1.darkroomengineering / lenis
Smooth scroll as it should be
Ranked by Attention Score: stars gained over the last 7 complete days
95 repositories by Attention Score · Oct 27, 2026 – Nov 2, 2026 (UTC)
Smooth scroll as it should be
⚡ Pi, the coding agent, compiled ahead of time to one native executable. 10× faster to start, 7× less CPU and 4.5× less memory than Pi on Node. Linux, macOS, Windows, ARM64 and Android (Termux).
🚀 An open and lightweight modification to Windows, designed to optimize performance, privacy and usability.
A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware. Brought to you by Winsider Seminars & Solutions, Inc. @ https://windows-internals.com
A modern load testing tool, using Go and JavaScript
Tips & tricks to tune .NET workloads for better perf (mostly, targeting benchmarks).
Frame profiler
Gin is a high-performance HTTP web framework written in Go. It provides a Martini-like API but with significantly better performance—up to 40 times faster—thanks to httprouter. Gin is designed for building REST APIs, web applications, and microservices.
Fast and low overhead web framework, for Node.js
Engine-level performance fix for Oblivion Remastered (UE5): higher fps in towns, far fewer travel hitches, same image. Source, benchmark and docs.
A declarative, efficient, and flexible JavaScript library for building user interfaces.
Open Machine Learning Compiler Framework
📈 A small, fast chart for time series, lines, areas, ohlc & bars
High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, AVIF and TIFF images. Uses the libvips library.
Firefox user.js for optimal privacy and security. Your favorite browser, but better.
Write scalable load tests in plain Python 🚗💨
Nuitka is a Python compiler written in Python. It's fully compatible with Python 2.6, 2.7, 3.4-3.14. You feed it your Python app, it does a lot of clever things, and spits out an executable or extension module.
Pure Go production-grade regex engine with SIMD optimizations. Up to 3-3000x+ faster than stdlib.
The most widely used Python to C compiler
Next-gen browser and mobile automation test framework for Node.js
Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services
⚡️ Express inspired web framework written in Go
Powerful .NET library for benchmarking
A modern formatting library
🎮 The only Front-End Performance Checklist that runs faster than the others
Continuous Profiling Platform. Debug performance issues down to a single line of code
The complete load testing platform. Everything you need for production-grade load tests. Serverless & distributed. Load test with Playwright. Load test HTTP APIs, GraphQL, WebSocket, and more. Use any Node.js module.
The Linux perf GUI for performance analysis.
The full-featured Golang Development Framework skeleton
FusionCache is an easy to use, fast and robust hybrid cache with advanced resiliency features.
WHATWG-compliant and fast URL parser written in modern C++, part of Internet Archive, Node.js, Clickhouse, Redpanda, Kong, Telegram, Adguard, Datadog and Cloudflare Workers.
🐰 Bencher - Continuous Benchmarking
High performance and SEO friendly lazy loader for images (responsive and normal), iframes and more, that detects any visibility changes triggered through user interaction, CSS or JavaScript without configuration.
why-did-you-render by Welldone Software monkey patches React to notify you about potentially avoidable re-renders. (Works with React Native as well.)
Integrated online shop based on Laravel and the Aimeos e-commerce framework for ultra-fast online shops, scalable marketplaces, complex B2B applications and #gigacommerce
A high performance caching library for Go
:fire: An extremely fast, React-like JavaScript library for building modern user interfaces
immudb - immutable database based on zero trust, SQL/Key-Value/Document model, tamperproof, data change history
Open-source library of optimized deep learning operations (matmul, convolution, attention) for CPUs (x64, AArch64, RISC-V) and Intel GPUs. Used by PyTorch, TensorFlow, OpenVINO, and ONNX Runtime.
Make optimisation of images part of your automated build process
Pgtune - tuning PostgreSQL config by your hardware
Brotli compression library for Go (RFC 7932), pure Go, no cgo, encoder + decoder, highly optimized
How to improve NGINX performance, security, and other important things.
Efficient cache for gigabytes of data written in Go.
