#performance

High-throughput, load-bearing Go HTTP engine — a protocol-aware dual-architecture (io_uring & epoll) that leads driver-backed and write-heavy throughput, with a familiar Gin/Echo-style API and zero-allocation hot paths.

A library to provide pooling for .NET MemoryStream objects to improve application performance.

High-performance Excel and CSV file generation powered by Rust (~7-9x faster)

Easily optimize images using PHP

Speed up a Laravel app by caching the entire response

🧵 A minimal and tiny Node.js Worker Thread Pool implementation (38KB)

PyTorch model profiler for computing MACs and parameter counts to measure deep learning model complexity.

Harper is an open-source Node.js performance platform that unifies database, cache, application, and messaging layers into one in-memory process.

High-performance multi-level cache library for Rust — L1 (Moka) + L2 (Redis) with production-grade reliability and seamless failover

A premium, lightweight Datepicker & Range Picker for modern Angular (17+). 100% Signal-driven, zoneless-ready, and mobile-optimized. Features native Web Component support for React/Vue and zero dependencies.

🩺⚡ Runtime Doctrine ORM analysis integrated into Symfony Web Profiler. Detect N+1 queries, security vulnerabilities, and performance issues during query execution.

Up to 100x faster strings for C, C++, CUDA, Python, Rust, Swift, JS, & Go, leveraging NEON, AVX2, AVX-512, SVE, GPGPU, & SWAR to accelerate search, hashing, sorting, edit distances, sketches, and memory ops 🦖

Simplified Investment & Trading Toolkit with Python & C++

🐰 Bencher - Continuous Benchmarking

A CLI to run all kinds of code quality measurements to align your team with company goals

Smooth scroll as it should be

EF Core LINQ performance analyzer and Roslyn analyzer for catching N+1 queries, client-side evaluation, sync-over-async, raw SQL risks, and other query issues at compile time.

📜 A performant virtual list/scrolling component for Svelte applications - efficiently render large scrollable lists with minimal memory usage

A fast and low allocation StringBuilder for .NET.

Caliper is an instrumentation and performance profiling library

🔤 Font metric overrides to reduce CLS

Analytics for CSS

Rayon: A data parallelism library for Rust

A React Compiler violation tracker to help gradual adoption and prevent regressions

Ultra-fast networking with Kernel TLS support for asyncio and Python

Edit and replay captured network traffic at arbitrary speeds — a suite of pcap tools for *NIX and Windows.

Mazey is a utility library for everyday frontend development.

DNS Measurement, Troubleshooting and Security Auditing Toolset

Ohayou(おはよう), HTTP load generator, inspired by rakyll/hey with tui animation.

Laravel SmartCache - Optimize Caching for Large Data