Universal Converter
Convert JSON ↔ YAML ↔ XML ↔ CSV ↔ Excel in your browser.
JSON ↔ YAML ↔ XML ↔ CSV ↔ Excel
Paste or upload data and convert instantly in your browser.
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Frequently Asked Questions
Do these tools send my data to a server?
No. Everything runs in your browser using Web APIs and open‑source libraries. Nothing is uploaded.
Can I convert Excel files with multiple sheets?
Currently the first sheet is used. Multi‑sheet selection is planned.
Is this suitable for large files?
Yes within browser memory limits. For very large datasets we recommend chunking.