# nektos/act

Run your GitHub Actions locally 🚀

Repository: https://github.com/nektos/act
Canonical: https://ross.abutalabs.com/products/act
Homepage: https://nektosact.com
Language: Go
License: MIT
License Family: permissive
Topics: github-actions, golang, ci, devops
Last push: 2026-08-09T22:50:11+00:00

## Health v2 (maintenance only)
Score: 93/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 96, release rhythm 86, longevity 100
- inputs: {"age_days": 2800, "days_push": 24, "days_rel": 93, "gap_med": 30.0, "n_releases_24m": 23}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 71649, forks 2015 (observed 2026-08-28T04:12:21.049387+00:00)

## What it is
act is a Go CLI tool that runs GitHub Actions workflows locally by reading .github/workflows files and executing jobs in Docker containers. It emulates the GitHub Actions environment, enabling fast feedback without pushing commits, and can double as a local task runner.

## Use cases
- test github actions workflows locally before pushing
- run ci pipeline on my laptop without committing
- debug a failing github workflow quickly
- use github actions as a local makefile replacement
- run workflow jobs in docker containers locally
- iterate on .github/workflows changes with fast feedback

## When to choose
- you want fast feedback on workflow changes without push/commit cycles
- you need a local runner that mimics GitHub-hosted runner environments
- you want to reuse GitHub Actions syntax as a local task runner
- you have Docker available and want to test CI logic offline

## When to avoid
- you need exact parity with GitHub-hosted runners or GitHub-specific services
- you rely on podman or non-Docker container backends (unsupported)
- your workflows depend on secrets, hosted services, or runners unavailable locally
- you need full CI/CD pipeline orchestration rather than local testing

## Facets
- artifact type: cli-tool
- maturity: active
- function: ci-cd, developer-tools, container-runtime, testing
- domain: developer-tools
- platform: windows, cli, go
- tags: github-actions, local-ci, workflow-runner, docker, task-runner, devops, automation, containers, linux, macos

## Member repositories
- nektos/act (main) score 93

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:12:21.049387+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T16:16:22.495135+00:00, confidence not recorded.
  - readme: https://github.com/nektos/act (fetched 2026-08-28T04:12:21.049387+00:00, sha 26f9983573b8)
  - homepage: https://nektosact.com (fetched 2026-08-28T17:50:23.307885+00:00, sha 455128529f5b)
  - site_page: https://nektosact.com/installation/gh.html (fetched 2026-08-28T17:50:23.316477+00:00, sha cf3d8f89626f)
  - site_page: https://nektosact.com/installation/index.html (fetched 2026-08-28T17:50:23.309833+00:00, sha 7297da27a877)
  - site_page: https://nektosact.com/installation/arch.html (fetched 2026-08-28T17:50:23.311521+00:00, sha 6316ea5658ce)
  - site_page: https://nektosact.com/installation/chocolatey.html (fetched 2026-08-28T17:50:23.312982+00:00, sha f35199ccdc5c)
  - site_page: https://nektosact.com/installation/copr.html (fetched 2026-08-28T17:50:23.314553+00:00, sha f2ddd5be7051)
  - site_page: https://nektosact.com/installation/homebrew.html (fetched 2026-08-28T17:50:23.317982+00:00, sha ee4db5d0313b)
  - site_page: https://nektosact.com/installation/macports.html (fetched 2026-08-28T17:50:23.319533+00:00, sha cc95c060f6ad)
  - site_page: https://nektosact.com/installation/nix.html (fetched 2026-08-28T17:50:23.320984+00:00, sha 00522c69067d)
- Data as of 2026-08-30T08:39:29.467469+00:00.