tojson.orgYour data, beautifully structured.

YAML to JSON

Convert YAML configuration to JSON, checking duplicate keys, aliases and numeric precision.

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Usage guide

Convert YAML configuration to JSON, checking duplicate keys, aliases and numeric precision.

  1. 01

    Paste data or read from a file.

  2. 02

    Review the options; results update automatically. Run manually for larger inputs, and check warnings before applying changes.

  3. 03

    Copy or download the result. Your original document stays unchanged until you apply it.

Reference specifications:YAML · 1.2.2

Example input

project: ToJSON
private: true
features:
  - Format
  - Convert

Frequently asked questions

Can I recover my documents after closing the page?

Documents are saved automatically in this browser and restored when you return. Closing a document with X deletes it. Browser cleanup can also remove saved work; download important results or export your workspace.

Which YAML features are unsupported?

Cyclic or excessive aliases, non-string mapping keys, custom tags and non-finite numbers are rejected.