YAML to JSON Converter
Upload a YAML or JSON file (or paste your code), choose a direction, then convert and download the result — free, private, and processed entirely in your browser.
About the YAML to JSON Converter
Our free online YAML to JSON converter transforms human-readable YAML configuration files into standard JSON — and back again. It's useful for feeding a YAML config file into an API, database, or frontend application that only understands JSON, or for turning a JSON payload into a cleaner YAML file for configuration management.
The entire conversion happens locally in your browser using the lightweight js-yaml library. Upload a file or paste your code directly — nothing is ever uploaded to a server, so your data stays completely private and secure.
How to Convert YAML to JSON
Step 1
Upload your file (or paste code)
Upload a YAML, JSON, or TXT file, or paste your code directly into the text box.
Step 2
Choose your conversion mode
Select YAML to JSON or JSON to YAML depending on the direction you need.
Step 3
Convert and download
Click "Convert", then copy the result to your clipboard or download the formatted file instantly.
Frequently Asked Questions
Can I convert both ways?
Yes. The tool is fully bidirectional and can convert YAML to JSON or JSON to YAML — just pick the mode you need before converting.
Are my files secure?
Yes. All parsing and conversion happen locally inside your web browser using the js-yaml library — no data is ever sent to our servers.
Why would I convert YAML to JSON?
YAML is popular for human-readable configuration files, but many APIs, databases, and frontend applications expect standard JSON — converting bridges that gap instantly.
Does it cost money?
No. The YAML to JSON converter is 100% free to use, with no registration or account required.