All tools
All tools › YAML to JSON Converter ● Live Data Tools

How YAML to JSON Converter works

  1. Paste your YAML content (config file, CI snippet, etc.) into the input box.
  2. The tool validates the YAML and reports any syntax errors.
  3. View the converted JSON output with the same data structure.
  4. Copy the JSON output for use in your application or scripts.
  • Convert a Kubernetes manifest or Docker Compose file to JSON for inspection.
  • Check the structure of a CI/CD pipeline config (GitHub Actions, GitLab CI) as JSON.
  • Transform a YAML config file for use with a JSON-based configuration loader.
  • Debug indentation issues in YAML by viewing the resulting JSON structure.
  • Prepare YAML-based API specs (like OpenAPI) for JSON-only tooling.

Conversion happens entirely in your browser. Your YAML content is never uploaded.

  • Designed for single YAML documents, not multi-document files separated by '---'.
  • YAML comments are discarded since JSON has no comment syntax.
  • YAML-specific features like anchors/aliases are resolved into expanded values.

YAML to JSON Converter

YAML to JSON Converter helps inspect configuration files, CI snippets, and structured docs in JSON form. It is useful when moving data between formats.

YAML to JSON Converter Runs locally
YAML → JSON

YAML Input

JSON Output
Similar tools

More Data Tools tools

See all tools →
LiveData Tools

JSON to XML Converter

Convert JSON objects into readable XML markup with proper indentation and formatting. Handle nested structures, arrays, and mixed data types. Useful for API integration, data transformation, and format conversion.

json to xmlxmldata conversion
LiveData Tools

XML to JSON Converter

Convert XML data into formatted JSON. Transform XML documents into JSON structure for easier processing and API integration.

xml to jsondata conversionparser
LiveData Tools

Age Calculator

Calculate exact age in years, months, and days from a date of birth.

age calculatorbirthdaydate of birth
LiveData Tools

BMI Calculator

Calculate BMI in metric or imperial units with category and healthy weight range.

BMIbody mass indexweight
LiveData Tools

CSV Cleaner

Preview, clean, and normalize CSV files locally in your browser.

CSVData CleaningSpreadsheet
LiveData Tools

CSV Column Extractor

Extract a single CSV column by header name or index.

csvcolumn extractorspreadsheet
Guide

How to use

  1. Paste your YAML content (config file, CI snippet, etc.) into the input box.

  2. The tool validates the YAML and reports any syntax errors.

  3. View the converted JSON output with the same data structure.

  4. Copy the JSON output for use in your application or scripts.

Scenarios

Use cases

  • Convert a Kubernetes manifest or Docker Compose file to JSON for inspection.

  • Check the structure of a CI/CD pipeline config (GitHub Actions, GitLab CI) as JSON.

  • Transform a YAML config file for use with a JSON-based configuration loader.

  • Debug indentation issues in YAML by viewing the resulting JSON structure.

  • Prepare YAML-based API specs (like OpenAPI) for JSON-only tooling.

Good to know

Limitations & Privacy

Private by design

Conversion happens entirely in your browser. Your YAML content is never uploaded.

  • Designed for single YAML documents, not multi-document files separated by '---'.

  • YAML comments are discarded since JSON has no comment syntax.

  • YAML-specific features like anchors/aliases are resolved into expanded values.

FAQ

Frequently asked questions

Is YAML to JSON Converter free to use?

Yes. The tool is free and runs directly in your browser with no account required.

Does this tool upload my data?

No. Your YAML is parsed locally in the browser tab and is not sent to a server.

Will it tell me if my YAML is invalid?

Yes — YAML is sensitive to indentation and syntax. If the document can't be parsed, the tool reports an error so you can locate the issue.

How are YAML anchors and aliases handled?

YAML anchors (&) and aliases (*) are resolved during parsing, so the resulting JSON contains the expanded/duplicated values rather than references.

Does it support multi-document YAML files (separated by ---)?

The tool is designed for single YAML documents. Multi-document files separated by '---' may need to be split before conversion.

How are YAML comments handled?

Comments are stripped during conversion since JSON has no comment syntax — only the data values are converted.

Why convert YAML to JSON?

JSON is the standard format for most APIs and JavaScript code. Converting lets you use YAML config files (like CI pipelines or Kubernetes manifests) with JSON-based tooling, or simply inspect the structure more explicitly.