686 Open source projects that are alternatives of or similar to Lazysizes

🔥 Highly performant, light ~1kb and configurable lazy loader in pure JS with no dependencies for responsive images, iframes and more

🌅 React lazy load images with IntersectionObserver API and Priority Hints

📖 Guide To JavaScript Async Components

LazyLoad is a lightweight, flexible script that speeds up your website by deferring the loading of your below-the-fold images, backgrounds, videos, iframes and scripts to when they will enter the viewport. Written in plain "vanilla" JavaScript, it leverages IntersectionObserver, supports responsive images and enables native lazy loading.

A fast, flexible, and small SEO-friendly lazy loader.

Responsive, SVG based HAR waterfall viewer

A collection of tiny, highly performant Array.prototype alternatives

An blazing fast 100% spec compliant, incremental javascript parser written in Typescript

A full featured Generic SNMP data collector with Web Administration Interface for InfluxDB

🚀 A statistical analysis tool for performance testing

This is an attempt to mock the new uber app into mobile web to learn how react can be used to optimize for mobile web.

A fast, concurrency-focused task automation tool.

React component to fetch image resources via web workers 🤖🤖

🚴 Call stack profiler for Python. Shows you why your code is slow!

Nanosecond scale logger inspired by https://github.com/PlatformLab/NanoLog

Lazy load modules & components in AngularJS

Fast, secure JSON library with tight ZIO integration.

Adlik: Toolkit for Accelerating Deep Learning Inference

A memoization library which only remembers the latest invocation

A list of awesome open source projects Vladimir Agafonkin is involved in.

A complete, open-source Excel-like calculation engine written in TypeScript. Includes 380+ built-in functions. Maintained by the Handsontable team⚡

Fast cross-platform HTTP benchmarking tool written in Go

HTMLImageElement extension for lazy loading.

Powerful, comprehensive (Android) application performance management platform. 360线上移动性能检测平台

Official Autoptimize repo on Github

QuickPerf is a testing library for Java to quickly evaluate and improve some performance-related properties

High performance Kafka consumer for InfluxDB. Supports collectd message formats.

Turning .NET assemblies into FPGA hardware for faster execution and lower power usage. See the Readme and https://hastlayer.com.

U++ is a C++ cross-platform rapid application development framework focused on programmer's productivity. It includes a set of libraries (GUI, SQL, Network etc.), and integrated development environment (TheIDE).

Utility to load images and React components progressively, and get code splitting for free

Model Zoo for Intel® Architecture: contains Intel optimizations for running deep learning workloads on Intel® Xeon® Scalable processors

A curated list of Awesome Go performance libraries and tools

The missing high-efficiency query API for ActiveRecord

A quick tour (or reminder) of Go performance tools

Minimal, extremely fast, lightweight Ruby framework for HTTP APIs

Boot large Ruby/Rails apps faster

Router implementation for fasthttp

Fast and easy PHP framework

📋 A Frontend Checklist for Websites

📋 A simple website launch checklist to keep track of the most important enrichment possibilities for a website.

High-performance runtime for data analytics applications

JavaMelody : monitoring of JavaEE applications

🔥 An extremely fast, React-like JavaScript library for building modern user interfaces

Penthouse is the original critical path css generator, helping you out to speed up page rendering for your websites. Supply your site's full CSS and the page you want to create the critical CSS for, and Penthouse will return the critical CSS needed to perfectly render the above the fold content of the page. Read more about critical path css here.

PHP library to manipulate and generate responsive images

Float a number of things up on a page (hearts, flowers, emojis, words ...)

A workshop covering all the tools gophers use in their day to day life

No need for .NET Events! A thread-safe, high performance & easy to use cross platform implementation of the Event Aggregator Pattern.

Nebula is an open-source and free-to-use modern C++ game engine.

Get performance measurements from React Fiber

A plugin of vue for image lazyload（vue图片懒加载插件）

Curated resources that help you build lightning fast websites

DroidTelescope（DT），Android端App性能监控框架

A performance monitoring system for running on live sites

Laravel package to find performance bottlenecks in your laravel application.

⚡️ λ PHP functional library focused on simplicity and performance

Entitas++ is a fast Entity Component System (ECS) C++11 port of Entitas C#

Blade directive to cache rendered partials in laravel

Framework for Evolutionary Event-Driven Microservices on the JVM

PerfView is a CPU and memory performance-analysis tool