JSON TO YAML CONVERTER - FREE ONLINE TOOL

Convert JSON to YAML instantly with this free online tool. Format, validate, and transform structured JSON data into clean YAML syntax for APIs, configs, and developer workflows.

Ready to convert JSON

Feature

Sorting

</> JSON Input

</> YAML Output

📈 Conversion Statistics

JSON Lines

YAML Lines

0 B

JSON Size

0 B

YAML Size

Objects

Arrays

How It Works

Four steps from raw JSON to readable, comment-ready YAML.

Paste Your JSON

Drop any JSON into the left input panel — API responses, config objects, database records, or test payloads. Use Load Sample to see a realistic example and verify the expected format before pasting your own.

Tune the Options

Choose a Feature mode (Code, Form, Text, Tree, or View) to control how the JSON input is displayed and edited. Set Sorting to keep the original key order or sort keys A–Z or Z–A before the YAML is generated.

Convert & Beautify

Click Convert to YAML to produce indented YAML in the right panel instantly. If your JSON input is minified or hard to read, hit Beautify JSON first to pretty-print it before converting.

Copy or Download

Copy the YAML output to clipboard using the Copy button on the output panel, or save it as a .yaml file using Download YAML — ready to drop into a config directory or commit to your repo.

See It in Action

Real JSON inputs and their exact YAML output — paste either example into the tool and convert instantly.

JSON Input — Server Config

{
  "server": {
    "host": "api.example.com",
    "port": 443,
    "tls": true
  },
  "logging": {
    "level": "info",
    "format": "json"
  }
}

ℹ Feature: Code | Sorting: Keep original order

YAML Output — Indented & Readable

server:
  host: api.example.com
  port: 443
  tls: true
logging:
  level: info
  format: json

✓ Nested JSON objects become indented YAML mappings — no brackets, no quotes where unnecessary.

JSON Input — User List with Types

{
  "users": [
    { "id": 1, "name": "Alice", "active": true },
    { "id": 2, "name": "Bob",   "active": false }
  ],
  "total": 2,
  "page": null
}

ℹ Sorting: A to Z — keys will be alphabetically ordered in the YAML output.

YAML Output — Arrays & Null Preserved

page: null
total: 2
users:
  - active: true
    id: 1
    name: Alice
  - active: false
    id: 2
    name: Bob

✓ JSON arrays become YAML sequences, null stays null, booleans stay unquoted.

JSON → YAML Syntax Cheat Sheet

How each JSON type is written in YAML — a quick reference you can scan before or after converting.

Type	JSON	YAML
String	`"name": "Alice"`	`name: Alice`
Number	`"port": 443`	`port: 443`
Boolean	`"active": true`	`active: true`
Null	`"value": null`	`value: null`
Object	`{"db": {"host": "localhost"}}`	`db: host: localhost`
Array	`"tags": ["a", "b"]`	`tags: - a - b`
String with special chars	`"msg": "hello: world"`	`msg: 'hello: world'`

JSON to YAML Converter - Professional Online Tool

Transform JSON to YAML format with our advanced JSON to YAML converter. Features intelligent formatting, custom indentation, and comprehensive validation.

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Smart Formatting

Intelligent indentation and line breaks for maximum readability

Custom Styling

Configurable indentation width and formatting preferences

Compact Output

Generate clean, minimal YAML without unnecessary verbosity

✨ JSON to YAML Features

›Nested Structure Handling: Perfect conversion of complex nested JSON objects

›Array Formatting: Clean list formatting with proper YAML syntax

›String Escaping: Automatic handling of special characters and quotes

›Type Preservation: Maintain data types during conversion process

›Validation: Real-time JSON validation with detailed error messages

›Performance: Fast conversion even for large JSON documents

Who Uses This Tool?

Anyone who needs to take structured JSON and turn it into something a human can actually read and maintain.

DevOps Engineers

Terraform, Ansible, and GitHub Actions all work in YAML. When infrastructure state or API output arrives as JSON, this tool converts it into the YAML format that CI/CD pipelines and IaC tools actually consume.