Fast cross-platform HTTP benchmarking tool written in Go
JRuby, an implementation of Ruby on the JVM
Micro second messaging that stores everything to disk
High Performance data structures and utility methods for Java
One of the World's Fastest .NET CSV Parsers. Modern, minimal, fast, zero allocation, reading and writing of separated values (`csv`, `tsv` etc.). Cross-platform, trimmable and AOT/NativeAOT compatible with blazing fast SIMD vectorized parsing.
Python Performance Benchmark Suite
A C/C++ header file for fast 32-bit division remainders (and divisibility tests) on 64-bit hardware.
Professional ECU Diagnostics & Tuning Suite
一款面向泛前端产品研发全生命周期的效率平台。
Thoughts on Go performance optimization
Entitas is a super fast Entity Component System (ECS) Framework specifically made for C# and Unity
ArrayFire: a general purpose GPU library.
Ultra fast and low latency asynchronous socket server & client C# .NET Core library with support TCP, SSL, UDP, HTTP, HTTPS, WebSocket protocols and 10K connections problem solution
JavaMelody : monitoring of JavaEE applications
Speed up a Laravel app by caching the entire response
Collect performance metrics for your library/application.
TYPO3 e-commerce extension for ultra fast online shops, scalable marketplaces, complex B2B applications and #gigacommerce
Visualize Erlang/Elixir Nodes On The Command Line
A caching library with advanced concurrency features designed to make I/O heavy applications robust and highly performant
A curated, opinionated collection of tools and resources dedicated to Performance Engineering, covering both Observability and Performance Testing.
Node.js test runner that lets you develop with confidence 🚀
Optimizing compiler for React
Relocate resource intensive third-party scripts off of the main thread and into a web worker. 🎉
Tiny vanilla JS plugin to display large data sets easily
JavaScript talks you have to see 👀 on functional programming, performance, frameworks, React, debugging, leveling up, and more!
A PHP framework for console artisans
LaravelS is an out-of-the-box adapter between Laravel/Lumen and Swoole.
Web performance library for measuring all performance vitals metrics
A .NET library to run C# code in parallel on the GPU through DX12, D2D1, and dynamically generated HLSL compute and pixel shaders, with the goal of making GPU computing easy to use for all .NET developers! 🚀
Mirror kept for legacy. Moved to https://github.com/llvm/llvm-project
Boot large Ruby/Rails apps faster
App Metrics is an open-source and cross-platform .NET library used to record and report metrics within an application.
Find memory issues & leaks in your iOS app without instruments
A flamegraph generator for Postgres EXPLAIN ANALYZE output.
Edit and replay captured network traffic at arbitrary speeds — a suite of pcap tools for *NIX and Windows.
Alba is a JSON serializer for Ruby, JRuby and TruffleRuby.
The modular and type-safe form library for SolidJS, Qwik and Preact
The tool to avoid various issues due to inconsistencies and inefficiencies between a database schema and application models.
Performance-Bookmarklet helps to analyze the current page through the Resource Timing API, Navigation Timing API and User-Timing - requests by type, domain, load times, marks and more. Sort of a light live WebPageTest.
DryIoc is fast, small, full-featured IoC Container for .NET
Generate and read big Excel files quickly
High performance reactive SQL client written in Java
Rich-powered CLI that breaks each HTTP request into DNS, connect, TLS, wait, and transfer phases with waterfall timelines, compact summaries, or metrics-only output.
:rocket: Modern cross-platform HTTP load-testing tool written in Go
⚡Metrics to help understand page speed and user experience
Automon combines the power of AOP (AspectJ) with monitoring or logging tools you already use to declaratively trace and monitor your Java code, the JDK, and 3rd party libraries.
MoniGo is a performance monitoring library for Go apps, offering real-time insights into service-level and function-level metrics. With an intuitive UI, it enables developers to track and optimize performance. Get your Go app's dashboard up in just 10 seconds!
Framework to evaluate peformance of ROS 2
Performance visualisation tools
hypermatch is a high-performance ⚡ Go library designed for rapid matching of a large number of rules to events. It processes thousands of events per second 🚀 against extensive rule sets in-memory with minimal latency ⏱️.
Lightweight, type-safe database query builder for Go with zero production dependencies. JOINs, subqueries, CTEs, batch operations, LRU statement cache. PostgreSQL, MySQL, SQLite.