Free Online File Converter Tools
Convert CSV and Excel (XLSX) files instantly in your browser. Powered by DuckDB-WASM, handles up to 1 million rows with no server upload.
CSV Converter Tools
Convert CSV files to JSON, Parquet, TSV, XLSX and more. Reverse conversions also supported.
4 tools
Excel (XLSX) Converter Tools
Convert Excel XLSX files to CSV, JSON, or Parquet format. Handles up to 1 million rows.
4 tools
JSON Converter Tools
Convert JSON files to CSV and other formats. Paste or upload, no server required.
4 tools
Parquet Converter Tools
Convert Apache Parquet files to CSV, JSON, Excel, or TSV format. Browser-based with DuckDB-WASM.
4 tools