What if my YAML has a syntax error?

The tool shows the parser's specific error message, which usually points to the problematic line.

Are YAML anchors and references supported?

Yes, common YAML features including anchors, aliases and multi-document markers are parsed correctly.

Convert YAML data into JSON format.

name: Ada Lovelace

role: Engineer

skills:

- JSON

- YAML

Your file never leaves this browser tab — everything runs locally on your device.

Converting a Kubernetes, Docker Compose or CI config file to JSON for a tool that requires it.
Understanding the exact structure YAML indentation produces.
Debugging a YAML parsing issue by inspecting the equivalent JSON.

Compare two JSON documents side by side and see exactly what changed.

Create a downloadable QR code from any text or URL.

Decode a JWT's header and payload. Decoding is not signature verification.

Generate one or many random UUID v4 values.