Convert YAML to JSON

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

Direction

YAML to JSON JSON to YAML

Input YAML

Indentation

2 spaces 4 spaces

Output JSON

Convert YAML to JSON

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

YAML input

- name: Ada
  role: Engineer

becomes this JSON:

JSON output

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

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

Frequently asked questions

Which JSON 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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