Sync

Make one folder match another — local↔local, local↔cloud, or cloud↔cloud.

• Newer — copy files that are newer on the source.
• Mirror — make the destination identical, including deletes (with explicit confirmation).
• Additive — only copy files that are missing; never overwrite.

A pre-flight plan shows file counts, total bytes, and direction before a single byte moves. Byte-weighted progress so a single large file doesn’t stall the bar. Cancel any transfer with confirmation.