YAML ⇄ JSON Converter
Convert between YAML and JSON both ways — entirely in your browser.
100% client-side · your data never leaves your browser.
Frequently Asked Questions
Common questions about YAML ⇄ JSON Converter
Paste your YAML into the input with YAML → JSON selected and the tool instantly produces pretty-printed JSON. It supports nested maps, block sequences, flow collections, scalars, and comments. Everything is parsed locally in your browser.
Yes. Switch to JSON → YAML mode and paste valid JSON. The tool serializes it to clean, 2-space-indented YAML, quoting strings only where necessary so the output stays readable.
The common configuration subset: nested mappings, block and flow sequences, flow maps, quoted and plain scalars, numbers, booleans, null, and comments. Advanced features like anchors, aliases, and block scalars are not fully supported.
No. The conversion runs entirely client-side. Your data is never sent to a server, stored, or logged.