YAML ↔ JSON Converter
Convert between YAML and JSON with readable formatted output.
Input is processed in your browser and is not uploaded.
Mode
Output
Results appear here.Add input to see a result.
Use this converter for configuration files, CI snippets, API examples, and structured data copied between tools. It parses input locally and formats the result for reading. Lightweight, mobile-friendly, and built for quick repeat use.
Move structured data between YAML and JSON without losing shape
YAML is common in configuration files, while JSON is common in APIs and fixtures. Converting between them is useful when data needs to move from CI config, documentation, or infrastructure snippets into code and back. This converter keeps parsing local and makes the output readable for review.
Config migration
Convert small YAML examples into JSON for API tests, schema checks, or generated documentation.
Fixture preparation
Turn JSON responses into YAML when a test suite, static site, or workflow file is easier to maintain in YAML.
Structure inspection
Use conversion as a quick way to catch indentation mistakes, invalid nesting, and accidental strings.
Convert and verify
- 1Paste a focused snippet rather than a whole repository-sized config file.
- 2Convert once, then check arrays, booleans, nulls, and numbers before copying.
- 3Avoid custom YAML tags when the destination is plain JSON.
- 4Validate the converted output with the target system before committing it.
YAML to JSON shape
name: Textbun
tools:
- JSON Formatter
- YAML Converter
private: true{
"name": "Textbun",
"tools": [
"JSON Formatter",
"YAML Converter"
],
"private": true
}The list and boolean value keep their structure after conversion.
YAML edge cases
- Indentation changes meaning in YAML, so copied spaces matter.
- Comments in YAML are useful to humans but do not exist in JSON output.
- Custom tags, anchors, and complex YAML features may not map cleanly to JSON.
FAQ
Can it convert YAML to JSON?+
Yes. Choose YAML to JSON mode and paste YAML input.
Can it convert JSON to YAML?+
Yes. Switch modes to parse JSON and output YAML.
Does it support every YAML feature?+
It supports common YAML through the YAML parser, but complex custom tags may not convert as expected.