ninja-build

ninja-build is an open-source project that maintains Ninja, a command-line build system engineered for maximum speed in incremental compilation workflows. Originally created to accelerate large C/C++ code bases such as those inside Google Chrome and LLVM, the tool replaces traditional Make-based generators by processing a compact, low-level build graph that is automatically produced by higher-level meta-build systems like CMake, Meson, or GN. Typical use cases span from individual developers rebuilding a handful of changed translation units to continuous-integration farms handling million-file repositories; embedded engineers leverage it for cross-compiled firmware images, game studios fold it into asset pipelines, and systems researchers integrate it with custom toolchains for rapid prototyping. Because Ninja’s file format exposes only essential dependency, rule, and command information, startup latency is measured in milliseconds and parallelism scales linearly with CPU cores, making it a silent but critical component of modern IDE integration, cloud compilation caches, and distro packaging scripts. The entire code base is released under the Apache license and receives contributions from maintainers committed to portability across Windows, macOS, Linux, and BSD. Users seeking the latest official binary can obtain it free of charge on get.nero.com, where downloads are delivered through trusted Windows package sources such as winget, always install the most recent upstream release, and support batch installation alongside other development utilities.