YAML to JSON & JSON to YAML Converter
Convert between YAML and JSON formats. Instant, validated, bidirectional.
How to Use YAML ↔ JSON Converter
- 1
Choose direction: YAML → JSON or JSON → YAML.
- 2
Paste your input.
- 3
Output is validated and formatted — copy and use.
About YAML ↔ JSON Converter
Convert between YAML and JSON in both directions with our free online converter. YAML is everywhere in modern DevOps — Kubernetes manifests, CI/CD pipelines, Docker Compose files — while JSON dominates APIs and data interchange. This tool handles both, validates input, and shows clear error messages for malformed data. Runs entirely in your browser.
Built by
Fateh Raiyan IshmumFull-stack dev since 2020. Full-stack web developer since 2020. Builds privacy-first, open-web tools. Specialises in Next.js, TypeScript, and performance-focused design.
Frequently Asked Questions
YAML is human-friendly for config files (Kubernetes, GitHub Actions, docker-compose). JSON is machine-friendly for APIs. Converting between them is common.
Basic YAML is fully supported. Anchors and merge keys are resolved during conversion.
YAML 1.2, the current standard.