The best alternatives to SafeNote are NordLocker, 1ty.me, and sondd. If these 3 options don't work for you, we've listed a few more alternatives below.
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From vacation photos to your digital creations and documents of any kind – nearly all files contain bits of sensitive information. And that makes them worth protecting. — Creators of NordVPN
You can't share sensitive info over IM or email. These methods are not secure as anyone with little knowledge can intercept this information during transmission. Using 1ty.me as the "middle man" you can safely and securely transfer this data to your recipient. Visit our about or FAQ page for more info.
Need to send something to someone? (I know, vague right). Send up to 3gb for free to anyone at anytime, as many times as you like. Just upload your files, tell us who to send it to and we'll shoot them through a link. It's pretty simple.
Burner Note is a free, ad-free and open sourced service for sending secure text based notes that are completely erased from existence once they've been read. The product utilises AES-256-CBC encryption signed with a message authentication code (MAC).
Datash(a free and open-source application) helps you to send and receive text and files from one device to another one through browser without any login or registration using end-to-end encryption which ensures data is being sent to the intended person.
GpgFrontend is a Powerful, Easy-to-Use, Cross-Platform, and Installation-Free OpenPGP Crypto Tool. By using GpgFrontend, you can quickly encrypt, decrypt and sign text or files. By using it, you can take the initiative to protect privacy in your own hands.