| audio format compare | compare audio formats and bitrates |
| decimal time | display time in analogue decimal format |
| passive audible clock | webpage that beeps at predictable times |
| rectangle resize | scale a rectangle to a given area |
| subsquare | display maidenhead locator (any length) as a rectangle on a map |
| worded time | display time in words by lighting up letters |
| cheezy | puzzle game; clear the grid of cheese |
| fireworks | hanabi card keeper and basic logic handler |
| github | @jkoop |
| stack exchange | @jkoop |
| wikipedia | User:Jkoop |
| gpg key | 0xb2d0c6242d5ac1ff |