SanderMertens/flecs — A fast entity component system (ECS) for C & C++

Description and use

SanderMertens/flecs is a high‑performance Entity Component System (ECS) library written in C with a modern C++ API, designed to simplify data‑driven game and simulation development. It provides a lightweight, cache‑friendly architecture, fast iteration over component data, and flexible query, system, and event mechanisms while remaining easy to integrate into existing codebases. The project is open‑source, actively maintained, and suitable for both small prototypes and large‑scale production projects.

Problem

SanderMertens/flecs helps convert raw data into searchable, analyzable, or automated pipelines.

Outcome

Medium: useful for prototypes or internal workflows, with dependency and maintenance checks before production.

Workflow

• organize analytics pipelines
• process datasets
• improve reporting workflows

Evidence

A fast entity component system (ECS) for C & C++

Source