Gap Finder

Paste list A and list B separated by a blank line. Instantly see which items appear only in A, only in B, and in both — the fastest way to spot keyword or URL gaps against a competitor.

List A, blank line, then list B
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How to use

Paste list A and list B separated by a blank line. Instantly see which items appear only in A, only in B, and in both — the fastest way to spot keyword or URL gaps against a competitor.

Tip: press “Load sample” to fill the box with realistic example data.

Everything runs locally in your browser — no upload, no account, no API key.