YAML ↔ JSON Converter
All conversion is done entirely in your browser using js-yaml. No data is sent to any server.
Privacy First: Your files are processed securely. Whenever possible, processing happens in your browser and files are never stored on our servers.
Bidirectionally convert between YAML and JSON entirely in the browser using js-yaml. Paste or upload .yaml/.yml/.json files. Choose 2 or 4 space indentation. Toggle minify mode for compact JSON output. Errors are displayed with descriptive messages directly in the output panel - no silent failures. Download the converted file or copy to clipboard. Comes with sample YAML and JSON for quick testing. No data is sent to any server.
How to Use
- 1Choose YAML → JSON or JSON → YAML mode
- 2Paste your YAML or JSON into the input panel (or upload a file)
- 3Set indentation (2 or 4 spaces) and enable Minify if needed
- 4Click Convert to see the output in the right panel
- 5Copy the output or click Download to save the file
Features
- Bidirectional YAML ↔ JSON conversion via js-yaml
- 2-space and 4-space indentation options
- Minify JSON output toggle
- File upload (.yaml/.yml or .json)
- Error messages displayed inline in the output panel
- One-click copy and file download
- Sample texts for instant testing
- Anchor and alias resolution support
- 100% browser-based - no data sent to server
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