JSON / YAML / XML Converter | JSON to YAML, XML to JSON Online
Convert JSON, YAML, and XML with auto-detect, prettify, minify, and validation — fast, client-side, and SEO-friendly for developers.
No uploads. Everything runs locally in your browser.
Why use this converter?
- Instant JSON/YAML/XML transforms without uploads.
- Auto-detect, validate, and show readable errors.
- Prettify for debugging, minify for payloads.
- Copy, clear, swap, and sample data to move fast.
Supported conversions
JSON vs YAML vs XML
JSON is lightweight and strict, YAML is human-friendly and indentation-based, and XML is tag-driven with attributes. Use JSON for APIs, YAML for configs, and XML when you need attributes or schemas.
How to get clean output
Run Convert for a validated transform, then Prettify for readability or Minify for compact payloads. Swap flips formats so you can round-trip without retyping.
Privacy-first
Everything runs in your browser. No files leave your machine, so sensitive configs and payloads stay private.
How to use
- Paste your JSON, YAML, or XML.
- Auto-detect or pick the source format, choose your target, then Convert.
- Copy, prettify, or minify the result and keep working.
Features
- Bidirectional JSON ⇄ YAML ⇄ XML conversion.
- Auto-detect with inline validation errors.
- Prettify, minify, copy, swap, and sample data.
- 100% browser-side processing for privacy.
FAQ
Is my data sent to a server?
No. Detection, parsing, and conversion all run locally in your browser.
Which formats are supported?
JSON, YAML, and XML in any direction, with prettify and minify options where relevant.
What happens if my input is invalid?
The converter shows a readable inline error and won’t crash the page.
Can I swap formats quickly?
Yes. Use Swap to flip source/target and re-run Convert.
Does it support attributes in XML?
Yes. Attributes are preserved when converting between XML and JSON/YAML.