Convert YAML to JSON
Convert YAML configuration into JSON.
YAML to JSON Converter
Developer tool running locally in browser
What does YAML to JSON Converter do?
Parse YAML and output JSON, with anchors and aliases resolved, comments stripped and multi-line scalars handled correctly. Parse errors report the exact line so indentation mistakes are easy to find.
How to Use YAML to JSON Converter
- 1Paste your YAMLA single document or several separated by ---.
- 2Read the JSONIt appears as soon as the YAML parses.
- 3Copy or downloadChoose formatted or minified output.
Key Features
- Anchors and aliases resolved into concrete values
- Multi-document YAML converted into a JSON array
- Errors reported with the exact line and column
- Formatted or minified JSON output
- Doubles as a YAML syntax validator
Frequently Asked Questions
Why does my YAML fail to parse?
Almost always indentation. YAML forbids tabs for indentation, requires consistent spacing at each level, and needs a space after every colon. The error line tells you where the parser gave up.
What happens to comments?
They are discarded. JSON has no comment syntax, so there is nowhere for them to go. Keep the YAML as your source of truth if the comments matter.
How are anchors and aliases handled?
They are expanded. An anchor defined with &name and referenced with *name is replaced by the full value everywhere it appears, since JSON has no equivalent mechanism.
Can it handle multi-document YAML?
Yes. Documents separated by --- are converted into a JSON array with one element per document, which is how Kubernetes manifests are usually bundled.
Input is processed in your browser and never transmitted. That said, treat any web page as untrusted for live production secrets — rotate anything you paste anywhere.
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