domain: performance
1338 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| seiginonakama/BlockCanaryEx BlockCanaryEx is an Android library, based on BlockCanary, that detects UI thread blocks and identifies the heavy methods causing them. It … | 32 | 2172 | abandoned |
| GoogleChromeLabs/preload-webpack-plugin A webpack plugin that automatically injects <link rel='preload'> and <link rel='prefetch'> tags for asynchronous JavaScript chunks into HTM… | 10 | 2145 | abandoned |
| grafana-cold-storage/phlare Grafana Phlare was a horizontally-scalable, highly-available, multi-tenant continuous profiling aggregation system written in Go, designed … | 10 | 2023 | abandoned |
| WICG/virtual-scroller A WICG exploration of a built-in `<virtual-scroller>` web platform element that renders only visible items from very large lists while pres… | 10 | 1995 | abandoned |
| friendlyrobotnyc/TinyDancer An Android library that displays a real-time FPS overlay using the Choreographer, with color-coded indicators based on the percentage of ti… | 10 | 1891 | abandoned |
| tapwork/HeapInspector-for-iOS HeapInspector is an Objective-C debug library that records memory heap snapshots with backtraces directly on an iOS device, letting develop… | 23 | 1888 | abandoned |
| pmwkaa/sophia Sophia is a transactional MVCC key-value/row storage engine implemented as a small, dependency-free C library with a minimalistic, FFI-frie… | 54 | 1885 | abandoned |
| speedracer/speedracer Speedracer is a performance runner, like a test runner but for performance, that executes 'race' scripts in headless Chrome and collects de… | 23 | 1849 | abandoned |
| fastos/tcpdive Tcpdive is a TCP performance profiling tool that monitors and analyzes TCP internals from a running Linux kernel using SystemTap, requiring… | 32 | 1846 | abandoned |
| bahmutov/code-snippets A collection of JavaScript code snippets designed to be run in Chrome DevTools for performance profiling, debugging, and testing web pages.… | 23 | 1822 | abandoned |
| facebookarchive/redis-faina A Python command-line tool from Facebook that parses the output of Redis' MONITOR command and aggregates counter and timing statistics abou… | 10 | 1776 | abandoned |
| Lucifier129/react-lite react-lite is a lightweight JavaScript reimplementation of React v15.x core APIs, including Virtual DOM, optimized for minimal script size … | 23 | 1712 | abandoned |
| stagemonitor/stagemonitor Stagemonitor is an open-source application performance monitoring agent for Java server applications that integrates with Elasticsearch, Gr… | 10 | 1695 | abandoned |
| filamentgroup/criticalCSS CriticalCSS is a Node.js library that identifies the above-the-fold CSS for a given page or file and writes it to a file for inlining. It i… | 10 | 1692 | abandoned |
| xiaojiaqi/10billionhongbaos A Go-based stress-testing project that simulates the 2015 WeChat red envelope scenario, supporting one million concurrent users on a single… | 32 | 1688 | abandoned |
| openresty/openresty-systemtap-toolkit A collection of SystemTap-based real-time analysis and diagnostics tools for OpenResty, NGINX, LuaJIT, and ngx_lua. It provides scripts for… | 32 | 1668 | abandoned |
| jamiebuilds/babel-react-optimize A Babel preset and collection of plugins that optimize compiled React code, such as hoisting constant JSX elements, inlining elements, stri… | 32 | 1666 | abandoned |
| facebookarchive/libphenom libPhenom is a C eventing framework from Facebook for building high-performance, scalable systems, offering job scheduling, buffered stream… | 10 | 1663 | abandoned |
| uber-archive/cpustat cpustat is a Linux command-line tool that samples CPU utilization and saturation for every process at high frequency and summarizes the sam… | 10 | 1650 | abandoned |
| tideways/php-xhprof-extension A PHP C extension (tideways_xhprof) providing hierarchical, XHProf-compatible callgraph profiling for PHP 7+ with low overhead. The project… | 10 | 1619 | abandoned |
| addyosmani/tmi TMI (Too Many Images) is a Node.js CLI tool that analyzes a web page via Google PageSpeed Insights to report its total image weight and ide… | 23 | 1615 | abandoned |
| facebookarchive/flashcache Flashcache is a Linux kernel module (device-mapper target) that provides a general-purpose write-back block cache, using an SSD to cache re… | 10 | 1601 | abandoned |
| microsoft/Pyjion Pyjion is a just-in-time (JIT) compilation library for CPython built on the .NET CoreCLR JIT compiler, exposed through a C API that allows … | 10 | 1592 | abandoned |
| facebookarchive/profilo Profilo is an Android library for collecting performance traces from production builds of an app. It was developed by Facebook and is now a… | 10 | 1591 | abandoned |
