BleachBit is a free and open-source disk space cleaner, privacy manager, and computer system optimizer.

[9] CleanerML deals not only with deleting files, but also executes more specialized actions, such as vacuuming an SQLite database (used, for example, to clean Yum).

They also assert that multiple passes are significantly slower and may give the user a false sense of security by overshadowing other ways in which privacy may be compromised.

[11] Bleachbit was used to erase emails on Hillary Clinton's private server during her time as Secretary of State during the Obama administration.

[13][14] Subsequently, then presidential nominee Donald Trump claimed Clinton had “acid washed” and “bleached” her emails, calling it “an expensive process.”[15] After the announcement, BleachBit's company website reportedly received increased traffic.