SpaceSniffer is an easy, fast and effective way to find where your wonderful free disk space has gone. Featuring a smart cached scanning engine, an easy and powerful filtering system and a nice to see animated disk layout, finding that old, forgotten, big JPEGs, database backups and so on is a painless operation. SpaceSniffer listens to file system events, so it keeps always in sync. It is capable also of scanning NTFS Alternate Data Streams.
What's new in this version:
Version 1.1.4 added classes filter, improved stability when deleting a focused folder, and paths with spaces behave again correctly in command line.