Top PERFORMANCE GitHub Repositories & Tools (2026)

Brotli compression library for Go (RFC 7932), pure Go, no cgo, encoder + decoder, highly optimized

Benchmarking and monitoring automation, designed for cloud, built with .NET.

High-performance implementations of AI kernels for CPUs (x64, AArch64, RISC-V) and Intel GPUs. Powers PyTorch, TensorFlow, OpenVINO, and ONNX Runtime.

A fast and low allocation StringBuilder for .NET.

Global Extensible Open Power Manager

Smart Server Performance

A fast, statically-typed interpreted language that blends Rust-like syntax with Python's ease of use. 2-10x faster than Python, with type inference, monomorphization, and constant folding.

Developer SDK, CLI & AI search intent index for 0audit.com — Fast Website Diagnostics, Technical SEO, Security Headers & Web Performance Auditor

OpenVINO™ is an open source toolkit for optimizing and deploying AI inference

Zero-initial-JS selective activation engine. Turn server-rendered HTML into instant interactivity on intent.

A comprehensive Go handbook for software engineers covering fundamentals, idiomatic Go, concurrency, generics, testing, APIs, databases, performance, microservices, system design, and production engineering.

ReShade add-on that makes DLSS 5 Neural Rendering cheaper: peripheral compression before the model and model passes every N frames with motion-vector reprojection

High-performance C++20 + Python engine for dynamic and incremental graph analytics on evolving graphs — BFS, SSSP, connected components, triangles, k-core and PageRank.

Native open-source system monitor for macOS — Apple Silicon, SMC sensors, processes, disks, network and system health.

Profiling Tools Interfaces for GPU (PTI for GPU) is a set of Getting Started Documentation and Tools Library to start performance analysis on Intel(R) Processor Graphics easily

Framework agnostic tools for accessing data from font CDNs and providers

Optimisation mod for the dedicated/integrated server.

DBA Dash - SQL Server Monitoring Tool

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.

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