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Ansible YAML Validator — Playbook Linter Online

Validate Ansible playbooks for hosts, tasks, and module usage before ansible-playbook runs. Catch missing hosts: and empty task lists in your browser.

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Ansible playbook

Ansible playbook checks

Paste a play or playbook list to validate hosts, tasks, and module usage.

About this tool

Playbook checksTask validationSamplesPrivateMulti-play

How to use

  1. Paste your Ansible playbook or play list.
  2. Review syntax errors first, then structural findings.
  3. Fix missing hosts: or tasks without modules.
  4. Re-validate until clean.

Examples

Valid play

- hosts: web
  tasks:
    - name: Ping
      ping:
All checks passed

FAQ

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