18.9
SecureMyEmail encrypts email while letting you keep your current email provider and address.
Free planAndroidiOSWeb
Best File Encryption Tools in 2026
Protecting messages and attachments starts with comparing how each tool handles access and delivery. Look at admin access controls, recipient verification, secure delivery, and message expiry to see which safeguards align with your needs. Attachment limits can matter for larger files, while Gmail and Outlook integration may help you fit a tool into an existing email workflow. Free-plan availability and paid-from…
28.4
AndroidiOSWeb
38.1
Send It Secure is an encrypted messaging platform that lets people send protected messages to any email address through their existing email provider.
Free planiOSWebAPI
- 4
Virtru Data Security Platform
Virtru Data Security Platform protects sensitive information shared through email, files, SaaS applications, and mission partner environments.
AndroidiOSWebAPI8.0From $119 a month - 5
Lockbin
Lockbin is a web application for sending private email messages and files.
Free planWebLinuxmacOSWindows7.9From $10 a month - 6
Mailvelope
Mailvelope adds client-side end-to-end email encryption using PGP to supported webmail services.
WebExtension7.5From €3 a month - 7
FlowCrypt
FlowCrypt is an email encryption service offered as a Chrome extension, with other platforms and a mobile application also listed.
Free planExtension7.3Free plan - 8
DataMotion Secure Email Exchange
AndroidiOSWebAPI7.3 - 9
MailHippo
MailHippo is a secure email messaging platform designed to protect patient data with HIPAA-compliant email.
WebAPIWindows7.3From $4.95 a month - 10
gpg4o
gpg4o is a Windows add-in for Microsoft Outlook that encrypts and decrypts email messages and attachments, and can sign or check them.
Free planWindows7.3From €5,195 a year - 11
c.Email
c.Email adds encryption and verified sending to existing Gmail or Outlook addresses, so users can keep their current email address.
Free planExtension7.2Free plan - 12
Proofpoint Email DLP and Encryption
Proofpoint Email DLP and Encryption detects sensitive information in email and attachments to help organizations prevent data loss and automate compliance.
AndroidiOSWebWindows7.1 - 13
Secure Message
Secure Message is a self-hosted inbound email gateway that filters incoming mail before it reaches an existing mail server.
Free planWebLinuxSelf-hosted7.1From $690 a year - 14
Mimecast Secure Messaging
Mimecast Secure Messaging helps organizations protect sensitive information sent by email, including financial records and customer data.
AndroidiOSWebmacOS6.9 - 15
Microsoft Exchange Online
AndroidiOSWebmacOS6.9 - 16
Trustifi Outbound Shield
Trustifi Outbound Shield scans outgoing email against administrator policies and automatically encrypts messages containing sensitive information.
WebAPIExtensionmacOS6.7 - 17
PDF Postman
PDF Postman is a Windows Outlook add-in that turns email messages and attachments into password-protected PDFs for sending.
Windows6.6$69.99 one-time - 18
Encryptomatic OpenPGP
Encryptomatic OpenPGP is a Windows application for encrypting and signing messages and files, with Outlook integration.
Windows6.5From $29.99 a year - 19
Sophos Secure Message
Sophos Secure Message is part of Sophos Email, a cloud service that protects inboxes from phishing, business email compromise, spam, and email-delivered malware.
Web6.5 - 20
Paubox Email Encryption
Paubox Email Encryption is a web service for secure email delivery, presented for healthcare.
Web6.3From $29 a month - 21
RMail
WebWindowsmacOS6.2 - 22
OpenText Core Email Encryption
OpenText Core Email Encryption automatically protects outbound email to help safeguard sensitive information and support compliance requirements.
Web6.2 - 23
GPG Suite
GPG Suite is a macOS collection for encrypting, decrypting, signing, and verifying files or email.
macOS6.2€24 one-time - 24
Symantec PGP Gateway Email Encryption
WebLinuxSelf-hostedWindows6.2 - 25
Cryptshare.express
Cryptshare.express is a web service for sending attachments through a secure delivery portal.
Web6.1