Data Converters

YAML to JSON Converter

Convert YAML config files, Kubernetes manifests, Docker Compose files, or GitHub Actions workflows to JSON in one click. Anchors, aliases, and multi-document streams are all supported.

Runs entirely in your browser No account needed Copy or download result
YAML JSON
Paste YAML below, or drop a file

Converted entirely in your browser; your data never leaves your device

Features

  • Supports YAML 1.2 including anchors and aliases
  • Converts multi-document YAML streams to a JSON array
  • Handles all scalar types: strings, numbers, booleans, nulls
  • Shows exact parse error with line number on invalid input
  • Copy or download result as .json

How to use it

  1. Paste your YAML into the left panel.
  2. JSON appears immediately in the right panel.
  3. Fix any parse errors highlighted in the error bar.
  4. Copy or download the converted JSON.

Use cases

  • Debugging Kubernetes YAML by reading it as JSON
  • Converting Ansible playbooks for tooling that requires JSON
  • Transforming OpenAPI YAML specs to JSON
  • Reading GitHub Actions workflow files in JSON editors

Limitations

  • The parser focuses on common YAML used in configs, simple arrays, and nested objects.
  • Very large files depend on browser memory and device performance.
  • Malformed or highly specialized data may need manual cleanup before or after conversion.
See also

Related tools

data Browser

JSON to YAML

Convert JSON to YAML online. Paste any JSON object or array and get clean, human-readable YAML with proper indentation. Processed locally, nothing uploaded.

Use tool
data Browser

XML to JSON

Convert XML to JSON online. Paste any XML document and get a clean JSON object with attributes, namespaces handled. All processed locally, nothing uploaded.

Use tool
Dev Browser

JSON Formatter

Format and beautify JSON online. Paste minified or messy JSON and get clean, 2-space indented output with syntax validation, instant, in-browser, no upload.

Use tool
data Browser

CSV to JSON

Convert CSV to JSON in your browser. Paste data or upload a file, toggle header detection, infer types, and download pretty-printed JSON. No server, no account.

Use tool
data Browser

JSON to CSV

Convert JSON arrays to CSV instantly. Flatten nested objects, pick a delimiter, and download a spreadsheet-ready .csv file. All processed locally in your browser.

Use tool
data Browser

JSON to XML

Convert JSON to well-formed XML in your browser. Paste JSON, set root element name, and download the XML file. No upload, no account.

Use tool
Questions & answers

Frequently asked

Does it support YAML anchors and aliases?

Yes. Anchors (&anchor) and aliases (*anchor) are resolved and the referenced values are inlined in the output JSON.

What happens with YAML dates?

YAML bare dates like 2024-01-15 are converted to ISO 8601 strings in JSON output.