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YAML ⇄ JSON
Convert YAML and JSON both ways, with the exact error line
chromeedgebraveoperafirefox🔒 Zero telemetryVersion 1.0.0
Description
Converts YAML to JSON and back right in the popup, pinpointing the line and column of indentation or syntax errors — perfect for Kubernetes manifests, CI pipelines and docker-compose files. Two editable panes, one-click bidirectional conversion and quick copy. Everything runs locally in the browser: zero telemetry, no data sent to any server.
Features
- Bidirectional conversion YAML → JSON and JSON → YAML
- Highlights the line and column of indentation/syntax errors
- Offending-line snippet with a caret under the error column
- Two editable panes with one-click copy to clipboard
- Built for Kubernetes, CI/CD and docker-compose
- 100% offline: no data leaves the browser, zero telemetry
Privacy
100% local processing in your browser. Zero telemetry: no data is sent to external servers.
Required permissions
Screenshots

Supported browsers
chromeedgebraveoperafirefox