CSV analysis
The CSV stays on your device. UTF-8 only, up to 32 MiB, 24 million decoded characters, 50,000 rows, 100 columns and 500,000 cells.
ready
Processing runs on your device.
Frequently asked questions
Which files can I load?
One UTF-8 CSV up to 32 MiB. Limits of 24 million decoded and retained characters, 50,000 rows, 100 columns, 500,000 cells, 16,384 characters per cell and 32 MiB for export protect browser memory. XLSX is deliberately not accepted.
What can I analyse?
Text filters, a stable sort, a column summary and a bar or line chart with at most 24 groups. Free SQL queries and XLSX are deliberately not offered.
Are spreadsheet contents uploaded?
No. The file, filters, chart and CSV export remain entirely on your device. The export normalizes CSV and prefixes cells with a formula-like beginning with an apostrophe.