SpeedTest by OpenSpeedTest™ is a Free and Open-Source HTML5 Network Performance Estimation Tool Written in Vanilla Javascript and only uses built-in Web APIs like XMLHttpRequest (XHR), HTML, CSS, JS, & SVG. No Third-Party frameworks or libraries are Required. Started in 2011 and moved to OpenSpeedTest.com dedicated Project/Domain Name in 2013.
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Framework for serverless Decentralized Applications using Ethereum, IPFS and other platforms
Front-end performance heatmap bookmarklet.
🐈 CLI app helper
- javascript
- meow
- cli
- command-line
The repository host gives no description.
Ultra-high performance reactive programming
Super tiny size multi-touch gestures library for the web. You can touch this →
- touch
- gesture
- alloyfinger
- finger
A series of web components examples, related to the MDN web components documentation at https://developer.mozilla.org/en-US/docs/Web/Web_Components.
- examples
- web-components
String manipulation helpers for javascript
- javascript
- string
- utility
JavaScript & TypeScript persistent and optionally immutable data tree with cursors.
A Tiny WebGL helper Library
- webgl
- webgl2
A self-hosted UPI & COD payment gateway with zero per-transaction platform fees, universal JavaScript checkout integration, dynamic QR payments, WhatsApp OTP authentication, and automated payment verification.
A scriptable browser like PhantomJS, based on Firefox
- slimerjs
- casperjs
- firefox
- javascript
Light, Electron-based Wrapper around GraphiQL
Hypercore is a secure, distributed append-only log.
Learn JavaScript by adventuring around in the terminal.
Simple, lightweight, persistent two-way databinding
Pgtune - tuning PostgreSQL config by your hardware
- javascript
- pgtune
- hardware
- postgresql
Feather: fast, interoperable binary data frame storage for Python, R, and more powered by Apache Arrow
Runs a load test on the selected URL. Fast and easy to use. Can be integrated in your own workflow using the API.
- loadtesting
- nodejs
- performance
- testing-tools
A very fast geospatial point clustering library for browsers and Node.
- clustering
- algorithm
- computational-geometry
- javascript
A curated, battle-tested AI-coding toolkit: Claude Code plugins, subagent orchestration, quality gates, and ready-to-copy prompts, extracted from real production use.
ProgressJs is a JavaScript and CSS3 library which help developers to create and manage progress bar for every objects on the page.
⏱️ Notes and resources related to v8 and thus Node.js performance