Is this YAML viewer free?

Yes. It runs in your browser for free and needs no registration or installation.

Are my YAML files uploaded?

No. Files opened from your device stay on your device. Only public sample files come from the server.

Does it handle both .yaml and .yml?

Yes. The viewer reads both .yaml and .yml extensions equally.

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YAML Viewer

Free online YAML viewer. Open .yaml and .yml files directly in your browser without uploading them.

.yaml.yml

Simple App Config

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About this file format

.yaml / .yml (YAML Ain't Markup Language) is a human-friendly data serialization format commonly used for configuration. It relies on indentation for structure and supports scalars, lists, and nested mappings. YAML is the standard for Docker Compose, Kubernetes manifests, Ansible playbooks, and many CI/CD pipelines.

YAML Viewer

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