rhysd

    rhysd/actionlint

    :octocat: Static checker for GitHub Actions workflow files

    devops
    developer-tools
    actions
    ci
    github-actions
    lint
    linter
    Go
    MIT
    4.4K stars
    295 forks
    4.4K GitHub watchers
    Updated Nov 6, 2026
    View on GitHub

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    Where it stands

    Rank, growth pace and release cadence relative to everything GStars tracks.

    No releases in the last 90 days; the most recent was 220 days ago, with 86 contributors on GitHub.

    Use Cases & Benefits

    • Provides a static checker for GitHub Actions workflow files to detect syntax and semantic errors.
    • Ensures high accuracy in error detection with minimal false positives by validating workflow syntax, expressions, and action usage.
    • Use for validating GitHub Actions workflows to catch syntax mistakes and misconfigurations before deployment.
    • Use for securing workflows by detecting script injection risks and hard-coded credentials in action scripts.
    • Use for integrating with CI pipelines or editors to automate workflow linting and improve continuous integration reliability.

    Should you depend on it?

    License terms, project hygiene and risks, from GitHub metadata and GStars' snapshots.

    License

    MIT

    Permissive: commercial use, modification and redistribution are allowed with attribution.

    Community files

    • README: present
    • Contributing guide: present

    Watch-outs

    No watch-outs from GStars' checks.

    General guidance from repository metadata, not legal advice. How we score

    From the README

    actionlint is a static checker for GitHub Actions workflow files. Try it online!

    See the full list of checks done by actionlint.

    Install actionlint command by downloading the released binary or by Homebrew or by go install. See the installation document for more details like how to manage the command with several package managers or run via Docker container.

    Basically all you need to do is run the actionlint command in your repository. actionlint automatically detects workflows and checks errors. actionlint focuses on finding out mistakes. It tries to catch errors as much as possible and make false positives as minimal as possible.

    Another option to try actionlint is the online playground. Your browser can run actionlint through WebAssembly.

    See the usage document for more details.

    Excerpt from the rhysd/actionlint README on GitHub (MIT license). © its authors.Read the full README on GitHub

    Daily snapshots

    Stars gained per day, and how forks and open issues moved, from GStars' daily snapshots

    Forks

    295+36

    Open issues

    217+32

    Compared with peers in DevOps

    Fastest-growing repositories GStars tracks in this cohort for the week of Nov 1, by 7-day star growth

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    Category median13.5K+1.4K60—

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