web-performance
Repositories (897)
Free browser-based internet speed test that measures what most speed tests hide — latency under load (bufferbloat). Vanilla PHP + JS, zero dependencie...
Performance-optimized fork of mintdotgg/bookshelf — interactive Three.js editorial bookshelf with 27% fewer draw calls, merged meshes, and smarter ray...
🖼️ Regrettable name, genuinely useful tool. Tell it what an image is *for* — hero, avatar, logo — and get back variants, responsive sets and alt text...
Ultra-lightweight web development under 14KB with a fast Fastify API and SQLite. Minimalist blogs, weather and tasks apps with zero framework overhead...
A privacy-first Chrome extension for collecting page diagnostics without sending data away.
Senior Frontend Engineer portfolio featuring production experience, architecture case studies, performance work, and selected open-source projects.
🔍 SEO audits that show their working. Evidence first, reasoning second, then fixes an agent can actually implement — not another "your meta descripti...
Technical audit of a real corporate website (anonymized): performance, security, accessibility, SEO and a migration proposal. Built with Astro, deploy...
Turn a Lighthouse JSON report into a Core Web Vitals summary with fixes.
A modern, performance-focused portfolio website built with vanilla JavaScript. Features include dynamic GitHub repository integration, intelligent cac...
macOS app for web page performance analysis — detailed network waterfall visualization, request timing, and resource breakdown. Built with Swift and S...
Privacy-focused browser extension for Accessibility, Performance, and SEO auditing.
Make a multi-page website feel like an instant SPA. A tiny zero-dependency progressive-enhancement script that preloads links and atomically swaps pag...
WIP: Turbo collects and monitors web performance metrics
Imager Webpack Example
One-line Go profiler for ISUCON: SQL, HTTP, reverse-proxy logs, pprof, host metrics, and benchmark diffs.
TurboWebP helps WordPress sites optimize images with server-side WebP conversion, bulk media optimization, automatic WebP delivery, and no external AP...
Homebrew formulae for Kuality CLI tools
Estudio realizado para la sección de luchadores de La Velada VI. Desarrollado con Astro.
AI-first principles, knowledge graph, and evaluator for fast, accessible spatial computing in the browser.
Speed tests say you're fast. Libreprobe shows why you're not.
An AI Agent that audits web applications for performance issues, including Core Web Vitals, LCP, CLS, bundle size, image optimization, fonts, caching,...
personal site
AI-native WebUI stress lab for localhost-first browser experiments, governed proof, and MCP-ready workflows.
Website crawler for performance and security tasks
🏆 A+ Grade Production-Ready Enterprise Solution - FAANG-grade performance testing suite for Bun runtime v1.3+ - Interactive playground showcasing eve...
Material Design Web Animations Demo - Interactive grid layouts, declarative animations, and music player UI using Web Animations API. Pure vanilla Jav...
PWA for Offline PDF Uploads with Background Sync, IndexedDB, and Workbox. React app that queues PDFs offline and auto-uploads on reconnect. Includes E...
Stable Lighthouse CI for GitHub Actions, multi-run median scoring, ban protection with jitter, SafeChrome leak prevention, Slack notifications, and...
A performance benchmark comparing website analytics providers by script size and download speed. Includes Spiderseek, Google Analytics 4, Plausible, M...
Smart prerendering for WordPress — make your content visible to search engines, social bots, and AI crawlers. Zero config. 29+ bots. ~200ms.
Stream a JS-free critical shell in the first network round-trip, then stream the rest. Zero deps.
R&D project for figuring out WebP usage options and performance
Collects functions that should be called in the future
A gulp plugin for css transport and concat
is super simple web app that shows used/un-used CSS and JS on your page
Diagnoses slow pages down to file and line, then your agent fixes it.
A practical framework for approaching front-end system design — architecture, performance, and trade-offs.
Kenzi — Software Engineer & Creative Developer. Vanilla SPA portfolio with custom router, reactive state, Three.js particle system, and zero framework...
GitHub Action — Test any website for accessibility, performance, SEO & 30+ QA dimensions with Kuality
Monitoring tool for Google Lighthouse.
Minify you html page
AFront is a powerful framework for scalable, high-performance web apps with SSR and customizable UI components. 🚀
My notes of research about web performance gaining issues.
Custom Garie plugin to extract image and bundle sizes
New CSS property content-visibility || Example Performance Test
check your webspeed (utilize puppeeter and lighthouse)
Moved back to https://github.com/imager-io/imager (simpler this way)