BleachBit is a free software disk space cleaner, privacy manager, and computer system optimizer.
Identifying and removing cache, cookies, Internet history, temporary files, and log files for 50 applications including Firefox, Opera, Safari, APT, Google Chrome, Flash.
Removing unused localizations (also called locale files) which are translations of software.
Shredding files and wiping unallocated disk space to minimize data remanence.
Wiping unallocated disk space to improve compression ratio for disk image backups.
Shredding any file selected by the user.
Vacuuming Firefox’s SQLite database which suffers fragmentation. No other system cleaner features vacuuming.
Command line interface for scripting automation and headless operation.
Translated to 32 languages.