Text Diff Compare failed or not working — what can you do?

What you can do

• Open Text Diff Compare and retry with a small known-good sample.
• Confirm you are not hitting this limit: Dedupe is on by default (set compare). With “keep duplicates”, counts cancel: common gets min(countA, countB); extras go to Only A / Only B.
• Check the FAQ below—encryption, size limits, and format mismatches are the usual causes.
• Still stuck? Try a private window, or read the full guide /#article/diff.

FAQ

What limitations should I know?

Dedupe is on by default (set compare). With “keep duplicates”, counts cancel: common gets min(countA, countB); extras go to Only A / Only B.

When might it fail?

Prefix/suffix splitting sorts items by rules.

What else should I watch for?

After comparison, the summary result (Only A / Only B / Common) is auto-copied.

Any other important notes?

Character limit: per session — process in batches if exceeded.