All passphrases on this page are generated in JavaScript by your own browser. Unless you have malware on your system, they'll never leave this page. Sound suspicious to you? Good! Read the source for yourself, satisfy yourself it's safe, and if you're extra-paranoid, download your own local copy.
Each of the passphrases below consists of Base58 characters and is 22 characters long. That should get you over 128 bits of entropy (58 log base 2 = about 5.85, 5.85 x 22 = 128.7), which is more than enough for any practical purpose.
These are shorter phrases that work well as answers to security questions like favorite ice cream or best friend in grade school.
Other good user-friendly entropy generators