Floci is a free, open-source local AWS emulator that runs AWS-compatible services on localhost without requiring an AWS account, auth tokens, or paid features.

It supports 51 AWS services, including core app, data, eventing, identity, and container-backed services, using real Docker-backed execution where needed. Floci is optimized for fast startup, low memory usage, CI workflows, and offers configurable storage persistence, positioning itself as a lightweight alternative to LocalStack’s discontinued free edition.