JSON ↔ YAML Converter
Paste JSON to get YAML, or paste YAML to get JSON
JSON Input
YAML Output
Convert JSON to YAML and YAML to JSON instantly in your browser. This bidirectional JSON↔YAML converter is essential for Kubernetes configuration, GitHub Actions CI/CD pipelines, OpenAPI specifications, and any workflow where human-readable configuration files need to interoperate with JSON-based tooling.
Bidirectional JSON to YAML Converter for DevOps and APIs
YAML is the dominant format for human-edited configuration in modern DevOps tooling. Kubernetes manifests, Helm charts, GitHub Actions workflows, Docker Compose files, Ansible playbooks, and OpenAPI/Swagger specifications all use YAML because it is more readable than JSON for complex nested structures and supports inline comments.
Converting between JSON and YAML is a frequent task for developers who need to adapt data between API payloads (JSON) and configuration files (YAML). This tool handles the full YAML 1.2 spec including multi-line strings, block scalars, boolean shorthand values, and null handling differences between the two formats.
All conversion is performed entirely in your browser. YAML configuration files often contain sensitive values — API keys, database URLs, secrets manager references — and client-side processing ensures these values are never transmitted to any external server.
YAML for Kubernetes, CI/CD, and OpenAPI Workflows
Kubernetes and GitHub Actions are defining formats for cloud-native development, and both are YAML-first. Developers frequently copy JSON from API documentation or tooling output and need it in YAML for manifest files. Similarly, OpenAPI specs exported as JSON from tools like Postman need conversion to YAML for readability in version control. This converter handles all standard YAML features including anchor/alias references in YAML input, producing clean and portable output in either direction.
Writing Kubernetes and Helm Manifests
Convert JSON API schema definitions into YAML Kubernetes manifests, or adapt JSON-formatted kubectl output back into editable YAML config files.
GitHub Actions CI/CD Workflow Configuration
Transform JSON workflow definitions or job matrices into GitHub Actions YAML format for `.github/workflows/` pipeline files.
OpenAPI Specification Format Switching
Switch OpenAPI/Swagger specs between JSON (for code generation tools) and YAML (for human editing and version control readability).
- 1
Choose Conversion Direction
Select JSON→YAML or YAML→JSON mode. YAML-to-JSON is useful for validating YAML syntax and checking that configuration files parse correctly before deployment.
- 2
Paste Your Input
Enter your JSON object or YAML document. The tool validates syntax in real time — for YAML, common issues like tab indentation (YAML requires spaces) are flagged immediately.
- 3
Review and Copy the Output
The converted output is displayed with syntax highlighting. Note that YAML comments are stripped when converting YAML→JSON since JSON has no comment syntax. Copy the output directly or download it as a file.
Full YAML 1.2 Specification Support
Handles block scalars, multi-line strings, YAML boolean shorthands (`true`/`false`/`yes`/`no`), null values, and anchors/aliases in YAML input.
Indentation Control for YAML Output
Configure the indentation width (2 or 4 spaces) for JSON-to-YAML output to match the style conventions of Kubernetes, Ansible, or your team's config standards.
Browser-Only Processing for DevOps Security
Configuration files containing API keys, cloud credentials, and secrets manager paths are processed entirely in your browser — no values are ever transmitted externally.
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