Act vs hyperfine

act is an open-source command-line tool that runs GitHub Actions workflows locally using Docker containers. It reads workflow files from .github/workflows/ and executes them with environment variables and filesystem configurations matching GitHub's hosted runners. The tool enables fast local feedback on workflow changes without requiring commits and pushes to a remote repository.

hyperfine is a developer-utilities tool that command-line benchmarking tool that runs commands multiple times and provides statistical analysis of execution time. It is open source software.