Preview a date-prefix rename

Paste file names, one per line. This practice page rearranges an existing DD-MM-YYYY prefix to YYYY-MM-DD and leaves other names alone. It cannot rename your files.

Search: ^(\d{2})-(\d{2})-(\d{4})-
Replace: $3-$2-$1-

This uses browser JavaScript for this one pattern. It is not PowerRename's interface or a test of its Boost engine. Numeric prefixes are rearranged without validating calendar dates. Collision checks cover only the names entered here; existing destination files outside this list are unknown.