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Web Performance

160 projects

Showing 36 of 160 projects

Keepfast
KeepfastJavaScript

A model-driven framework for monitoring and evaluating web page performance indicators like load time, size, and PageSpeed/YSlow scores.

#yslow#web-performance#nodejs
Stars103
Forks14
Last commit8 years ago
Spec - LCP - W3C
Spec - LCP - W3CBikeshed

A web performance metric that measures the render time of the largest contentful element visible in the viewport.

#performance-optimization#web-performance#web-standards
Stars103
Forks23
Last commit
emojistatic
emojistaticCSS

Generate optimized static assets (images, CSS, fonts) for displaying emoji on websites with CDN deployment.

#html5-appcache#emoji#image-optimization
Stars99
Forks13
Last commit12 years ago
ember-perf-timeline
ember-perf-timelineJavaScript

Adds Ember-specific performance instrumentation to Chrome's Timeline for debugging render times of components and outlets.

#debugging-tools#ember-addon#web-performance
Stars97
Forks10
Last commit
Grunt-yslow
Grunt-yslowJavaScript

A Grunt task for testing web page performance using YSlow and PhantomJS.

#yslow#performance-testing#web-performance
Stars90
Forks15
Last commit9 years ago
Wagtail Cache
Wagtail CachePython

A fast and simple page cache for Wagtail CMS that eliminates database hits for cached pages.

#caching#wagtail#performance-optimization
Stars90
Forks29
Last commit1 year ago
Grunt-smushit
Grunt-smushitJavaScript

Grunt plugin to optimize PNG and JPG images using the reSmush.it web service.

#build-automation#image-optimization#web-performance
Stars84
Forks18
Last commit10 years ago
blitzy
blitzyElixir

A simple distributed HTTP load tester written in Elixir for performance testing web endpoints.

#load-testing#elixir#performance-testing
Stars83
Forks9
Last commit9 years ago
dr-css-inliner
dr-css-inlinerJavaScript

Puppeteer script to inline above-the-fold CSS on a webpage for instant rendering.

#above-the-fold#puppeteer#performance-optimization
Stars82
Forks11
Last commit5 years ago
Ember Perf
Ember PerfJavaScript

Measure user-perceived performance data in your Ember.js app, tracking transitions and renders.

#frontend-performance#ember-addon#web-performance
Stars73
Forks19
Last commit3 months ago
grunt-penthouse
grunt-penthouseJavaScript

A Grunt plugin that extracts critical path CSS to improve page rendering speed.

#critical-css#performance-optimization#web-performance
Stars68
Forks10
Last commit8 years ago
critical-css-casperjs
critical-css-casperjsJavaScript

A CasperJS script that extracts critical CSS from web pages to optimize loading performance.

#above-the-fold#critical-css#performance-optimization
Stars67
Forks4
Last commit12 years ago
Runs a WebPageTest audit and prints the results as commit comment
Runs a WebPageTest audit and prints the results as commit commentJavaScript

GitHub Action that runs WebPageTest audits and posts performance results as commit comments.

#actions#devops#webpagetest
Stars57
Forks7
Last commit
xk6-playwright
xk6-playwrightGo

A k6 extension for browser automation and end-to-end web testing using Playwright's Go bindings.

#playwright#load-testing#k6
Stars54
Forks14
Last commit2 years ago
har-rs
har-rsRust

A Rust library for serializing and deserializing HTTP Archive (HAR) format data.

#serde#yaml#har
Stars51
Forks14
Last commit4 months ago
Beatrix
BeatrixJavaScript

A tool that optimizes web fonts by removing unused glyphs and converting TTF/OTF files to WOFF and WOFF2 formats.

#ttf#python-fonttools#font-subsetting
Stars49
Forks1
Last commit3 years ago
CSSVacuum
CSSVacuum

A Chrome extension that identifies critical above-the-fold CSS for optimizing the critical rendering path.

#above-the-fold#web-performance#css-optimization
Stars45
Forks4
Last commit13 years ago
Yew Interop
Yew InteropRust

A Yew library for on-demand, asynchronous loading of JavaScript and CSS resources with single-request guarantees.

