MMaxTools

CSV Viewer

Preview CSV files as a clean table — no spreadsheet needed.

The CSV Viewer renders pasted CSV data as a readable table with the first row styled as a header. Auto-detecting comma, semicolon or tab delimiters, it gives you an instant look at exports without opening a spreadsheet application.

Quick inspection is the classic need: someone sends a .csv, you want to see its columns, spot the header row and sanity-check a few records before writing code or importing. This viewer parses quoted fields correctly (commas and line breaks inside quotes) and shows counts so you know what you are dealing with.

The viewer is read-only by design — it is for looking, not editing. When you need to transform the data, pair it with the CSV to JSON converter. Everything runs locally in your browser.

Delimiter

Paste CSV data to preview it as a table — useful for quickly inspecting exports without opening a spreadsheet.

How to use the CSV Viewer

  1. Paste CSV data, or copy a range from a spreadsheet.
  2. Choose a delimiter if auto-detection misses.
  3. Read the table with header highlighting.
  4. Check the row and column counts.
  5. Copy or transform the data onward as needed.

Frequently asked questions

Which delimiters are supported?

Commas, semicolons (common in European exports) and tabs (what spreadsheet copy-paste produces). Auto-detection inspects the first row and picks the most frequent separator.

Does it handle quoted fields with commas inside?

Yes — the parser follows standard CSV quoting: fields wrapped in double quotes may contain commas, quotes (doubled) and line breaks without breaking the table.

Is this safe for sensitive data?

Yes — everything is parsed in your browser with no upload, so you can preview customer lists and internal exports without sending them anywhere.

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