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JSON-YAML Converter
Conversion
Convert between JSON and YAML with live side-by-side panes. Paste either format and the other updates instantly in your browser.
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JSON-YAML Converter
JSON
YAML
Convert between JSON and YAML with live side-by-side panes. Paste JSON on the left and YAML updates on the right, or paste YAML on the right and JSON updates on the left.
See moreSee less about the JSON-YAML Converter
Pretty-printed output for Kubernetes manifests, Compose files, and CI configs — nothing leaves your browser.
Key features
- Clean interface
- Fast processing
- No signup required
- Works offline
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Quick answers for JSON-YAML Converter
Does it convert both ways?
Yes. Paste or type JSON on the left and YAML updates on the right; paste or type YAML on the right and JSON updates on the left. Incomplete text shows an error without wiping the other pane.
How is the YAML output formatted?
YAML output uses 2-space indentation, no document markers, and 80-character line width - the defaults for js-yaml and the format most teams use for config files.
Does the converter handle nested arrays and objects?
Yes. Arbitrarily nested JSON structures convert cleanly into YAML's indentation-based format.
What happens to JSON null and booleans in YAML?
They convert to YAML's native null, true, and false literals. Strings that happen to look like those keywords are quoted automatically to avoid ambiguity.
Is my data uploaded anywhere?
No. Conversion happens entirely in your browser, so configuration that contains internal hostnames or secrets stays on your device.