Set Operations Calculator
Calculate union, intersection, A minus B and symmetric difference of two finite text sets. Processing takes place locally in your browser.
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Set Operations Calculator
Enter exactly two non-empty lines: the first is set A and the second is set B. Items on each line are separated by commas, spaces or their supported full-width comma equivalent.
The two sets may contain up to 20000 items in total, with at most 100 UTF-16 code units per item. Duplicate values within a line are automatically collapsed by set semantics.
Output contains A union B, A intersection B, A minus B and the symmetric difference. For A=1,2,3 and B=3,4,5 the intersection is 3 and the union is 1,2,3,4,5.
Values are compared as case-sensitive text. The result preserves first-seen insertion order; it does not numerically sort items or coerce numeric-looking strings.
Whitespace cannot be retained inside a single item, and commas cannot be escaped. The page does not calculate Cartesian products, multisets, fuzzy sets or set cardinality separately.
Enter exactly two lines: set A first and set B second
Both sets must contain at least one item; together they may contain at most 20000 items, each at most 100 UTF-16 code units
Input must not exceed 500000 UTF-16 code units
Limits count the supplied items before duplicate removal. Separate items with , or ， or whitespace within each line. Arabic ، and Japanese 、 are ordinary item text, not separators. Do not include A:, B: or braces around the example input. After editing, calculate again and copy the result; Clear removes both the input and result. There is no file download or separate B−A result.
Processing takes place locally in your browser.