Hacker News Viewer

Library of Juggling

by tontony on 2/2/2026, 7:58:49 AM

https://libraryofjuggling.com/

Comments

by: mfsch

Perhaps of interest: I came across this retrospective of the author of that site and how he moved it to static hosting a couple of years ago [1].<p>I would also say that this library covers more or less the “lower half” of solo ball juggling in terms of difficulty. With lower ball counts (say ≤ 4), there are a lot of these patterns that have complex arm movements and can be difficult to explain with words, so having such a listing with animations and step-by-step instructions is very valuable. Starting with 4 balls, there’s less and less time for moving your arms around and it is more about the sequence of heights of the throws, which are well described with just their numeric “siteswap” pattern and you can learn them just from knowing the number sequence. The site has only the most basic of those (e.g. 534) and even very common 4-ball (7531, 633) patterns are missing with hardly anything beyond that.<p>[1]: <a href="https:&#x2F;&#x2F;ianconvy.github.io&#x2F;projects&#x2F;other&#x2F;libraryofjuggling&#x2F;libraryofjuggling.html" rel="nofollow">https:&#x2F;&#x2F;ianconvy.github.io&#x2F;projects&#x2F;other&#x2F;libraryofjuggling&#x2F;...</a>

2/2/2026, 2:27:39 PM


by: thom

Juggling is one of hobbies with the highest ratios of being able to impress random people versus the actual effort you have to put in, and I generally find I never forget 3-ball stuff I learned as a kid. It&#x27;s also as good as a long walk for getting you out of your head when needed.<p>Shout out to anyone that remembers the Mushy Pea juggling shop in Manchester many years ago, where I learned all sorts of circus skills.

2/2/2026, 12:30:30 PM


by: xnorswap

I find it fascinating that it uses a 2-9 scale to grade difficulty.<p>The rating is described as a rating &quot;1 - 10&quot;<p>But every trick is actually graded 2 to 9. ( <a href="https:&#x2F;&#x2F;libraryofjuggling.com&#x2F;TricksByDifficulty.html" rel="nofollow">https:&#x2F;&#x2F;libraryofjuggling.com&#x2F;TricksByDifficulty.html</a> )<p>Presumably no-one ever wanted to define a grade 1, just in case an easier one was discovered, and similarly for 10.

2/2/2026, 11:15:51 AM


by: postsantum

As a Java developer, I recommend Factory trick. Simple, but impresses people the most<p><a href="https:&#x2F;&#x2F;libraryofjuggling.com&#x2F;Tricks&#x2F;3balltricks&#x2F;Factory.html" rel="nofollow">https:&#x2F;&#x2F;libraryofjuggling.com&#x2F;Tricks&#x2F;3balltricks&#x2F;Factory.htm...</a>

2/2/2026, 1:32:26 PM


by: bartonfink

[flagged]

2/2/2026, 9:44:18 AM