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YAML → JSON

FreePrivatejs-yaml

Convert YAML into clean structured JSON instantly. Useful for APIs, configs, automation tools, infrastructure workflows, and developer projects. Runs privately in your browser.

  • YAML to JSON in one click
  • Structured machine-readable output
  • Great for APIs & tooling
  • No upload required
Need the other direction?JSON → YAML
YAML input

Paste valid YAML input.

JSON output
Ctrl+Enter Convert

YAML to JSON Converter Online

Convert YAML into structured JSON instantly. Ideal for APIs, configuration migration, automation workflows, infrastructure tools, and developers who need machine-readable output.

Need the reverse? JSON to YAML turns API responses or config objects into readable YAML for manifests and configs. Both directions run in your browser with no upload.

Where Is This Useful?

APIs
Convert configs or payloads into JSON for REST clients and services.
DevOps
Use YAML sources in JSON-based tools and pipelines.
Automation
Transform workflow files into structured data for scripts and integrations.
Development
Move easily between readable YAML and JSON objects in your stack.

How to Use

  1. Paste YAML data.
  2. Click Convert.
  3. Review JSON output.
  4. Copy or download the result.

Example

YAML

name: app
port: 3000

JSON

{
  "name": "app",
  "port": 3000
}

Features

  • Instant YAML to JSON conversion
  • Pretty formatted output
  • Browser-only private processing
  • Copy or download result
  • Mobile friendly
  • Developer ready formatting

Frequently Asked Questions

Is this free?

Yes. The YAML to JSON converter is free with no sign-up.

Is my data uploaded?

No. Conversion runs locally in your browser.

Can I download JSON?

Yes. Use Download JSON or the mobile sheet to save as data.json.

Is output valid JSON?

Yes. Successful parses emit formatted JSON you can validate with any JSON linter.

Why convert YAML to JSON?

JSON is the default for many APIs, browsers, and data tools; YAML is often used for human-edited configs—conversion bridges both worlds.

What if YAML indentation is wrong?

Fix spaces vs tabs, list dashes, and nesting—YAML is sensitive to structure. The tool surfaces parser messages to help you correct the input.

Does it work on mobile?

Yes. Editors are comfortable on small screens, and copy/download live in an output sheet.

Can arrays be converted?

Yes. YAML sequences become JSON arrays.

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