Linux kernel source tree

For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.

A code-searching tool similar to ack, but faster.

A very compact representation of a placeholder for an image.

High performance UI layout library in C.

Text-mode interface for git

A fast, light-weight proxy for memcached and redis

mimalloc is a compact general purpose allocator with excellent performance.

Screaming-fast Python 3.5+ HTTP toolkit integrated with pipelining HTTP server based on uvloop and picohttpparser.

Quake III Arena GPL Source Release

A maintained ctags implementation

A library that enables dynamically rebinding symbols in Mach-O binaries running on iOS.

A command-line based markdown presentation tool.

JSON output from a shell

A memory profiler for Linux.

A simple logging library implemented in C99

🔍 A simple, fast fuzzy finder for the terminal

Quake 2 GPL Source Release

libfaketime modifies the system time for a single application

Up to 100x faster strings for C, C++, CUDA, Python, Rust, Swift, JS, & Go, leveraging NEON, AVX2, AVX-512, SVE, GPGPU, & SWAR to accelerate search, hashing, sorting, edit distances, sketches, and m…

Fast caching software with a focus on low latency and cpu efficiency.

📚 single header utf8 string functions for C and C++

LZFSE compression library and command line tool

MultiMarkdown version of Notational Velocity with Markdown editing features and preview

PostgreSQL Audit Extension

A high-performance immutable mapping type for Python.

a clean C library for processing UTF-8 Unicode data

A faster and more flexible binary file format replacement for NSCoding, Property Lists and JSON

A VM with adaptive optimization and JIT compilation, built for Rakudo