Count List Items

Items appearing more than once – by distinct key, not by total occurrences. So apple, apple, apple, banana, banana has 2 duplicates (the keys “apple” and “banana”), not 5. If you want total duplicate occurrences instead, subtract uniqueItems from totalItems.

Total = how many items in the list, including repeats. Unique = how many distinct items (keys). The example above has total 5, unique 2.

When off (default), all comparisons lowercase the key. The first-seen original casing is preserved for display. So "Apple, apple, APPLE" case-insensitive counts to 1 entry, displayed as “Apple” (the first one seen).

When on (default), " apple " and "apple" count as the same item. When off, leading/trailing whitespace makes them distinct entries. Useful when whitespace itself is meaningful in your data.

Newline (default), comma, semicolon, tab, pipe, and space. For multi-character or regex separators, pre-process your input (e.g., replace all ;|, with n before pasting).

Tab-separated values – two columns: item and count, separated by tabs, one row per line. Pastes cleanly into Excel/Sheets/Numbers and into any text editor as aligned columns.

If multiple items tie for longest, only the first one encountered is shown. Same for shortest. The “longest” field is informational, not exhaustive.

Empty results after split + trim are dropped – they don’t count toward total. If you want to count them, turn off “trim whitespace” so empty rows survive (they’ll be counted under the empty key, which is rare to want).

No. All processing happens in the browser.

500 rows for screen render (otherwise the page would slow down). The TSV download includes all rows.