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Top 14 JavaScript Mad Science Projects
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Project mention: Ask HN: Streaming a Bittorent Video from a Webpage? | news.ycombinator.com | 2025-11-29
WebTorrent works on the browser but I'm not sure if this is what you're asking for
https://webtorrent.io/
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AppSignal
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Project mention: Build an Attendance Tracker for Virtual Classrooms with Stream | dev.to | 2025-12-18
We will use Resend for email and PDFkit for PDF generation.
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Project mention: I Built a Game That Teaches Git by Making You Type Real Commands | dev.to | 2026-04-01
But underneath the retro charm, there's a real git engine. When you type git init in the terminal, it runs git init. When you type git commit, it creates an actual commit in an actual repository. The repository lives in your browser, powered by isomorphic-git and an in-memory filesystem, but it's real. Every command, every SHA, every ref.
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Project mention: Building an Anchor Output Fee Bumping Service — Part 4: Lightning Payment Integration | dev.to | 2026-03-10
By the end of this article, the service will generate Lightning invoices, verify payments, construct real CPFP transactions using bitcoinjs-lib, and only broadcast those transactions once payment is confirmed. In other words: a working, payment-gated fee bumping service.
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Kargo
Stop Scripting Promotions. Start Shipping with Kargo. Kargo automates promotion across dev, staging, and prod with approval gates and verification. Open source, built by the team behind Argo CD. Download now.
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webcat
Mad science p2p pipe across the web using webrtc that uses your Github private/public key for authentication and a signalhub for discovery
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
JavaScript Mad Science discussion
JavaScript Mad Science related posts
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I Built a Game That Teaches Git by Making You Type Real Commands
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Building an Anchor Output Fee Bumping Service — Part 4: Lightning Payment Integration
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Build an Attendance Tracker for Virtual Classrooms with Stream
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Ask HN: Streaming a Bittorent Video from a Webpage?
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A pure JavaScript implementation of Git for Node and browsers
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JsPDF: Generate PDFs on the Client-Side with Just JavaScript
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WebTorrent: Fast Streaming Torrent Client for the Web
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A note from our sponsor - AppSignal
www.appsignal.com | 13 Sep 2026
Index
What are some of the best open-source Mad Science projects in JavaScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | webtorrent | 31,389 |
| 2 | PDFKit | 10,704 |
| 3 | isomorphic-git | 8,350 |
| 4 | peerflix | 6,277 |
| 5 | BitcoinJS | 5,998 |
| 6 | GitTorrent | 4,762 |
| 7 | js-git | 3,847 |
| 8 | stackgl | 2,282 |
| 9 | image-to-ascii | 1,663 |
| 10 | limdu | 1,046 |
| 11 | peercast | 520 |
| 12 | webcat | 453 |
| 13 | torrent-docker | 319 |
| 14 | peerwiki | 317 |
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