JSON ↔ YAML ConverterJSON ↔ YAML, browser-local

AppHelp

Convert between JSON and YAML

Paste JSON or YAML and convert it in either direction with a chosen indent — everything runs locally.

name: AppHelp
tags:
  - json
  - yaml
nested:
  ok: true

Common tasks

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Features

  • Convert JSON to YAML
  • Convert YAML to JSON
  • Selectable 2 or 4 space indent
  • Runs entirely in the browser

Frequently asked questions

Is my data uploaded anywhere?
No. The conversion happens entirely in your browser and your input is never sent to a server.
Which YAML version is supported?
Standard YAML 1.2 style documents are parsed, including nested maps, sequences, and scalars.
Can I control the indentation?
Yes. Choose 2 or 4 spaces and the output is reformatted with that indent.