#javascript-interop#interop#webassembly
Stars43
Forks3
Last commit3 years ago
ostrio:spiderable-middleware
ostrio:spiderable-middlewareJavaScript

A Node.js middleware that pre-renders JavaScript web apps for search engines and social media bots, improving SEO and link previews.

#meteor-package#spa#npm
Stars42
Forks2
Last commit26 days ago
vue3-lazyload
vue3-lazyloadJavaScript

A Vue 3 module for lazy-loading images with customizable options, CSS states, and IntersectionObserver support.

#image-optimization#web-performance#frontend
Stars37
Forks3
Last commit2 years ago
compression
compressionTypeScript

Deno HTTP compression middleware supporting gzip, deflate, and brotli encodings.

#http-middleware#server-side#http
Stars37
Forks1
Last commit3 years ago
Assetgraph-sprite
Assetgraph-spriteJavaScript

AssetGraph plugin that optimizes CSS background images by automatically generating sprite sheets.

#web-performance#sprite-generation#css-optimization
Stars36
Forks4
Last commit2 days ago
Grunt-WebPageTest
Grunt-WebPageTestJavaScript

A Grunt plugin for continuous website performance measurement using WebPageTest.

#webpagetest#performance-testing#build-tools
Stars34
Forks3
Last commit7 years ago
Gulp-smushit
Gulp-smushitJavaScript

Gulp plugin for lossless image optimization of PNG and JPG files using the reSmush.it API.

#png#image-optimization#web-performance
Stars32
Forks2
Last commit8 years ago
@fastly/performance-observer-polyfill
@fastly/performance-observer-polyfillTypeScript

A polyfill that enables the PerformanceObserver API in browsers with basic Performance Timeline support but lacking observer capabilities.

#ponyfill#polyfill#browser-api
Stars32
Forks1
Last commit
Grunt-cssshrink
Grunt-cssshrinkJavaScript

A Grunt plugin wrapper for CSS Shrink that minifies CSS files in build workflows.

#build-automation#web-performance#css-minification
Stars29
Forks4
Last commit10 years ago
Bench
BenchJavaScript

Benchmark web pages, store results in MongoDB, and display them via a built-in server with a pretty UI.

#web-performance#nodejs#mongodb
Stars25
Forks4
Last commit11 years ago
etag_plug
etag_plugElixir

A simple Elixir Plug for generating shallow ETags from HTTP responses.

#hacktoberfest#elixir#api
Stars22
Forks3
Last commit2 years ago
Gulp-cssshrink
Gulp-cssshrinkJavaScript

A Gulp plugin that shrinks CSS files using the cssshrink minifier.

#web-performance#css-minification#css-optimizer
Stars20
Forks0
Last commit10 years ago
ember-cli-workbox
ember-cli-workboxJavaScript

An Ember CLI addon that adds offline caching as a progressive enhancement using service workers, powered by Workbox.

#progressive-web-app#service-worker#workbox
Stars18
Forks10
Last commit2 years ago
Sitecore.Boost
Sitecore.BoostC#

A collection of performance patches and optimizations for Sitecore CMS installations.

#performance-optimization#web-performance#dotnet
Stars17
Forks5
Last commit9 years ago
SmartNgRX
SmartNgRXTypeScript

A library that simplifies NgRX and SignalStore usage by generating boilerplate code and providing CRUD operations with optimistic UI.

#data-synchronization#redux-pattern#web-performance
Stars16
Forks3
Last commit22 hours ago
ng-speed-test
ng-speed-testTypeScript

A lightweight Angular library for testing internet connection speed with real-time network monitoring.

#progressive-web-app#browser-api#web-performance
Stars13
Forks3
Last commit1 month ago
Csscolormin
CsscolorminJavaScript

A utility that minifies CSS colors by converting them to the shortest possible representation.

#byte-saving#web-performance#css-tooling
Stars13
Forks1
Last commit7 years ago
HTML_minifier
HTML_minifierJavaScript

A Ruby wrapper for the kangax html-minifier JavaScript library to minify HTML files.

#execjs#javascript-integration#html-minification
Stars12
Forks6
Last commit10 years ago
WebBen
WebBenC#

A cross-platform HTTP server benchmark tool for declarative performance testing and analysis.

#load-testing#performance-testing#cli-tool
Stars12
Forks0
Last commit2 years ago
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