CSV Viewer
Open a CSV as a sortable, filterable table without Excel — nothing uploaded.
About this viewer
Paste or drop a CSV and read it as a proper table: click headers to sort (numbers as numbers), type to filter across every column, see the row count. Comma, semicolon, tab and pipe delimiters are detected. Everything stays in the page.
Why a viewer beats opening it in a spreadsheet
Spreadsheets “help” with CSVs in ways that corrupt them: leading zeros vanish from ID numbers, long digits become scientific notation, dates get reinterpreted for your locale, and opening a 200 MB export can take a coffee break. A viewer changes nothing — it shows the file's actual contents. The parser handles what naive splitting breaks: quoted fields containing commas, doubled quotes inside quotes, Windows line endings, and delimiter sniffing for European semicolon files and tab exports. Large files render the first 2,000 matching rows for speed while filtering and counting the whole set. Nothing is uploaded, which matters for the customer lists and financial exports CSVs usually are. To restructure the data, CSV to JSON and JSON to CSV convert; to compare two exports, the text diff.
Frequently asked questions
Does it handle commas inside fields?
Yes — quoted fields with commas, doubled quotes and line breaks inside quotes all parse correctly, following the CSV standard (RFC 4180).
My file uses semicolons — will it work?
Yes — the delimiter is sniffed from the first line: commas, semicolons, tabs or pipes.
Is there a size limit?
Whatever your browser's memory allows; multi-megabyte exports are fine. Only the first 2,000 matching rows are drawn, but sorting, filtering and counts cover every row.
Is my data uploaded?
No — parsing and display happen entirely in the page. Close the tab and it's gone.