it run in the next, with no install, no build step and no configuration.
- 10 min
- Desktop
Colourises black-and-white photographs, then lets you steer the result by describing the colours you wanted in words.
- 2 min
MIT's ranking of historically famous people by how many language editions of Wikipedia bother to carry them.
- 10 min
- Desktop
Scroll to unroll an infinite toilet roll and scroll back to wind it up, presented by the artist with a completely straight face.
- <1 min
Noughts and crosses, gomoku and Connect Four against a real stranger, matched in about four seconds with no signup.
- <1 min
Drag mildly biased shapes around a grid and watch a segregated neighbourhood assemble itself without anyone intending it.
Home of Submachine and Daymare Town, Mateusz Skutnik's sketched, wordless worlds built entirely out of corridors and quiet dread.
- 1 hr+
- Desktop
Every letter on the keyboard fires a sound and a matching shape, and mashing the whole row is the correct way to use it.
- <1 min
- Sound on
- Desktop
Random generators for anything, built from plain text lists you can fork and edit yourself. Thousands of community ones already exist.
- 10 min
Draw a circle with the mouse and get scored on it to one decimal place. Nobody in recorded history has stopped after one attempt.
- <1 min
- Desktop
Draw a circle with one unbroken stroke and get scored on how round it actually was. Nobody beats 97% on a trackpad.
Personality Lab
AltFProper trait questionnaires with the scoring shown, rather than a quiz that decides you are a golden retriever.
- 10 min
Plays YouTube videos with almost no views, which turn out to be mostly a stranger's kitchen and a camera left running.
- 10 min
- Sound on
- Desktop
Colorado's library of physics, chemistry and maths simulations, used in classrooms everywhere and free to meddle with.
- 10 min
Interactive tests designed to find the contradictions in your own stated beliefs, the classic being Battleground God.
- 10 min
- Desktop
Photoshop rebuilt in a tab, opening PSD, XCF and Sketch files. Free, and startlingly close to the real thing.
- 10 min
- Desktop
Sprite and animation editor with onion skinning and a live loop preview, exporting straight to a spritesheet or GIF.
Draw on the grid and it writes the box-shadow monstrosity that renders your sprite with no image file involved at all.
Feed it a photograph and it hands back a pixel-art version, with block size and palette entirely under your control.
How we picked these
Every entry in Detour is hand-sorted rather than scraped: filed under one category, given one to three moods, and placed in a time band for how quickly it pays off. The practical facts — cost, sign-up, sound, device and whether it is safe at a desk — are recorded per site and shown on every card, so you can rule things out before you click.
Feels like magic: questions
How many sites are in “Feels like magic”?
464 sites, each hand-sorted by category, mood and how long it takes to pay off. 9 of them are AltF originals that run right here.
Which of these sites are free with no sign-up?
454 of the 464 are free and need no account. 1 is paid or freemium, and the card says so.
Do these sites work on a phone, and are they safe for work?
243 of 464 work on a phone; the rest are desktop only. 464 are safe for work and 415 work with the sound off.