act
Some data may be outdated — see provenance labels.
Run your GitHub Actions locally 🚀 observed · 2026-09-23
Health v2 · maintenance only
87/100
- Activity 88
- Release rhythm 79
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 30.0
- age_days: 2848
- days_rel: 142
- days_push: 72
- n_releases_24m: 21
Adoption not part of the score
72082 stars · 2042 forks observed · 2026-09-23
What it is AI-extracted, prompt v1, taxonomy v1, 2026-09-21, confidence 0.99
act is a command‑line tool that lets you execute GitHub Actions workflows on your local machine. It reads the workflow files, pulls or builds the required Docker images, and runs each step in containers that mimic the GitHub hosted environment.
Use cases
- Test and debug GitHub Actions locally before pushing changes
- Speed up CI feedback loops by running workflows on a developer workstation
- Replace repetitive Makefile tasks with GitHub Actions as a local task runner
- Validate environment variables and filesystem layout of actions without remote runners
- Run CI pipelines in isolated Docker containers for consistent results
When to choose
- You need fast, iterative testing of GitHub Actions without committing to the repository
- Your workflows rely on Docker images and you want to ensure they build and run correctly locally
- You prefer a single tool that integrates with existing Docker installations across Linux, macOS, and Windows
When to avoid
- Your CI pipelines depend on GitHub‑specific services that cannot be emulated locally (e.g., self‑hosted runners with special hardware)
- You require a full cloud‑based CI environment with scaling and parallelism beyond a single workstation
- You are not using Docker as the execution environment for your actions
Facets
cli-tool · maturity active
ci-cd cli container-runtime windows cli github-actions go local-testing workflow-runner docker-integration devops automation linux macos docker
1 source
- readme: https://github.com/nektos/act · fetched 2026-09-23 · 26f9983573b8
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| nektos/act | main | 87 |
| nektos/gh-act | plugin | 82 |
| nektos/act-environments | infra | 32 |
| nektos/act-docs | docs | 36 |
For agents
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem