Developer tools
YAML formatter
If you paste JSON, you get YAML. If you paste simple YAML, it is normalized via JSON.
Processed in your browser — nothing is uploaded
Uses the same JSON↔YAML path as the converter. Full YAML 1.2 is not the goal.
Last reviewed 2026-09-10.
FAQ
Questions, answered
Multiline strings?
Simple scalars work. Complex chomping indicators may not round-trip.
Comments?
They can be dropped during normalization.
Does my text leave the browser?
No. The YAML formatter runs in JavaScript on this page. Your paste is not uploaded.
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