Stuff I make
Countdowny bits
All my Countdown-related stuff is now on its own page. This is where you will find Atropine (for those of you who run co-events), the Quantum Tombola numbers solver, and all the other Countdowny toys I've ended up making over the years.countdown (small c)
- Octagon Simulator - Looking for an on-screen clock for your video/stream/overrunning work meeting? Want it to look niche, retro, dull, or some combination of these? Choose from over 4 designs!
Tools
Some of the tools below are also available at zeropopup.org, where I try to put all the general-purpose popup-free tools in one place.
- Bitlump - a tool to convert numbers to other
bases and various integer sizes, and to break down strings into their
Unicode codepoints.
- This includes the Float Twiddler which shows how floating-point numbers are internally represented in the IEEE 754 format.
- Unicode search - search for Unicode characters or emoji by name, in order to copy-paste them.
File transfer
- ton - a command-line application for Linux and Windows to make transferring a file from one computer to another easier than might be otherwise.
Maths
- Binomial probability calculator - a JavaScript tool to work out binomial probabilities without all the cruft and popups which adorn some other such calculators.
- Date calculator - add or subtract years, weeks and days from a specific date, or find the time elapsed between two dates, without any popups getting in the way.
- The Knight Errant puzzle - a problem about knight's tours and semimagic squares which I found in an old puzzle book, and a program to find additional solutions.
Astronomy
- Star Viewer, or "Watson, Someone Has Stolen Our Tent" - in 2010 I made this thing that generates the position of all the stars and planets in the sky for a given location. It sat there until 2026 when it was superseded by...
- Celestial Fishbowl - 16 years on, Star Viewer is rewritten, rebooted and reimagined. Now entirely in HTML and JavaScript, with fewer stars but more draggably modern.
