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JSON to YAML

Turn JSON into clean, portable YAML using a documented safe data subset.

JSON → YAML116 characters
Paste configuration text. The live preview stays inert and is limited for responsiveness.
YAML previewReady
project: toolbox
enabled: true
ports:
  - 3000
  - 3001
service:
  name: api
  retries: 2
Processed on your device

How it works & useful details

Output format

Input uses the shared bounded JSON parser. The export emits a safe YAML data subset with two-space indentation, quoted strings where needed, and explicit empty maps/lists. It does not emit anchors, tags, flow collections, block scalars, or custom YAML types.

Object member order and array order are retained. JSON duplicate names follow standard JSON parsing and keep the last value.

Private, bounded processing

This workspace parses text only in your browser. It never opens links, requests external entities, runs pasted configuration, or saves your document. Input is limited to 500,000 characters; conversion output is limited to 1,000,000 characters.