DanceJump For YouTube – turning videos into browser rhythm game
Hi HN, I built DanceJump as an experiment in making rhythm games more accessible. It overlays arrows on top of any YouTube video and lets you play directly in the browser using a keyboard, controller, or USB dance pad. It’s not meant to replace DDR or StepMania style simulators, but rather to make it possible to jump into songs that don’t normally have charts especially for quick or casual/family play. It currently ships as a Chrome extension because it needs tight integration with the YouTube player and low-latency input handling. Everything runs fully client-side, no accounts, no…
What it does
In the maker’s words, at launch
Hi HN, I built DanceJump as an experiment in making rhythm games more accessible. It overlays arrows on top of any YouTube video and lets you play directly in the browser using a keyboard, controller, or USB dance pad. It’s not meant to replace DDR or StepMania style simulators, but rather to make it possible to jump into songs that don’t normally have charts especially for quick or casual/family play. It currently ships as a Chrome extension because it needs tight integration with the YouTube player and low-latency input handling. Everything runs fully client-side, no accounts, no tracking. This started as a way to generate playable charts for songs that don’t normally exist in rhythm game libraries. I’d really value feedback on timing accuracy, input latency, and whether this feels usable compared to traditional setups.
Does the same job
all alternatives →- MYMake your web page dance with Rythm.js2017 · okazari.github.io · ▲183
- DWDancemusic.wtf – Quiz Game for Learning Electronic Dance Music Styles2018 · dancemusic.wtf · ▲152


- BABlynde – A new way to listen music on Youtube (user:demo, pwd:123456)2013 · blynde.com · ▲118

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Hey HN! I wanted to share something I built over the last few weeks: isometric.nyc is a massive isometric pixel art map of NYC, built with nano banana and coding agents. I didn't write a single line of code. Of course no-code doesn't mean no-engineering. This project took a lot more manual labor than I'd hoped! I wrote a deep dive on the workflow and some thoughts about the future of AI coding and creativity: http://cannoneyed.com/projects/isometric-nyc
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