Updated June 2026 · runs 100% in your browser
YAML to JSON
Convert YAML into JSON. Paste, convert, copy or download — on your device, no upload.
🔒 Processed on your device · 0 bytes uploaded
How it works
Paste YAML and press Convert to get formatted JSON.
It all runs in your browser with JavaScript, so your data never leaves your device. It stays free, unlimited and private, and works offline once loaded.
About YAML to JSON
Turn a YAML config or document into standard JSON — useful when a tool or API expects JSON.
Frequently asked questions
How do I use YAML to JSON?
Paste YAML and press Convert to get formatted JSON.
Does it support multi-document YAML?
It converts a single YAML document. For multiple documents, convert them one at a time.
Is my data uploaded?
No. Everything is parsed and converted in your browser with JavaScript — your data is never sent to a server.
What is a YAML file?
YAML is a human-friendly data format often used for configuration. It represents the same structures as JSON but uses indentation instead of brackets, making it easy to read.
What is a JSON file?
JSON (JavaScript Object Notation) is a lightweight, human-readable text format for structured data. It's the standard for web APIs and config files because both people and programs read it easily.