YAML ↔ JSON converter
Free · no sign-upConvert YAML to JSON and JSON back to YAML — right in your browser.
Runs entirely in your browser — your data never leaves your device and nothing is stored. No sign-up.
Convert YAML to JSON and JSON back to YAML in seconds. Paste YAML to get formatted JSON, or paste JSON to get clean YAML. Everything runs in your browser; nothing is uploaded. Free, no sign-up.
- ✓YAML → JSON and JSON → YAML
- ✓Standard YAML 1.2 parsing
- ✓Pretty-printed output
- ✓Copy the result in one click
- ✓Runs in your browser — nothing uploaded
Who it's for
- Turning a config file into JSON
- Converting an API payload to YAML
- Reading a Docker or CI YAML as JSON
- Quick format switching
How it works
- 1Choose a direction (YAML→JSON or JSON→YAML).
- 2Paste your data.
- 3See the converted output.
- 4Copy it.
Frequently asked questions
How do I convert YAML to JSON?+
Paste your YAML on the YAML → JSON tab and the formatted JSON appears instantly. Comments and anchors are resolved as part of parsing.
How do I convert JSON to YAML?+
Switch to JSON → YAML and paste valid JSON; you get clean, indented YAML back.
Which YAML version is supported?+
It uses a standard YAML 1.2 parser, so common config files (maps, sequences, scalars, nesting) convert as expected.
Is my data uploaded?+
No. The conversion runs entirely in your browser; your data never leaves your device.
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