UtilityBaseDeveloper Tools
YAML to JSON Converter
Convert YAML to JSON and JSON to YAML in your browser, with inline parse errors.
Updated July 10, 2026
How to use the yaml to json converter
- 1Choose YAML → JSON or JSON → YAML.
- 2Paste your text into the input box.
- 3Read the converted output, or fix any inline error.
- 4Copy the result.
Common uses
- Converting a config file between formats
- Turning an API's JSON into readable YAML
- Checking that YAML parses correctly
- Preparing data for a CI or Kubernetes file
Frequently asked questions
What's the difference between YAML and JSON?
They represent the same structured data in different styles. YAML uses indentation and is easy for humans to read and write, common in config files. JSON uses brackets and quotes and is the standard for APIs and data exchange. Every YAML document maps to an equivalent JSON one.
Does it handle multi-document YAML?
Yes. YAML files can hold several documents separated by ---. When you convert such a file to JSON, the converter returns a JSON array with one element per document.
Is my data kept private?
Yes. The conversion runs entirely in your browser, so your YAML or JSON is never sent to a server. That makes it safe for config files that contain internal names or settings.
About this tool
The YAML to JSON converter changes data between the two formats both ways: paste YAML to get clean, formatted JSON, or paste JSON to get readable YAML. It reports parse errors inline so you can fix a bad indent or missing quote quickly, and multi-document YAML separated by --- is converted to a JSON array. YAML and JSON represent the same structured data, so this is handy for config files, API payloads, and CI pipelines. Everything is processed locally in your browser — nothing you paste is uploaded.
Like most tools on UtilityBase, the yaml to json converter runs entirely in your browser — nothing you enter is uploaded or stored on a server. It's free to use with no account required. Browse more developer tools here.
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