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Alternatives

Products that do what DanceJump For YouTube – turning videos into browser rhythm game does

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…

  1. 1MY

    2017 · okazari.github.io

  2. 2WA

    Hey all, creator of Video.js and co-founder of Mux & Zencoder here. My team and I built this. I hope you like the themes we’ve built so far, and maybe even get inspired to build your own. I know Web Components are in a bit of a drama cycle right now. I’m happy to see them get any attention really. I’ve been pretty bullish on them since ~2013 when I started working with them, at least in the context of a widget like a video player. I’ve even given many related talks on them like this one (https://www.youtube.com/watch?v=N6Mh84SRoDg). I would never push them for a large app or…

    2024 · player.style

  3. 3DW
  4. 4IM

    Hey HN, I've been working on this side project for the past month. It generates a step-by-step tutorial guide for YouTube videos that you can follow along without watching long videos. Best suited for tutorial videos but can work for other videos aswell. No BS. Just straight to the point. The guides are generated from pure transcript so you don't have to worry about it being AI. It's my first project as a total beginner. Something I had to do inorder to get out of tutorial hell. Please let me know if you have any suggestions or if you face any problems or bugs. I would try to fix them to the…

    2024 · stepify.tech

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    Make music in your browser

    2014

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    Dance generation AI for every song!

    Feb 2026

  7. 7BA
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    YTMP104

    Play YouTube videos as audio in background without ads

    2021

  9. 9LY

    Hi HN, I made a keyboard emulator that tracks your body pose and emits the key presses accordingly. My main motivation was to make my kids move more on rainy days. I already made a couple of mini-games using the body pose [1-3], and those were definitely fun to make and play! However, once the kids learned the tricks, they got bored. I could only produce that much content myself, and soon realized that I lack time for churning out games. Finally, I decided to tap into an endless pool of PC games, preferrably simple and less addictive ones like the Gameboy and DOS games. This project has been…

    2023 · github.com

  10. 10MA

    Muxamp is a unified playlist that lets you search for and play YouTube and SoundCloud media back-to-back. It is my first web app, written entirely in JavaScript (thanks to Node.JS). Link: http://muxamp.com/ Features: * Easy track search * Drag and drop playlist rearrangement * Sharing your playlist is as easy as copy-pasting the URL * Attractive UI, thanks to Bootstrap and CSS * Free, no sign-up required This is a personal project of mine that I used to learn more about JavaScript and web programming. Feedback is appreciated! (Tell me if it sucks or not.) This project is hosted by Nodester…

    2012

  11. 11IB

    Hey HN, I’m an ex-Google engineer trying to get back into music production. I needed a way to sequence my hardware synths using AI contexts without constantly switching windows, so I built this. It runs entirely in the browser using WebMIDI. No login required. It connects to your local MIDI devices (if you're on Chrome/Edge) and lets you generate patterns. Tech stack: [React / WebMIDI API / etc]. Link: www.simplychris.ai/droplets Code is a bit messy, but it works. Feedback welcome.

    Dec 2025 · simplychris.ai

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    Instant YouTube speed control with a single click

    Jun 2026 · apps.apple.com

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  14. 14IM

    Initially, I was interested in using YouTube videos to learn languages using the simple shadowing technique. It sounds fancy, but it's simply listening and repeating. However, I found it pretty inconvenient to use the vanilla YouTube player to replay video parts. Especially when I needed to do it several times. Later I figured out that it's pretty handy to also practice instruments, given how much material is in there. Not just for mimicking songs but also for better following tutorials. So the idea is simple, you can save clips you want to practice to loop as many times as you want and come…

    2024 · loopingtube.com

  15. 15IW

    The use case am considering is to do self testing on your site yourself, rather than depending on any third party, I plan to OpenSource it. I am storing the mouse movement coordinates of the user in a javascript array which I plan to send to server every few seconds and save into DB. Where I plan to aggregate the data and show final results. What do you think? http://websymphony.github.com/labs/trackerapp/ Currently tested on only Chrome.

    2011

  16. 16AM

    I've been tinkering with a browser-based rhythm game creation tool. The pitch is simple: AI makes the music, Essentia.js figures out the beats, and you write the game logic in JS. Demo: https://rhythm-seodang-web.vercel.app/ The problem I wanted to solve: most rhythm game workflows are heavy. Proprietary editors, manual charting, fixed gameplay patterns, desktop-only. I wanted something where you could just... open a browser tab and start messing around. How it works: - Music comes from AI services (Suno/Udio). No user uploads, no copyright headaches. - Essentia.js (WASM…

    Dec 2025 · rhythm-seodang-web.vercel.app

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    DanceMe20

    Turn any photo into a dancing video

    Mar 2026

  18. 18PM

    As a side project for a hockey manager game, I created a small audio tracker, "HM Tracker," which was used to make the game's music. It is a browser-based tracker-style music workstation. All sound is procedurally generated from oscillators - no samples, no plugins. The UI lets you edit patterns on a step grid, pick instruments and chords, then export as a standalone JS music engine or WAV file. Built with vanilla JS and the Web Audio API (best experienced on a desktop browser). Made in the '90s demoscene spirit (at least the looks, anyway). Would love any feedback!

    Mar 2026 · manager.kiekko.pro

  19. 19MM
  20. 20C2

    Hi everyone, french web dev here, About 10 years ago I did a little party game in the browser inspired by Achtung die Kurve genre, it reached HN (https://news.ycombinator.com/item?id=9494619) and everything went crazy, it's still largely played in open-spaces all over the world today. This past year, I've been working on a sequel: https://curvytron2.com is live. Same goal as the first one: challenge myself, perfect my skills, have fun and give back to the internet community the best way I know; by just putting a free little fun game out there. No ads, no tracking, no…

    Jun 2026 · curvytron2.com

  21. 21MD
  22. 22SA

    Hey everyone, I'm a young developer with a penchant for music and quality software. I have spent the last 16 months developing an open-source Google Chrome extension which attempts to simplify the experience of using YouTube to play music. Streamus: http://streamus.com/ Streamus currently has 14,000 users and is the #1 trending / #4 ranked 'fun' extension in the web store. I've built it entirely from scratch while teaching myself the basics of BackboneJS (and Backbone.Marionette), RequireJS, GruntJS and many other, smaller libraries. It has been a great learning…

    2014

  23. 23WV

    Hey everyone, my friend and I created a GitHub Wrapped video for developers to showcase their activity on the platform in a more fun way. The implementation is open-source (https://github.com/rendleyhq/github-wrapped-2024) if you're interested in how it was built. To get a bit geeky, we used masks, keyframe animations, luma key shaders to remove the background from the confetti video, and some other techniques. Also, everything is rendered directly in the browser!! I'm curious to hear your thoughts on the rendering performance, especially if you're running this on your…

    2024 · rendley.com

  24. 24VC

    Hi HN! Lifelong avid gamer here, hugely passionate about WASM and WebGPU. I firmly believe that these technologies will enable console and PC quality titles to be accessible through a browser, and with this, we'll need a new discoverability layer. Looking online, platforms like CrazyGames and Poki cater to a casual/hypercasual demographic, and I couldn't find anything out there that was for me, a core gamer that typically uses Steam and consoles. So I vibe coded my own! It features WASM ports of classic games, as well as some indie Unity titles. The goal is to host mainly WebGPU titles…

    May 2026 · gameghost.manus.space

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