YAML ↔ JSON-converter
Converteer direct tussen YAML en JSON met realtime validatie.
Perfect voor configuratiebestanden, API-specificaties en infrastructuurdefinities.
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About
A free online tool for bidirectional YAML ↔ JSON conversion with real-time validation. Powered by the js-yaml library. Useful for config file migration, CI/CD pipeline setup, Kubernetes manifest inspection, and API spec authoring.
Sensitive config files can be processed safely — nothing ever leaves your browser.
How to Use
Select Direction
Choose YAML→JSON or JSON→YAML using the tab buttons.
Paste Your Content
Paste YAML or JSON into the left text area.
Copy the Result
Converted output appears instantly on the right. Click "Copy" to grab it.
Glossary
- YAML
- YAML (Yet Another Markup Language) — a human-readable data serialization format using indentation. Widely used for config files.
- JSON
- JavaScript Object Notation — a data format using braces and brackets. The standard for web APIs and configs.
- Serialization
- Converting a data structure into a storable/transmittable string format. Deserialization is the reverse.
- YAML Anchor / Alias
- A YAML feature using & to define an anchor and * to reference it, reducing repetition.
- js-yaml
- A reliable JavaScript YAML library supporting YAML 1.2 / RFC compliance.
- Indentation
- In YAML, structure is expressed using consistent spaces (not tabs). Inconsistent indentation causes parse errors.
FAQ
- Q.Is my data sent to a server?
- No. js-yaml runs entirely in the browser; your content is never transmitted.
- Q.Are YAML anchors and aliases supported?
- Yes. js-yaml expands anchors and aliases correctly when converting to JSON.
- Q.Does it support Unicode / non-ASCII characters?
- Yes. UTF-8 content including Japanese, Arabic, and other scripts is fully supported.
- Q.Does it handle Kubernetes multi-document YAML?
- Multi-document YAML separated by --- is handled; the first document is converted.
Use Cases
⚙️ Config Files
Convert GitHub Actions and CI/CD configs between YAML and JSON.
☸️ Kubernetes
Inspect and debug Kubernetes YAML as JSON.
📡 API Development
Convert OpenAPI/Swagger specs between formats.
🔧 Infrastructure
Quickly inspect Ansible, Helm, or Terraform configs.
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Laat ons uw mening weten om ons te helpen de tool te verbeteren.
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