YAML to JSON Converter

Quick answer: Convert YAML config files to JSON with correct type mapping — keys and values stay identical. Open YAML 转 JSON — everything runs locally in your browser, and files never leave your device.

Steps

1. Paste YAML or upload the file to the YAML to JSON tool.
2. Convert and read the formatted JSON output.
3. Check types: numbers, booleans, and null map per YAML rules.
4. Copy or download the JSON.

Important notes

• YAML is indentation-sensitive — mixed tabs and spaces are the number-one error source.
• YAML comments (#) have no JSON equivalent and are dropped; record important notes elsewhere.
• Unquoted values get type-inferred: version: 1.10 becomes the number 1.1 — quote values that must stay strings.
• Anchors (& and *) expand to their actual values in the output.

Common questions

Can I convert JSON back to YAML? JSON is a valid YAML subset, but YAML-only features like comments and multi-line strings cannot be reconstructed from JSON.

What do I check first when conversion fails? Indentation — 90% of failures are alignment or tab/space mixing.