Built here

AltF originals

Detours that do not leave the building. Every one of these is built and hosted by AltFTool, which means no redirect, no third-party trackers, and no chance of finding a parked domain where a website used to be.

Loads instantly
No account, no trackers
Runs entirely in your browser

Toys built for Detour

Perfect Circle
One stroke. No undo. Find out how round you really are.
Open
Infinite Bubble Wrap
Pop one, pop a row, never run out.
Open
Do Nothing
Move anything and it starts again.
Open
The Button You Should Not Press
There is nothing behind it. Press it anyway.
Open
The Useless Switch
Turn it on. It will disagree.
Open
Scroll to the Moon
One pixel, one metre. The Moon is 384,400 km away. Good luck.
Open
Emergency Compliment
For days that have not gone especially well.
Open
The Void
Say it, watch it go, close the tab.
Open

Full AltFTool experiences

Larger products that happen to also be excellent places to lose twenty minutes.

AltF Pulse
AltF
A paused editorial preview that explains the sourcing and publishing controls required before stories return.
- 10 min
Trivia & Quizzes Visit
FactNet
AltF
Short, sourced facts arranged so one leads into the next. Built for the specific pleasure of learning something you can repeat.
- 10 min
Curious Facts Visit
Games Arcade
AltF
The full arcade: dozens of browser games sorted by genre, all playable immediately with nothing to install.
- 10 min
Arcade Hubs Visit
Maker Studio
AltF
Generate a fake newspaper clipping, a talking animation or a ransom note. The 2005 internet, rebuilt so it still works.
- 2 min
Text & Font Toys Visit
Mockly
AltF
Build a convincing fake post, chat or notification for a joke or a mockup. Watermarked so nobody mistakes it for the real thing.
- 10 min
Prank Toys Visit
Name Origins
AltF
Type a surname and get where it came from, what it originally meant and where in the world it still clusters.
- 2 min
Language & Words Visit
Personality Lab
AltF
Proper trait questionnaires with the scoring shown, rather than a quiz that decides you are a golden retriever.
- 10 min
Personality Tests Visit
Pranx Studio
AltF
Full-screen fake terminals, fake updates and fake system alerts. Harmless, closeable with Escape, and very funny on a colleague's screen.
- <1 min
- Desktop
Look Productive Visit
SketchFlow
AltF
An infinite canvas for rough diagrams and flows. Opens instantly with nothing to configure and no file to save first.
- 10 min
- Desktop
Design Playgrounds Visit
Story Reader
AltF
Long-form serialised fiction with a reader built for actually reading — chapter memory, no pop-ups, no interruptions.
- 1 hr+
Free Libraries Visit