Top PERFORMANCE GitHub Repositories & Tools (2026)

Speed up a Laravel app by caching the entire response

Zerocopy makes zero-cost memory manipulation effortless. We write `unsafe` so you don’t have to.

Lightweight, general, scalable C++ library for finite element methods

Command-line control panel for Nginx Server to manage WordPress sites running on Nginx, PHP, MySQL, and Let's Encrypt

Lenovo Legion Toolkit (LLT) is a Windows desktop utility created for Lenovo gaming laptops that replaces Lenovo Vantage, Legion Zone, and Legion Space.

Linear optimization software

Rust profiler for CPU, memory, SQL, HTTP, and async performance, with Prometheus and Grafana support.

Application Layer DoS attack simulator

Measure helps mobile teams monitor and fix crashes, ANRs, bugs, and performance issues. The open source alternative to Firebase Crashlytics.

Alba is a JSON serializer for Ruby, JRuby and TruffleRuby.

High-Performance Rendering Framework on Stream Architectures

Unsafely fast hashing algorithm 📈

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).

Sudoless Apple Silicon system monitor (native SwiftUI GUI) with ANE / Media Engine / memory-bandwidth tracking

A code analyzer for Julia. No need for additional type annotations.

Sentry SDK for .NET

Performance optimization plugin for WordPress

CSS selectors complexity and performance analyzer

Open-source, feature-rich Minecraft: Bedrock Edition server written in Java. Supports custom items, blocks, entities, full vanilla commands, advanced mob AI, and world generation. Not affiliated with Mojang AB.

Open, SQL-native time-series database for telemetry you need to keep. 34M+ records/sec ingestion, 8M+ rows/sec queries. InfluxDB Line Protocol and Telegraf compatible. Open Parquet on your storage. Single binary. S3/Azure native. Air-gap ready. AGPL-3.0.