SecretNotes/Pro is described as 'Zero-knowledge encrypted notes that self-destruct after reading. Encryption happens in your browser - the server never sees your content. Includes encrypted messenger and secure requests. Free, no account needed' and is an website in the security & privacy category. There are more than 10 alternatives to SecretNotes/Pro, not only websites but also apps for a variety of platforms, including Self-Hosted, Mac, Windows and Linux apps. The best SecretNotes/Pro alternative is Pastebin.com, which is free. Other great sites and apps similar to SecretNotes/Pro are GitHub Gist, PrivateBin, Rentry.co and hastebin.