/txtutils

YAML ↔ JSON Converter

Convert between YAML and JSON with auto format detection. Free online YAML to JSON converter for DevOps and developers. Runs in your browser.

Detected: YAML→ JSON
InputYAML
OutputJSON

About the YAML ↔ JSON Converter

Convert between YAML and JSON in both directions. The tool auto-detects which format you pasted and produces the other, so you don’t have to pick a mode. Everything runs in your browser — nothing is uploaded.

Common use cases

  • Docker & Kubernetes: switch config between YAML and JSON.
  • Readability: turn dense JSON into friendlier YAML.
  • CI/CD: adapt pipeline config to the format a tool expects.

How it works

  1. Paste YAML or JSON, or upload a .yaml, .yml, or .json file.
  2. The output updates automatically (or click Convert with auto-convert off).
  3. Copy or download the result, or Swap to convert it back.

Frequently asked questions

How is the format detected?

The tool inspects the syntax — JSON braces versus YAML keys, lists, and comments — then parses to confirm before converting.

Is my data uploaded?

No. Conversion happens locally in your browser — your data never leaves your device.