| mtjs/mt MT is a JavaScript module management framework for mobile web pages, built by Tencent's mobile front-end team. It loads AMD-style modules a… | 32 | 1528 | abandoned |
| typ0520/fastdex fastdex is a Gradle plugin and Android Studio plugin that speeds up Android APK build times by caching pre-built dex files and only recompi… | 23 | 1488 | abandoned |
| joedicastro/vps-comparison A Python and Ansible-based tool that runs automated benchmark tests across VPS providers and publishes reproducible comparison results. It … | 32 | 1432 | abandoned |
| xk/node-threads-a-gogo TAGG (threads_a_gogo) is a native Node.js module providing an asynchronous, evented API for running CPU-bound JavaScript tasks on backgroun… | 23 | 1400 | abandoned |
| ebidel/appmetrics.js A tiny (<1kb gzipped) JavaScript library that wraps the User Timing API to measure durations of events in web apps. It annotates the DevToo… | 23 | 1363 | abandoned |
| heroku/heroku-pg-extras A Heroku CLI plugin providing shortcut commands for common Postgres introspection queries, such as cache hit ratios, index usage, locks, an… | 10 | 1354 | abandoned |
| lafikl/steady.js Steady.js is a small JavaScript module for running logic on the onscroll event without performance regressions, using media-query-like cond… | 23 | 1348 | abandoned |
| twitter-archive/iago Iago is a load generator from Twitter for producing realistic traffic against services, written in Scala on the JVM. Users write Scala or J… | 10 | 1334 | abandoned |
| twitter/fatcache Fatcache is a networked, memcached-protocol-compatible cache that uses SSD storage as an extension of DRAM, allowing terabyte-scale caching… | 10 | 1299 | abandoned |
| sakra/cotire Cotire is a CMake module that speeds up C/C++ builds by automatically setting up precompiled headers and single compilation unit (unity) bu… | 10 | 1297 | abandoned |
| Zaplib/zaplib Zaplib is an open-source Rust/WebAssembly framework for speeding up web applications by incrementally porting slow JavaScript code to Rust.… | 32 | 1270 | abandoned |
| paulirish/pwmetrics PWMetrics is a CLI tool and Node.js library that gathers progressive web performance metrics (like First Contentful Paint and Largest Conte… | 23 | 1239 | abandoned |
| twitter/rsc Rsc (Reasonable Scala compiler) is an experimental reimplementation of the Scala compiler focused on compilation speed, developed by Twitte… | 32 | 1233 | abandoned |
| aesara-devs/aesara Aesara is a Python library for defining, optimizing, and efficiently evaluating mathematical expressions over multi-dimensional arrays, for… | 10 | 1219 | abandoned |
| peter-lawrey/Java-Chronicle An ultra-low-latency, high-throughput persisted messaging and event-driven in-memory database library for Java, supporting durable distribu… | 32 | 1218 | abandoned |
| dtrace4linux/linux A Linux port of Sun's DTrace dynamic tracing framework, delivered as a dynamically loadable kernel module plus userland tools. It brings DT… | 32 | 1203 | abandoned |
| michaeleisel/zld zld is a fork of Apple's open-source linker (ld) optimized to make the linking phase of large projects substantially faster, intended as a … | 10 | 1192 | abandoned |
| bigpipe/bigpipe BigPipe is a Node.js web framework that decomposes pages into reusable chunks called Pagelets and pipelines them through execution stages i… | 23 | 1174 | abandoned |
| WICG/EventListenerOptions A WICG proposal and polyfill extending the DOM event pattern with EventListenerOptions, allowing developers to register passive event liste… | 10 | 1158 | abandoned |
| node-inspector/v8-profiler Node.js native bindings (C++) to the V8 profiler, exposing CPU profiling and heap snapshot APIs programmatically. It integrates with node-i… | 23 | 1125 | abandoned |
| davecheney/gcvis gcvis is a Go CLI tool that visualizes Go program garbage collector trace data (GODEBUG=gctrace output) in real time via a browser graph. I… | 10 | 1094 | abandoned |
| c4milo/node-webkit-agent A Node.js library implementing the Chrome Developer Tools protocol so you can remotely profile and debug Node applications using the WebKit… | 32 | 1093 | abandoned |
| snazy/ohc OHC is a Java library providing a large off-heap (off-heap memory) cache with linked and chunked implementations, TTL support, and LRU evic… | 32 | 1093 | abandoned |
| lafikl/perfBar PerfBar is a lightweight JavaScript library for collecting and displaying website performance metrics directly in the browser, with support… | 23 | 1091 | abandoned |
| facebookarchive/FBAllocationTracker An iOS library for introspecting live Objective-C objects by swizzling alloc/dealloc, allowing queries of all instances of a class and gene… | 10 | 1089 | abandoned |
