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Top 11 JavaScript Emulation Projects
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SurveyJS
JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor. Add the SurveyJS white-label form builder to your JavaScript app (React/Angular/Vue3). Build complex JSON forms without coding. Fully customizable, works with any backend, perfect for data-heavy apps. Learn more.
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So, I made the tough call to take everything down and rebuild from scratch. To make things more fun, I had been using EmulatorJS, and they had just released a new version. My old code? Completely broken.
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It's really easy, just make a Next.js site that uses jQuery to iframe a WASM VM running Docker to embed https://oldweb.today and use that to run Netscape Navigator and then screen capture it and send it to a LLM for it do generate an appropriate background track and have it email the user with a magnet link where they can download the mp3 to play next to the page. What could be easier?
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vaporBoy
Gameboy / Gameboy Color Emulator PWA built with Preact. ⚛️ Powered by wasmBoy. 🎮Themed with VaporWave. 🌴🐬
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jsmoo
Multi-system, pure JavaScript (& a little AssemblyScript) emulator, with great accuracy and speed. Currently some SNES, NES, GameBoy, Master System, ZX Spectrum, and GameGear support
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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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 Emulation discussion
JavaScript Emulation related posts
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Generated by FrontPage 4.0 (no CSS/JS) website
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OldWeb.Today – JavaScript Browser Emulation
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App Should Have Been a Website (and Probably Your Game Too)
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1991 WWW-NeXT Implementation
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Ask HN: It's 1997, how do you build a website?
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SURF THE WEB LIKE IT'S 1999!
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Best compiler to write .nes cartridge ROMs for testing my own emulator?
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A note from our sponsor - SurveyJS
surveyjs.io | 18 May 2025
Index
What are some of the best open-source Emulation projects in JavaScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | jsnes | 6,204 |
| 2 | EmulatorJS | 2,157 |
| 3 | emulatorjs | 462 |
| 4 | oldweb-today | 318 |
| 5 | vaporBoy | 260 |
| 6 | jsmoo | 80 |
| 7 | rsc-server | 77 |
| 8 | zenga | 24 |
| 9 | digi-avr | 24 |
| 10 | deck | 14 |
| 11 | virtualNanoleaf | 1 |
Sponsored
JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor
Add the SurveyJS white-label form builder to your JavaScript app (React/Angular/Vue3). Build complex JSON forms without coding. Fully customizable, works with any backend, perfect for data-heavy apps. Learn more.
surveyjs.io