CSV Viewer

Click a column header to sort: first click = ascending (↑), second click = descending (↓), third click = unsorted. The tool detects numeric columns (parsing the whole column as numbers) and sorts numerically when possible, otherwise alphabetically with locale-aware comparison (Unicode characters sort correctly).

The tool handles up to ~5000 rows comfortably. Beyond that, the browser warns but still renders. For very large datasets (50k+ rows), browser DOM limits make table rendering slow – use the search filter to narrow results, or split the CSV into smaller chunks. A future enhancement could add virtualization (only rendering visible rows) for huge files.

The parser is RFC 4180 compliant – quoted fields preserve embedded newlines. When rendered, newlines inside cells become <br> tags so the cell content is visually multi-line.

Not in the rendered table – it’s read-only. Edit the CSV text in the input area above and the table auto-updates (250 ms debounced). For full spreadsheet editing, use a dedicated tool like Excel, Google Sheets, or LibreOffice Calc.

Yes – case-insensitive substring match across every cell of every row. A query like “admin” finds any row containing “admin”, “Administrator”, “Admin Panel”, etc. in any column. The stats card shows how many rows matched.

Yes. Set delimiter to “Tab” or let auto-detect identify tabs from the first line. TSV is common for Excel cells copied to clipboard or database exports – no quoting needed since tabs almost never appear inside text data.

This viewer: lightweight, instant, browser-based, no install, free. Limited to CSV-style flat tables – no formulas, charts, formatting, or multi-sheet support. Excel: full spreadsheet app – formulas, pivot tables, charts, but requires installation and is much heavier for “just view a CSV” use cases. Use this viewer for quick inspection; use Excel/Sheets for analysis.

Yes. CSV input + uploaded files all stay in your browser. Nothing is uploaded to any server. The HTML escaping is purely defensive – protecting YOU from malicious CSV content, not the other way around.