Properties to YAML & JSON — Free
Use this free online JSON formatter, XML pretty printer, YAML validator, and Spring properties beautifier when debugging REST APIs, webhooks, Kubernetes manifests, or application.yml snippets. Everything runs client-side in JavaScript — paste production payloads safely on your laptop without sending data to a third-party server.
- Pretty-print minified JSON from browser DevTools or Postman responses
- Validate XML payloads before JAXB/Jackson integration tests
- Format YAML for Spring Boot application.yml and docker-compose files
- Sort and indent .properties for readable Spring configuration reviews
- Minify JSON/XML to reduce payload size in API contract examples