| filamentgroup/Southstreet SouthStreet is Filament Group's collection of front-end tools and workflow for building fast, accessible cross-device web applications usin… | 10 | 1077 | abandoned |
| SamSaffron/MiniProfiler MiniProfiler is a simple but effective mini-profiler for ASP.NET MVC, ASP.NET, and Ruby, providing ADO.NET query profiling and lightweight … | 32 | 1043 | abandoned |
| stoyan/cssshrink cssshrink is a Node.js library that minifies CSS, applying aggressive optimizations like converting hex colors to shorter names. It also of… | 32 | 1043 | abandoned |
| topazproject/topaz Topaz is an implementation of the Ruby programming language written in Python using the RPython toolchain from PyPy. It compiles to a nativ… | 32 | 1007 | abandoned |
| webpack Webpack is a static module bundler for JavaScript and other assets, packing many modules into a few optimized bundles for the browser. It s… | 98 | 65962 | stable |
| llvm/llvm-project LLVM is a modular compiler and toolchain infrastructure providing libraries and tools for building optimized compilers, optimizers, and run… | 99 | 39958 | stable |
| tokio-rs/tokio Tokio is an event-driven, non-blocking I/O runtime for writing asynchronous applications in Rust. It provides a multithreaded work-stealing… | 97 | 33016 | stable |
| cloudflare/pingora Pingora is a Rust framework from Cloudflare for building fast, reliable, and programmable network services such as HTTP proxies and load ba… | 84 | 27278 | stable |
| google/flatbuffers FlatBuffers is Google's cross-platform, memory-efficient serialization library that stores data in a binary format you can read directly wi… | 84 | 26411 | stable |
| v8/v8 V8 is Google's open-source JavaScript engine that implements ECMAScript (ECMA-262), written in C++. It powers Chromium and Node.js and can … | 77 | 25211 | active |
| openjdk/jdk The main-line development repository for the OpenJDK, the open-source implementation of the Java Platform, Standard Edition. It contains th… | 77 | 23273 | active |
| Oxc Oxc (Oxidation Compiler) is a collection of high-performance JavaScript and TypeScript tools written in Rust, including the Oxlint linter, … | 93 | 22506 | active |
| oracle/graal GraalVM is a high-performance JDK distribution that includes an advanced just-in-time compiler and Native Image, which compiles Java applic… | 67 | 21674 | stable |
| Atlas-OS/Atlas AtlasOS is an open-source modification to Windows that applies privacy, usability, and performance optimizations via an AME Wizard playbook… | 71 | 21375 | active |
| brettwooldridge/HikariCP HikariCP is a lightweight, high-performance JDBC connection pool for Java applications. It is a production-ready, 'zero-overhead' library w… | 71 | 21192 | stable |
| compiler-explorer/compiler-explorer Compiler Explorer is an interactive web application for compiling code in 30+ languages (C, C++, Rust, Go, Haskell, Swift, and more) and vi… | 77 | 19006 | active |
| µWebSockets µWebSockets is a C/C++ web server library providing highly optimized HTTP and WebSocket handling with a built-in URL router and pub/sub fea… | 96 | 18966 | stable |
| julienschmidt/httprouter HttpRouter is a lightweight, high-performance HTTP request router (mux) for Go that supports path variables and method matching using a com… | 23 | 17126 | stable |
| tigerbeetle/tigerbeetle TigerBeetle is a purpose-built financial transactions database written in Zig, designed for mission-critical safety and performance in onli… | 93 | 16908 | active |
| winsiderss/systeminformer System Informer (formerly Process Hacker) is a free, open-source, multi-purpose Windows tool for monitoring system resources, debugging sof… | 67 | 15701 | active |
| gpujs/gpu.js GPU.js is a JavaScript acceleration library for GPGPU that automatically transpiles JavaScript functions into shader language (GLSL) and co… | 97 | 15370 | active |
| Nuitka/Nuitka Nuitka is an optimizing Python compiler written in Python that translates Python programs into C and produces standalone executables or ext… | 77 | 15111 | active |
| sogou/workflow Sogou C++ Workflow is an enterprise-level C++ framework for parallel computing and asynchronous networking, powering Sogou's back-end servi… | 93 | 14418 | stable |
| memcached/memcached Memcached is a high-performance, multithreaded, distributed in-memory key-value cache store used to speed up dynamic web applications by al… | 73 | 14259 | stable |
| OpenResty OpenResty is a full-fledged web platform that bundles an enhanced Nginx core, LuaJIT, and many Nginx modules and Lua libraries into a singl… | 82 | 14012 | stable |