Backend Developers

Application configs are easier to maintain and comment in YAML than in JSON. Developers who store runtime config as JSON in a database or API response use this tool to produce the YAML version that goes into the repo.

API Designers

OpenAPI specs are perfectly valid in YAML, which is far more readable than the JSON equivalent. Designers who prototype an API schema in JSON first use this converter to produce the YAML version before committing it to the spec repository.

Technical Writers

Documentation that includes configuration examples is dramatically easier to read in YAML. Writers who receive JSON config samples from engineering use this tool to convert them into YAML before embedding them in docs or tutorials.

Why Use PrimeNotepad JSON to YAML?

Built for developers who need more than a basic format swap.

Converts Without Leaving the Tab

The entire conversion happens inside your browser the moment you click Convert — there is no file upload, no server request, and no spinner to wait for. Paste a five-line config or a five-hundred-line API response and the YAML appears at the same speed.

Key Sorting Built Right In

Most JSON-to-YAML tools dump keys in whatever order they happen to appear. This tool lets you sort keys A–Z or Z–A before converting — so your YAML output is consistently ordered, easier to diff in version control, and simpler to scan at a glance.

Five Input Modes, One Tool

The Feature dropdown switches the JSON input between Code, Form, Text, Tree, and View modes. Code mode gives you a raw editor; Tree and View modes let you explore deeply nested JSON visually before converting — useful when you are unsure of the structure you are working with.

Private by Design

JSON data regularly contains internal API structures, authentication tokens, and service configurations that should never reach an outside server. Because conversion runs locally in your browser, nothing you paste is ever transmitted, logged, or retained anywhere.

Beautify JSON Before You Convert

Minified or one-line JSON is impossible to review before conversion. The Beautify JSON button pretty-prints the input with proper indentation so you can verify the structure is correct first — then convert to YAML with confidence rather than guessing what the output will look like.

Download a Proper .yaml File

Copying large YAML from a browser panel and pasting into an editor can corrupt indentation. The Download YAML button writes the output directly to a .yaml file — preserving every space and newline exactly, so the file is valid the moment it lands in your downloads folder.

JSON to YAML Converter FAQ

Quick answers about converting JSON to YAML online, formatting output, validation, and common developer use cases.

What is a JSON to YAML converter?

A JSON to YAML converter transforms JSON data into YAML format while preserving objects, arrays, strings, numbers, booleans, and nested structures.

Why should I convert JSON to YAML?

YAML is often easier to read and edit for configuration files, DevOps workflows, CI/CD pipelines, Kubernetes manifests, and application settings.

Does this tool validate JSON before conversion?

Yes. The converter checks whether your input is valid JSON. If the JSON has syntax errors, the tool shows an error instead of generating incorrect YAML.

Can I sort JSON keys before converting to YAML?

Yes. Use the sorting option to keep the original key order, sort keys from A to Z, or sort keys from Z to A before generating YAML output.

Is my JSON data uploaded to a server?

The conversion runs in your browser using JavaScript, so your pasted JSON can be converted quickly without requiring a server-side upload.

Can I download the converted YAML file?

Yes. After conversion, click the download button to save the YAML output as a .yaml file for your project or configuration workflow.

JSON in Your Hands, YAML Ready for the Pipeline

JSON is the universal language of APIs and data exchange — but YAML is what config files, CI/CD workflows, and Kubernetes manifests actually speak. This tool removes the translation overhead so you can stay focused on building, not on reformatting data between the two formats.

Sort your keys, choose your feature mode, and download a valid .yaml file in seconds. No login, no upload, nothing stored — just clean YAML the moment you need it.

JSON to YAML Converter Online - Fast & Reliable Conversion

Convert JSON to YAML Online with Ease

Free JSON to YAML Converter - No Installation Required

JSON to YAML Converter - Free Online Tool | Convert JSON to YAML Format