FlowCrypt Overview

FlowCrypt is an email encryption software. It uses the OpenPGP standard to encrypt outgoing messages on your device with keys only you and your recipient have access to.

We currently offer the following FlowCrypt apps on the following platforms. Visit our downloads page to get the solutions described below:

How OpenPGP encrypts your data

In OpenPGP, your data encryption is held by a pair of public and private keys. They play a critical role in the encryption, decryption, and digital signature processes for secure communication and data integrity. Our products automatically generate these keys for you, simplifying the process of using encrypted emails.

When you use FlowCrypt to send an encrypted email to someone, you use the recipient’s public key to encrypt the email. Only the recipient’s private key can decrypt the message and reveal its content. This ensures that only the intended recipient can access the email content. Additionally, the private key is used to sign emails. This allows the recipient of the email to verify that it was sent by the person who claims to have sent it using that person’s public key. It assures that the data being communicated or exchanged hasn’t been tampered with or altered during transmission.

FlowCrypt Browser Extension Screenshots

Here is what it looks like when you write an encrypted email in your browser:

An example of a received email encrypted by FlowCrypt:

FlowCrypt Android App Screenshots

Open the app, choose the desired email provider, and send encrypted emails:

FlowCrypt iOS App Screenshots

The iOS app works the same way as the Android version:

Enterprise products

At FlowCrypt, we provide additional solutions for enterprise customers. You can learn more about this service by exploring our Enterprise Deployment Overview guide.

Feature availability across platforms

View the Feature Availability guide to learn about the features we provide per platform.