File Converter
Convert CSV and Excel files to any format
How it works:: Upload a CSV or Excel file → choose your output format → configure options → download the converted file. Privacy first: Everything happens in your browser — your data never leaves your device.
Benchmark Performance
Real-world tested, production-ready
~440K rows/sec
10M+ rows (CSV→JSON, OPFS)
2.4 GB OPFS output
View full benchmark →