JFPJSON Format Plus

List Deduplicator

Clean copied email lists, IDs, tags, names, or spreadsheet columns. Empty entries are removed, surrounding whitespace is trimmed, and comparison can be case-sensitive or case-insensitive.

Local text workbenchBrowser local
Processed output will appear here.
Processed output will appear here.

Data handling notes

  • The first occurrence keeps its original spelling and position.
  • Input is split by new lines, commas, semicolons, and common Chinese separators.
  • The list stays in the browser and is never uploaded.

FAQ

Is the list sorted?No. The original order is preserved and only later duplicates are removed.
What happens to `Ada` and `ada`?They merge in case-insensitive mode and remain separate in case-sensitive mode.