Sfletter

You can send a protected attachment (PDF, JPEG) and a message to any email service that is available on Windows.

Free Personal Windows

Lockbin

Lockbin is a web application for sending private email messages and files. People use it to send things like credit card numbers or confidential information.

Freemium Mac OS X Windows Linux Android Android Tablet

Walnut Secure Email

Walnut Secure Email is P2P, person to person or end to end secure mail application that protects all of end-user existing accounts, including Gmail, Yahoo Mail...

Commercial Windows Linux Android iPhone Blackberry

Sendinc

Secure email made simple Sendinc enables anyone to send and receive military-grade encrypted email in minutes and requires no special technical expertise. There is...

Commercial Web

Encipher.it

Encrypting email with Encipher.it is a simple way to protect your sensitive data. You can encrypt emails or text messages and only the recipient can decrypt it with...

Free Web

Shazzlemail

ShazzleMail is the first privacy-protective and surveillance-resistant secure email service.

Free Personal Mac OS X Windows Linux Android iPhone

Pictle

Pictle is a simple, beautiful way to send secret images. After the image is viewed, it will be deleted. .

Free Web

Jumble.io

Jumble provides a secure email service that integrates with existing email providers so you don’t need to change your email address or change how you interact with your...

Freemium Windows iPhone Chrome Gmail

secserv.me

Create client-side encrypted message. Chat anonymously client-side encrypted. Also supports sending files (also client-side encrypted!).

Free Web

Temp.PM

Temp.PM (formely known as ParaNote) stands for Temporary Private Message. Temp.PM has a strong emphasis on privacy and security. It uses strong encryption, secure...

Free Open Source Web