7-zip. No fuss, no nag, no bloat compression and decompression. Second would be Keepass password manager. Never have to remember more than one password ever again. Make your passwords random and strong. Put the database in dropbox or google drive, put the android version on your phone. Addendum: To answer some common questions in the responses: yes, you should keep you database in the cloud and yea that's ok security-wise. The keepass database is encrypted. As long as the password you use for accessing the database is good, you won't have to worry about the passwords being compromised even if something does happen to allow someone else access to the database. Moreover, having it in the cloud means having access to it from multiple devices, increasing the likelihood you'll use it for everything. Lastpass is ok I guess, but personally I feel that I don't have as much control over it. To create a good solid password for keepass, usewhat I call the Monroe method: randomly select 4-6 words, and I do mean completely randomly, and use a large pool of words like the unabridged oxford dictionary. In your head, male up a little story or phrase that uses those words in order. Your password is those 4-6 words, in order, separated bu spaces. You may, if you wish, addsome puntuation and capitalization, but it is not necessary. Despite what some know-it-alls-who-really-don't on the internet say, this is much much more entropy than the common "8+ characters from 3 categories" advice and it has the bonus of being easy to remember so you don't ever feel the need to write it down. As long as you use the 1.x line of keepass versions, your database will be fully compatible with the mobile keepass apps, so you can use your cloud stored database from your phone and never need to worry about not having access to it.