How to use the JSON to YAML
- Paste your JSON into the input box, or open a file.
- The output updates automatically as you type.
- Copy the YAML or download it as a file.
About JSON
JSON (JavaScript Object Notation) is the default data format of web APIs, package manifests and most configuration tooling. It supports objects, arrays, strings, numbers, booleans and null.
About YAML
YAML is an indentation-based format used for Kubernetes manifests, Docker Compose, GitHub Actions, OpenAPI specs and countless config files. It is a superset of JSON that favours readability.
Private by design
Developer data is often sensitive: API responses, tokens, customer records, internal configs. This JSON to YAML processes everything locally in your browser tab. There is no server round-trip, no logging and no storage of your input. Prefer a native app? Read about JSON to YAML in DevT Pro.
Frequently asked questions
Is this JSON to YAML free?
Yes. This JSON to YAML is completely free to use with no sign-up, no limits and no ads inside the tool.
Is my data uploaded to a server?
No. The JSON to YAML runs entirely in your browser using JavaScript. Nothing you paste is sent to DevT Pro or any other server.
Does the JSON to YAML conversion lose data?
The structure and values of your JSON are preserved. Formatting details such as comments are not carried over.
Can I use the JSON to YAML offline?
Yes. JSON to YAML is also built into DevT Pro, a native app for Mac, Windows, iPad and Linux with 120+ developer tools that work fully offline. It is a $5.99 one-time purchase with no subscription.
