What is JSON ↔ YAML?
JSON ↔ YAML is a free online converter that turns JSON into YAML and YAML into JSON using safe parsers. Handy for Kubernetes, Docker Compose, GitHub Actions and app configs.
Convert JSON to YAML and YAML to JSON online using safe loaders. Free config format converter on Fah Swe Tools.
Key features
- JSON → YAML and YAML → JSON
- Safe loading (no code execution)
- Readable indentation
- Private — nothing stored
Common uses
- Convert Kubernetes and Docker configs
- Edit GitHub Actions workflows
- Switch app settings between formats
Also known as: YAML to JSON, JSON to YAML, YAML Converter.
How it works
- Paste JSON or YAML.
- Choose direction.
- Copy the result.
FAQ
Safe?
Yes — YAML 1.2 core schema only (no custom tags, no aliases), converted in your browser; nothing is sent.
What is the difference between JSON and YAML?
Both store structured data; YAML uses indentation and is easier to read, JSON is stricter and common in APIs.
Is YAML a superset of JSON?
Mostly yes — valid JSON is generally valid YAML.