Private YAML conversion in your browser

YAML to JSON Converter

Convert YAML files into JSON format instantly. No uploads, everything runs locally in your browser.

YAML TO JSONPaste YAML or upload a .yaml / .yml file

No upload required

YAML Input

JSON Output

Your JSON output will appear here.

Output Pretty JSON Minified JSON

Files stay in your browser No sign-up Free to use

How to Convert YAML to JSON

Paste YAML text or upload a YAML file, then click Convert YAML to JSON. The converter parses nested objects, arrays, strings, numbers, and boolean values locally in your browser. Copy the JSON output or download it as a .json or .txt file.

Need to compare the result? Try JSON Compare

Need readable output? Try JSON Formatter

Need XML conversion? Try JSON to XML

What is YAML?

YAML is a readable text format commonly used for configuration files. Its indentation-based syntax makes nested settings easy to scan, and comments can explain why a value exists. YAML is often used for app settings, project configuration, and automation files.

What is JSON?

JSON is a lightweight format for structured data such as objects, lists, text, numbers, true or false values, and empty values. It is widely used by websites, APIs, browser apps, and online tools. Converting YAML to JSON makes the same data easier to copy, share, and reuse.

Convert YAML in three steps

Paste or upload YAML

Paste YAML directly or upload a .yaml or .yml file. Click Example to load a server configuration.

Click Convert

The tool checks your YAML and keeps numbers, true or false values, lists, and nested settings in the correct format.

Copy or download JSON

Copy the JSON output, format it for reading, or download output.json for your project, settings file, or API request.

YAML to JSON Example

A YAML server configuration becomes structured JSON while keeping the port as a number and the host as a string.

YAML INPUT

server:
  port: 8080
  host: localhost

JSON OUTPUT

{
  "server": {
    "port": 8080,
    "host": "localhost"
  }
}

YAML vs JSON

YAML	JSON
Human readable	Easy for software to read
Supports comments	No comments
Used in configuration	Used in APIs

Why use this YAML converter?

Free to use
Fast browser-based conversion
Checks YAML syntax
Keeps values in the correct format
Copy and download output
Your data stays on this device

Frequently asked questions

How do I convert YAML to JSON?

Paste YAML into the input, then click Convert YAML to JSON. The formatted JSON appears in the output panel. Need cleaner spacing afterward? Open JSON Formatter. Want to compare two results? Try JSON Compare.

Can I convert a YAML file to JSON?

Yes. Upload a .yaml or .yml file, or paste its contents directly into the input editor.

Is YAML better than JSON?

YAML is often easier for people to read and write, especially in configuration files. JSON is widely used for APIs and machine-to-machine data. For XML instead, use JSON to XML after conversion.

Does this YAML converter upload my files?

No. The conversion runs locally in your browser, so your YAML and JSON data are not sent to a server.

Can JSON replace YAML?

JSON can represent the same basic structures, but YAML supports comments and a more concise configuration style.

Does this support .yml files?

Yes. The file picker accepts both .yaml and .yml extensions.