| apache/tvm Apache TVM is an open machine learning compiler framework that takes pre-trained models and compiles them into optimized, deployable module… | 90 | 13691 | active |
| Cap'n Proto Cap'n Proto is an extremely fast binary data interchange format and capability-based RPC system, designed so data can be read directly from… | 77 | 13169 | stable |
| web-infra-dev/rspack Rspack is a fast, Rust-based JavaScript module bundler for the web that modernizes the webpack API to serve as a drop-in replacement. It of… | 95 | 12873 | active |
| deepseek-ai/FlashMLA FlashMLA is DeepSeek's library of optimized CUDA attention kernels implementing Multi-head Latent Attention (MLA), including dense and toke… | 62 | 12872 | active |
| welldone-software/why-did-you-render why-did-you-render is a JavaScript library that monkey patches React to notify developers about potentially avoidable re-renders of compone… | 69 | 12512 | active |
| odin-lang/Odin Odin is a general-purpose, statically typed systems programming language designed for high performance and data-oriented programming, posit… | 98 | 11791 | active |
| LMCache/LMCache LMCache is a KV cache management layer for LLM inference that stores, compresses, and reuses KV caches across requests, sessions, and servi… | 86 | 11460 | active |
| facebook/hermes Hermes is a JavaScript engine developed by Meta, optimized for fast start-up of React Native apps through ahead-of-time static optimization… | 67 | 11272 | active |
| giampaolo/psutil psutil is a cross-platform Python library for retrieving information about running processes and system utilization (CPU, memory, disks, ne… | 77 | 11266 | stable |
| panjf2000/gnet gnet is a high-performance, lightweight, event-driven networking framework written in pure Go, built on epoll and kqueue with a reactor pat… | 84 | 11235 | stable |
| Numba Numba is an open-source NumPy-aware JIT compiler that translates a subset of Python and NumPy code into fast machine code using LLVM. It su… | 94 | 11129 | stable |
| NVIDIA/cutlass CUTLASS is NVIDIA's collection of CUDA C++ template abstractions and Python DSLs for implementing high-performance GEMM and related linear … | 99 | 10317 | active |
| pastelsky/bundlephobia Bundlephobia is a web service and API that reports the bundle size and performance cost of npm packages, including historical trends and pa… | 67 | 9581 | active |
| scylladb/seastar Seastar is an open-source C++ framework for building high-performance, non-blocking, asynchronous server-side applications. It uses a share… | 77 | 9342 | stable |
| terser/terser Terser is a JavaScript parser, mangler, and compressor toolkit for ES6+ that serves as the industry-standard minifier, forked from the unma… | 77 | 9326 | stable |
| Boost C++ Libraries Boost is a collection of free, peer-reviewed, portable C++ source libraries organized as a modularized super-project. It provides widely us… | 94 | 8553 | stable |
| RoadRunner RoadRunner is a high-performance PHP application server and process manager written in Go, extensible through a plugin system. It runs PHP … | 96 | 8499 | stable |
| django-commons/django-debug-toolbar A configurable set of panels for Django that display debug information about the current request/response, such as SQL queries, timings, an… | 95 | 8379 | stable |
| cilium/ebpf ebpf-go is a pure-Go library for loading, modifying, and attaching eBPF programs to hooks in the Linux kernel, with no dependency on libbpf… | 92 | 7933 | stable |
| parcel-bundler/lightningcss Lightning CSS is an extremely fast CSS parser, transformer, bundler, and minifier written in Rust, usable as a Rust or JavaScript library, … | 92 | 7665 | active |
| tile-ai/tilelang TileLang is a Pythonic domain-specific language and compiler (built on TVM) for writing high-performance GPU/CPU/accelerator kernels such a… | 88 | 7288 | active |
| TheTom/turboquant_plus TurboQuant+ is a Python reference implementation of the TurboQuant KV cache compression method (ICLR 2026), using PolarQuant codebooks and … | 56 | 7006 | active |
| JVM-Sandbox JVM-Sandbox is a real-time, non-invasive AOP framework container for the JVM, built on Java Instrumentation to dynamically enhance methods … | 48 | 6953 | active |
| sysown/proxysql ProxySQL is a high-performance, protocol-aware SQL proxy for MySQL, MariaDB, Percona Server, and PostgreSQL that sits between applications … | 94 | 6904 | stable |
| dominikh/go-tools Staticcheck is an advanced linter for the Go programming language that uses static analysis to find bugs, performance issues, and simplific… | 90 | 6860 | active |
| haproxy/haproxy HAProxy is a fast, reliable open-source reverse proxy and load balancer for TCP and HTTP-based applications, providing high availability, T… | 77 | 6809 | stable |