JSON ↔ YAML Converter
Convert between JSON and YAML formats instantly. Syntax validation included. No server required.
How to Use
- Select the conversion direction tab: JSON → YAML or YAML → JSON.
- Paste your JSON or YAML in the left panel.
- The result updates in real time — copy it with one click using the Copy button.
Frequently Asked Questions
- Does it support nested objects?
- Yes. Both JSON and YAML support arbitrarily deep nested objects and arrays, and this converter handles them correctly.
- What YAML features are supported?
- The converter supports standard YAML 1.2 including scalars, sequences, mappings, multi-line strings, and anchors.
- Will comments be preserved?
- No. JSON does not support comments, so when converting YAML→JSON all YAML comments are stripped. When converting JSON→YAML, no comments are added.
- Is there a size limit?
- There is no hard size limit. Conversion runs entirely in your browser, so very large files may take a moment to process.