Does it handle huge CSVs?

Streaming in the browser — tens of thousands of rows perform well. Millions of rows strain memory; for those use a streaming tool (DuckDB, csvkit).

Sortable and filterable?

Yes — click column header to sort, use the filter bar to narrow rows. Compound filters (AND across multiple columns) supported.

Yes — numeric columns sort numerically; date columns sort chronologically. Mixed-content columns fall back to string sort.

Read-only viewer. For editing use a spreadsheet (Excel, Google Sheets) or a CSV-editing tool.

View CSV data in a sortable, filterable table. Part of the DevTools Surf developer suite. Browse more tools in the Data / SQL collection.

CSV files have no official maximum size limit, but Excel can only open CSVs with up to 1,048,576 rows (the row limit since Excel 2007).
The CSV format predates personal computers; it was used in the 1960s and 1970s for data exchange between mainframe systems.
Despite its simplicity, CSV has no standard way to represent null values; empty fields, 'NULL,' and 'N/A' are all used interchangeably.

Does it handle huge CSVs?: Streaming in the browser — tens of thousands of rows perform well. Millions of rows strain memory; for those use a streaming tool (DuckDB, csvkit).
Sortable and filterable?: Yes — click column header to sort, use the filter bar to narrow rows. Compound filters (AND across multiple columns) supported.
Does it infer types?: Yes — numeric columns sort numerically; date columns sort chronologically. Mixed-content columns fall back to string sort.
Can I edit?: Read-only viewer. For editing use a spreadsheet (Excel, Google Sheets) or a CSV-editing tool.

View CSV data in a sortable, filterable table. Part of the DevTools Surf developer suite. Browse more tools in the Data / SQL collection.

CSV files have no official maximum size limit, but Excel can only open CSVs with up to 1,048,576 rows (the row limit since Excel 2007).
The CSV format predates personal computers; it was used in the 1960s and 1970s for data exchange between mainframe systems.
Despite its simplicity, CSV has no standard way to represent null values; empty fields, 'NULL,' and 'N/A' are all used interchangeably.

Does it handle huge CSVs?: Streaming in the browser — tens of thousands of rows perform well. Millions of rows strain memory; for those use a streaming tool (DuckDB, csvkit).
Sortable and filterable?: Yes — click column header to sort, use the filter bar to narrow rows. Compound filters (AND across multiple columns) supported.
Does it infer types?: Yes — numeric columns sort numerically; date columns sort chronologically. Mixed-content columns fall back to string sort.
Can I edit?: Read-only viewer. For editing use a spreadsheet (Excel, Google Sheets) or a CSV-editing tool.