Processed locally — your file never leaves your device
Data Studio
View, edit, convert and analyze CSV, TSV, Excel, ODS, JSON, XML, YAML and Parquet files — entirely in your browser. Switch modes anytime; nothing is ever uploaded.
Drop a spreadsheet or data file hereor click to choose a file from your deviceNothing is uploaded — everything happens on your device.
Frequently asked questions
- Is my spreadsheet or data file uploaded anywhere?
- No. Every mode — Viewer, Editor, Converter and Analyzer — processes your file locally in your browser. Nothing is ever sent to a server.
- Can I switch between modes without re-selecting my file?
- Yes — drop a file once and switch freely between Viewer, Editor, Converter and Analyzer. The same loaded data, including any edits, carries over to every mode.
- Do the individual CSV/Excel/Parquet tool pages still work?
- Yes. Every individual tool (CSV Viewer, CSV to Excel, Parquet Viewer, and the rest) still has its own dedicated page and URL — Data Studio is a superset, not a replacement.
- Is there a file size limit?
- There's no server upload limit, since nothing is uploaded. The practical maximum depends on your device's memory and browser.