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VisuAlgo – visualising data structures and algorithms through animation

Screenshot of visualgo.net captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 7 calendar years, with breakout response in 3 of them.

submissions
10
submitters
10
observed span
2017–2025
peak thread · 19 comments
280 pts
latest 20+ return · 2025-03-16
252 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

There's also this: https://www.cs.usfca.edu/~galles/visualization/Algorithms.ht...

acfaruk·280-point thread·

The IDE that I use is called jGRASP (https://www.jgrasp.org/) and it has a viewer that shows off the changes in data structures over time. Here is an example. https://www.youtube.com/watch?v=D-zrayZQj6w

Some other related visualization pages that have come up in threads over the years: http://www.cs.usfca.edu/~galles/visualization/Algorithms.htm... https://bost.ocks.org/mike/algorithms/

Looks like there may be some sort of bug. I clicked on "Hash Table" using Brave on iOS and it opened about 50 tabs, mostly "about:blank" but a number of others like stack overflow, Wikipedia, Wolfram, etc

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
3

100+ points or 50+ comments

Total points
802

reference only — not used in Hall rules or ranking

Total comments
48

reference only — not used in Hall rules or ranking

Every submission