Skip to main content
YAML → JSON
YAML → JSONReady
Indent
YAML Input
0 lines · 0 B
Raw input remains untouched until you click Format
JSON OutputEditable
0 lines · 0 B
Ready to copy (⌘⇧C) or download (⌘S)

YAML to JSON Converter

Convert YAML configuration files to JSON data structures online with strict type preservation. Fast, client-side YAML to JSON transformation.

YAML 1.2 parser
Indent options
Preserves booleans/nulls
Download .json
Step-by-Step Guide

How to Use YAML → JSON Online

Follow these quick steps to process your data online directly in your browser with zero latency and 100% privacy.

1
Step 1Parses YAML 1.2 syntax into internal data trees.
2
Step 2Maps YAML sequences to JSON arrays and mappings to JSON objects.
3
Step 3Formats the generated JSON with clean indentation.
Demonstration

Example Input & Output

Converts YAML mappings to JSON objects, sequences to arrays, and literals to standard JSON types.

YAML Input
name: Alex
age: 25
skills:
  - TypeScript
  - Astro
settings:
  active: true
  theme: dark
JSON Output
{
  "name": "Alex",
  "age": 25,
  "skills": [
    "TypeScript",
    "Astro"
  ],
  "settings": {
    "active": true,
    "theme": "dark"
  }
}
Applications

Common Use Cases

CI/CD Pipeline Data Conversion

Convert GitHub Actions YAML configs into JSON payloads for API consumption.

Kubernetes Object Processing

Convert k8s manifests to JSON for programmatically querying with jq.

Guidelines

Specifications & Gotchas

Unquoted Booleans

Values like yes, no, on, off in YAML 1.1 may parse as booleans unless quoted.

Knowledge

Frequently Asked Questions

How do I convert YAML to JSON?

Paste your YAML document into the left editor; the formatted JSON will appear in the right editor instantly.

Does the converter support nested YAML structures?

Yes, deeply nested mappings and lists are fully supported.

How are YAML arrays converted to JSON?

YAML bullet lists (- item) are converted directly to standard JSON array brackets (["item"]).

Is my YAML uploaded to a server?

No, all conversion logic runs 100% locally in your web browser.

Workflow

Related Tools

All Tools →
CONVERTER

JSON → YAML

Convert JSON to YAML online with customizable indentation and clean syntax preservation. Generate YAML configurations from JSON payloads in your browser.

YAML 1.2 compliantIndentation optionsCopy & download
Open tool
CONVERTER

YAML → XML

Convert YAML documents to well-formed XML markup online with customizable root tags and element structures. 100% private in-browser conversion.

Root tag wrapSequence translationEntity escaping
Open tool
CONVERTER

YAML → .env

Convert YAML configuration files to flat .env key-value pairs online. Export Docker Compose and Kubernetes variables directly in your browser.

Hierarchy flatteningSNAKE_CASE conversionValue escaping
Open tool
FORMATTER

YAML Formatter

Format, beautify, and indent YAML documents online. Enforce consistent 2-space indentation and clean syntax structure with 100% private browser processing.

YAML 1.2 standardIndent normalizationComment preservation
Open tool
FORMATTER

JSON Formatter

Format and beautify JSON online with customizable indentation, key sorting, and instant syntax validation. 100% private browser-based formatting.

Indent control (2/4/Tab)Sort keysMinify toggle
Open tool