What is YAML ↔ JSON Converter?

Converts YAML data to JSON and JSON back to YAML in both directions.

How do I use YAML ↔ JSON Converter?

Type or paste your data into the field on this page and press the button. The result is calculated instantly in your browser — nothing is uploaded.

Is YAML ↔ JSON Converter free?

Yes, YAML ↔ JSON Converter is completely free. No signup, no downloads and no usage limits.

YAML ↔ JSON Converter

Developer

Convert configuration data between YAML and JSON in either direction, with clear error messages. Free and private; your data never leaves your browser.

Input

Output

What is a YAML ↔ JSON Converter?

A YAML ↔ JSON Converter translates configuration data between the YAML text format and strict JSON syntax in both directions. Use it when porting config files, mocking APIs or switching between tools that expect one format or the other. Conversion runs with a small built-in YAML parser, so no data leaves your browser.

When is it useful?

Config files: migrating .yml settings into JSON-based tools and CI pipelines.
Validation: checking hand-written YAML indentation or JSON commas.
Documentation: converting examples between the two formats.

Is my data safe?

Yes. Parsing and conversion happen entirely in your browser; your data is never sent or stored. Configurations with secrets can be converted safely.

Frequently Asked Questions

What is YAML ↔ JSON Converter?
Converts YAML data to JSON and JSON back to YAML in both directions.
How do I use YAML ↔ JSON Converter?
Type or paste your data into the field on this page and press the button. The result is calculated instantly in your browser — nothing is uploaded.
Is YAML ↔ JSON Converter free?
Yes, YAML ↔ JSON Converter is completely free. No signup, no downloads and no usage limits.