YAML to JSON Converter
Parse YAML to JSON with file upload, indent control, download, and validation — instant browser conversion.
How to Use
Step-by-step guide to get the most from this tool
- 1
Paste or upload YAML
Type YAML or upload a .yaml/.yml file.
- 2
Choose indent
Pick 2-space, 4-space, or minified JSON.
- 3
Review output
See formatted JSON with type and size stats.
- 4
Copy or download
Copy JSON or download as converted.json.
Features
What makes this tool stand out
File upload
Load YAML from disk.
Indent options
2, 4 spaces, or minified.
Download
Save JSON file locally.
Validation
Round-trip and error messages.
Copy
One-click JSON copy.
Private
Browser-only parsing.
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Frequently Asked Questions
Quick answers to common questions
What YAML features are supported?+
Nested objects, lists, booleans, null, numbers, and quoted strings.
Can I upload a YAML file?+
Yes. Use Upload file for .yaml, .yml, or .txt files.
Can I choose JSON indent?+
Yes. Select 2 spaces, 4 spaces, or minified output.
What is round-trip validation?+
Valid YAML is re-serialized to confirm the parse succeeded cleanly.
Can I download the JSON?+
Yes. Click Download to save converted.json.
Is this suitable for complex YAML?+
Anchors, aliases, and multi-document files need dedicated tools. This handles common configs.
Is my YAML uploaded?+
No. Parsed entirely in your browser.
How do I convert JSON back to YAML?+
Use the YAML Formatter tool for JSON-to-YAML conversion.