High Performance GitHub Repositories (2026) · Open Source Tools

A high-performance inference engine for AI models

OpenLake is a high performance storage engine for efficient LLM inference and GPU Training

Open source, composable payments platform | PCI compliant | SaaS and Self-host options | Enables connectivity to multiple payment, payout, fraud, vault and tokenization providers | Uplifts authorization with intelligent routing and revenue recovery | Reduce payment processing costs with cost observability | Reduces payment ops with reconciliation

Build smaller, faster, and more secure desktop and mobile applications with a web frontend.

A fast, multi-threaded Redis® and Valkey alternative written in Rust: drop-in compatible, with full-text and vector search built in

A high-performance observability data pipeline.

TLC is a model checker for specifications written in TLA+. The TLA+Toolbox is an IDE for TLA+.

Fast and exact implementation of the C++ from_chars functions for number types: 4x to 10x faster than strtod, part of GCC 12, MySQL, DuckDB, Chromium, Redis and WebKit/Safari

A fast PostgreSQL Database Client Library for Python/asyncio.

SeaTunnel is a multimodal, high-performance, distributed, massive data integration tool.

High-Performance Rendering Framework on Stream Architectures

C++14 concurrent lock-free low-latency queue.

AIStore: scalable storage for AI applications

The fastest binary serializer for C#. Source-generated, zero-allocation, thread-safe and safe on untrusted input: .NET, Native AOT, Unity, Godot and HybridCLR, with Go, Rust and TypeScript writing and reading the same bytes.

Connect threads, processes, hosts, and languages without a broker.

An event loop for asyncio written in Rust

DPDK & SR-IOV CNI plugin

Compiler for multiple programming models (SYCL, C++ standard parallelism, HIP/CUDA) for CPUs and GPUs from all vendors: The independent, community-driven compiler for C++-based heterogeneous programming models. Lets applications adapt themselves to all the hardware in the system - even at runtime!

a fast systems programming language for high-performance software and gamedev: data-oriented, multi-paradigm, null-safe, safety checks, C-like syntax, C interop, native code/JIT via LLVM, C backend

The next-generation Minecraft: Bedrock Edition server software aims to be reliable, fast and feature-rich 🌟