YAML Viewer

View and inspect YAML with syntax highlighting. Toggle between YAML and JSON views.

YAML Input

View Output

What Is a YAML Viewer?

A YAML Viewer lets you inspect and read YAML documents with syntax highlighting. Paste any YAML config — Kubernetes manifests, Docker Compose files, GitHub Actions workflows — and see the structure clearly highlighted. You can also toggle to JSON View to see the parsed data as pretty-printed JSON.

This tool runs entirely in your browser. No data is sent to any server, making it safe to use with secrets, production configs, or any sensitive YAML content.

YAML Viewer Examples

Paste YAML and view it with syntax highlighting, or switch to JSON View to inspect the parsed structure:

Example: Person record

YAML Input:

YAML Input

JSON View output:

JSON View

How to Use This Tool

1

Paste or Upload YAML

Paste your YAML into the left editor or click Upload to load a .yaml or .yml file. The Sample button loads example data.

2

Choose View Mode

Use the YAML View button to see the formatted YAML with syntax highlighting. Use JSON View to parse the YAML and display the data as pretty-printed JSON.

3

Copy or Download

Use <strong>Copy</strong> to put the output on your clipboard, or <strong>Download</strong> to save it as a file. To convert YAML more fully, see the YAML to JSON tool.

Frequently Asked Questions

Is my YAML data private?

Yes. All processing happens in your browser using JavaScript. No data is sent to any server. You can verify this in your browser's Network tab.

What is the difference between YAML View and JSON View?

YAML View normalizes and displays your YAML with syntax highlighting. JSON View parses the YAML and renders the structured data as pretty-printed JSON, which is useful for inspecting values.

Can I use this to convert YAML to JSON?

The JSON View shows a JSON representation. For a dedicated converter, use the YAML to JSON tool.

What YAML features are supported?

Basic key-value pairs, nested objects, lists, and scalar types (strings, numbers, booleans, null) are supported. Complex YAML anchors and aliases may not be fully parsed in JSON View.

Related Tools

YAML Formatter YAML Validator YAML Parser YAML to JSON JSON Formatter

For more on YAML, see the YAML 1.2 specification and yaml.org.