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Count words, find and replace text, remove duplicate lines and sort lists. Extract emails or URLs and inspect Unicode locally in your browser.
Explore tools
Preview ICU MessageFormat1
Render nested ICU select and plural messages locally, and locate invisible syntax characters with original source positions.
MF1 pattern + parameter JSON → Complete text + 2 originals + report
Merge three versions of a text file
Combine local and remote edits against a common ancestor, inspect conflicts and save the complete chosen text.
Base + local + remote UTF-8 text → Complete merged text + merge report
Original word list spelling check
Check every original English word under an explicit apostrophe policy and retain complete lookup and whitelist evidence.
UTF-8 TXT / JSON → CSV + JSON + original + dictionary + licenses