JSON ↔ YAML Converter

Convert between JSON and YAML formats instantly. Bidirectional — works both ways.

What is JSON to YAML Conversion?

The JSON to YAML converter moves data between the two most common config formats — instantly and in both directions. Paste JSON to get clean, comment-friendly YAML, or switch direction and paste YAML to get strict JSON. It is built for the workflows where YAML dominates: Kubernetes manifests, Docker Compose files, GitHub Actions, and CI/CD pipelines. Everything converts client-side, so credentials or infrastructure configs embedded in your files never leave your browser.

Why YAML for Kubernetes, Docker, and CI?

Output is properly indented and quoted per YAML rules — no hand-fixing colons or boolean casing — and the bidirectional switch means one tool covers round-trips: JSON → YAML for humans, YAML → JSON for APIs and scripts. Indentation options keep the output matching your project's style. Because conversion is local, it is safe for private infrastructure definitions and pre-release service configs.

How to convert JSON to YAML (and back).

  1. Paste JSON into the input editor
  2. Click "Convert to YAML" to get readable YAML
  3. Switch direction to convert YAML back to JSON
  4. Copy or download the result, or hand it off via "Open in"

Related JSON tools.

Round out a config workflow with these companions:

FAQ.

Is the converter bidirectional?

Yes. Convert JSON to YAML and YAML back to JSON with the same tool; toggle the direction and paste either format.

What is YAML used for?

YAML is the default format for Kubernetes manifests, Docker Compose, GitHub Actions, and many CI/CD and infrastructure-as-code files, because it is more readable than JSON.

Is my config file uploaded?

No. Conversion runs locally in your browser. Files containing credentials, internal hostnames, or proprietary config never leave your device.

Will the YAML be valid and correctly indented?

Yes. Output follows YAML syntax rules with consistent indentation and proper quoting of strings, so it can be pasted directly into a manifest or pipeline file.

What's the difference between JSON and YAML?

JSON is stricter and machine-oriented (mandatory quotes, no comments); YAML is a human-friendly superset — less punctuation, supports comments — and can represent the same data structures.

Looking for a different transformation? Explore thefull JSON toolkit— 11 free, private, in-browser tools that never upload your data.