🔄 YAML ⇄ JSON Converter
Instantly convert between YAML and JSON · no server, pure browser
📘 What is this YAML to JSON converter?
Free, fast and private – this tool transforms YAML (YAML Ain’t Markup Language) into JSON (JavaScript Object Notation) and vice versa. Whether you’re working with configuration files, API payloads, or data serialization, switch formats with a single click.
⚡ How to use it
- 1. Choose direction – select “YAML → JSON” or “JSON → YAML”.
- 2. Paste your code into the left input box.
- 3. Click “Convert” (or press Ctrl+Enter) – the result appears instantly on the right.
- 4. Copy or swap – use the buttons to copy output or swap input/output.
🔥 Why developers love it
- 🔒 100% private – all conversion happens locally; your data never leaves your device.
- 🌐 Works offline after first load (library cached).
- 📄 Clean, validated output – syntax errors are highlighted.
- 🚀 Fast & accurate – powered by the trusted
js-yamllibrary.
⚡ Choose direction and click Convert. Uses 2-space indentation for YAML.
⚡ free developer tool · YAML ⇄ JSON · instant conversion · no signup