ConvertSheet is a high-performance, privacy-first web utility for developers, data engineers, and spreadsheet users. It transforms nested JSON, large CSVs, Parquet, and Excel spreadsheets directly inside browser memory via WebAssembly and DuckDB-WASM — 100% client-side with zero cloud uploads and zero tracking. In addition to file conversions, ConvertSheet features developer utilities and financial calculators.
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Developer Tools
ConvertSheet
Free, private client-side data converter for JSON, CSV, Excel, and XML.
- Free
- Web
- Made in India
Alternative to Convertio
Created by
@genshingamer
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