Convert JSON to YAML

Convert JSON to YAML instantly. Paste JSON below and copy the YAML.

Direction

YAML to JSON JSON to YAML

Input YAML

Indentation

2 spaces 4 spaces

Output JSON

Convert JSON to YAML

This converter turns JSON into YAML in your browser using a self-contained parser. For example, this JSON:

JSON input

[{"name":"Ada","role":"Engineer"}]

becomes this YAML:

YAML output

- name: Ada
  role: Engineer

Everything runs locally. No cost, no signup, no tracking.

Frequently asked questions

Which YAML features are supported?

Standard mappings, sequences, and scalars are supported. It is meant for configuration and data interchange, not full document streams with anchors and custom tags.

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Use Clean.tools from your AI agent

This tool is also convert_yaml on the Clean.tools MCP server — the same engine, callable by your AI agent directly. No key, no signup: requests are processed in memory and request contents are never stored.

Claude Code

claude mcp add --scope user --transport http clean-tools https://mcp.clean.tools/mcp

Any MCP client (streamable HTTP, authless)

https://mcp.clean.tools/mcp

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