Find matches, missing values, and duplicates between two pasted columns. Everything runs locally, with no account required.
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Text files ≤ 10 MB · result ≤ 10,000 differences
Find matches, missing values, and duplicates between two pasted columns.
Content is processed in your browser · Not sent to the application server · Free to use
Each non-empty line becomes a value. ExactDiff normalizes case and whitespace when requested, counts duplicates, and classifies values by side.
The comparison is deterministic: the same files and settings produce the same classification. File contents remain inside the current browser session.
Yes. Copy a single column and paste it into either side.
Yes. The results include occurrence counts and flag repeated values.
Runs in your browser
Content is processed in your browser and not sent to the application server
Works without an account