FlowCrypt is a Chrome add-on developed by FlowCrypt that provides simple end-to-end encryption for email and attachments on Google mail. This free program uses OpenPGP to ensure the security of your messages and files.

With FlowCrypt, you can easily send private PGP encrypted emails directly from Gmail. The add-on sets up in just a few clicks and allows you to send encrypted email and attachments to anyone. You can also receive encrypted email directly or through the Encrypted Contact Page. Additionally, FlowCrypt supports digital signatures for added security.

FlowCrypt's website provides comprehensive documentation on how to use the add-on effectively. For those who prefer to use mobile devices, FlowCrypt also offers Android and iOS mobile apps for download.

Overall, FlowCrypt is a user-friendly and reliable tool for encrypting your Gmail messages and attachments, ensuring your communications remain secure and private.