Convert JSON to YAML instantly

Convert JSON to YAML in your browser. No upload needed. Your data never leaves your device. Free and instant.

Drop your JSON file here

or click to browse

Your files stay private
No server upload
Instant conversion

 

Example

Input (JSON)

{
  "name": "my-service",
  "port": 8080,
  "env": {
    "NODE_ENV": "production",
    "LOG_LEVEL": "info"
  }
}

Output (YAML)

name: my-service
port: 8080
env:
  NODE_ENV: production
  LOG_LEVEL: info

About this converter

Got a JSON config that needs to become a Kubernetes manifest, a Docker Compose file, or a GitHub Actions workflow? YAML is easier to read and edit by hand, which is why most DevOps tools prefer it. This converter takes your JSON and produces clean, properly indented YAML. Nested objects, arrays, booleans, nulls, and numbers are all handled correctly. The conversion runs in your browser. Your data is not sent to any server.

JSON vs YAML

JavaScript Object Notation (JSON)

JSON (JavaScript Object Notation) is a lightweight data format that is easy for humans to read and write, and easy for machines to parse and generate.

Common uses: APIs, web applications, and configuration files

ECMA-404 (JSON specification)

YAML Ain't Markup Language (YAML)

YAML is a human-friendly data serialization language commonly used for configuration files in DevOps tools like Docker Compose, Kubernetes, and GitHub Actions.

Common uses: configuration files, CI/CD pipelines, and data serialization

YAML 1.2.2 specification

How to convert JSON to YAML

  1. 1

    Upload

    Upload your JSON file using the drop zone above, or click to browse your device.

  2. 2

    Convert

    Click the "Convert to YAML" button. The conversion runs instantly in your browser.

  3. 3

    Download

    Download your converted YAML file. No data was sent to any server.

Frequently Asked Questions

Last updated: 2026-03-23