Tool4SaaS

YAML to JSON

Convert YAML configs into validated, pretty-printed JSON with line-specific error messages, anchor handling, and instant copying for APIs and apps offline.

YAML to JSON

Paste YAML (2-space indentation) and convert to JSON. Supports key: value, lists with "-", nested objects/arrays, strings, numbers, booleans and null.

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About the author

Written and maintained by the Tool4SaaS team. Every tool runs locally in your browser and is tested in-house for accuracy. Last updated: .

Frequently asked questions

Key: value, lists with -, nested via 2-space indent, strings, numbers, booleans and null. Odd indent is flagged.

Yes, parsing runs locally in the browser and flags uneven indentation with exact line numbers.

Yes, all processing happens locally in your browser and nothing is uploaded.

How to use YAML to JSON

  1. Paste YAML: Paste YAML content.
  2. Convert: See JSON output automatically.
  3. Copy: Copy JSON.