1.fmtlib / fmt
A modern formatting library
Ranked by Attention Score: stars gained over the last 90 complete days
1–100 of 166 by Attention Score · Aug 5, 2026 – Nov 2, 2026 (UTC)
A modern formatting library
Smooth scroll as it should be
A modern load testing tool, using Go and JavaScript
🚀 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
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.
Frame profiler
Fast and low overhead web framework, for Node.js
A declarative, efficient, and flexible JavaScript library for building user interfaces.
High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, AVIF and TIFF images. Uses the libvips library.
⚡️ Express inspired web framework written in Go
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.
Firefox user.js for optimal privacy and security. Your favorite browser, but better.
Write scalable load tests in plain Python 🚗💨
Open Machine Learning Compiler Framework
📈 A small, fast chart for time series, lines, areas, ohlc & bars
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.
Continuous Profiling Platform. Debug performance issues down to a single line of code
The full-featured Golang Development Framework skeleton
Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services
The most widely used Python to C compiler
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.
🎮 The only Front-End Performance Checklist that runs faster than the others
FusionCache is an easy to use, fast and robust hybrid cache with advanced resiliency features.
Relocate resource intensive third-party scripts off of the main thread and into a web worker. 🎉
Next-gen browser and mobile automation test framework for Node.js
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.
An opinionated GoLang framework for accelerated microservice development. Built in support for databases and observability.
Powerful .NET library for benchmarking
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.
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.
Pure Go production-grade regex engine with SIMD optimizations. Up to 3-3000x+ faster than stdlib.
A high performance caching library for Go
一款面向泛前端产品研发全生命周期的效率平台。
⚡️Faster subsequent page-loads by prefetching in-viewport links during idle time
Integrated online shop based on Laravel and the Aimeos e-commerce framework for ultra-fast online shops, scalable marketplaces, complex B2B applications and #gigacommerce
APM, (Application Performance Management) tool for large-scale distributed systems.
A high performance memory-bound Go cache
🐰 Bencher - Continuous Benchmarking
immudb - immutable database based on zero trust, SQL/Key-Value/Document model, tamperproof, data change history
A PHP framework for console artisans
Fast cross-platform HTTP benchmarking tool written in Go
why-did-you-render by Welldone Software monkey patches React to notify you about potentially avoidable re-renders. (Works with React Native as well.)
Micro second messaging that stores everything to disk
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! 🚀
Efficient cache for gigabytes of data written in Go.
High Performance data structures and utility methods for Java
Optimizing compiler for React
:fire: An extremely fast, React-like JavaScript library for building modern user interfaces
Entitas is a super fast Entity Component System (ECS) Framework specifically made for C# and Unity
Pgtune - tuning PostgreSQL config by your hardware
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.
Fortio load testing library, command line tool, advanced echo server and web UI in go (golang). Allows to specify a set query-per-second load and record latency histograms and other useful stats.
React components for efficiently rendering large lists and tabular data
Node.js test runner that lets you develop with confidence 🚀
Python Performance Benchmark Suite
OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text and Geospatial models in one Multi-Model product. OrientDB can run distributed (Multi-Master), supports SQL, ACID Transactions, Full-Text indexing and Reactive Queries.
TYPO3 e-commerce extension for ultra fast online shops, scalable marketplaces, complex B2B applications and #gigacommerce
Alba is a JSON serializer for Ruby, JRuby and TruffleRuby.
Thoughts on Go performance optimization
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.
ArrayFire: a general purpose GPU library.
Professional ECU Diagnostics & Tuning Suite
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
Speed up a Laravel app by caching the entire response
Edit and replay captured network traffic at arbitrary speeds — a suite of pcap tools for *NIX and Windows.
A PostgreSQL assistant for developers Understand, optimize, and improve your PostgreSQL database with ease.
JavaScript talks you have to see 👀 on functional programming, performance, frameworks, React, debugging, leveling up, and more!
JRuby, an implementation of Ruby on the JVM
PHP Benchmarking framework
Ultra fast and low latency asynchronous socket server & client C++ library with support TCP, SSL, UDP, HTTP, HTTPS, WebSocket protocols and 10K connections problem solution
Tanel Poder's Performance & Troubleshooting Tools for Oracle Databases
Automation-friendly framework for Continuous Testing by
Visualize Erlang/Elixir Nodes On The Command Line
Make optimisation of images part of your automated build process
Fast Compiler for C# Expression Trees and the lightweight LightExpression alternative. Diagnostic and code generation tools for the expressions.
Generate and read big Excel files quickly
eBPF based always-on CPU/GPU profiler auto-discovering targets in Kubernetes and systemd, zero code changes or restarts needed!
🔥 Highly performant, light ~1kb and configurable lazy loader in pure JS with no dependencies for responsive images, iframes and more
JavaMelody : monitoring of JavaEE applications
A fast float to string algorithm based on schubfach.
A curated, opinionated collection of tools and resources dedicated to Performance Engineering, covering both Observability and Performance Testing.
:ballot_box_with_check: [Cheatsheet] Tips and tricks for Android Development
A C++ GPU Computing Library for OpenCL
A caching library with advanced concurrency features designed to make I/O heavy applications robust and highly performant
DryIoc is fast, small, full-featured IoC Container for .NET
Load and performance benchmark tool
Cross-platform test runner
Tiny vanilla JS plugin to display large data sets easily
Lightweight, type-safe database query builder for Go with zero production dependencies. JOINs, subqueries, CTEs, batch operations, LRU statement cache. PostgreSQL, MySQL, SQLite.
🔮 Libraries & tools for enabling Machine Learning driven user-experiences on the web
Web performance library for measuring all performance vitals metrics
Boot large Ruby/Rails apps faster
A powerful caching library for Elixir with support for transactions, fallbacks and expirations
A RocksDB compliant high performance scalable embedded key-value store
Fast Binary Encoding is ultra fast and universal serialization solution for C++, C#, Go, Java, JavaScript, Kotlin, Python, Ruby, Swift
High-performance TUI framework for Go with DDD + Rich model inspired architecture, perfect Unicode, and Elm-inspired design. Modern alternative to Bubbletea/Lipgloss.
The tool to avoid various issues due to inconsistencies and inefficiencies between a database schema and application models.