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Preview of Mailvelope

Mailvelope by Mailvelope GmbH

Protect your email conversations and attachments on Gmail, Nextcloud, Outlook and more with PGP and end-to-end encryption.

4 (125 reviews)4 (125 reviews)
24,989 Users24,989 Users
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About this extension
➡️ Email encryption for individuals & businesses

Mailvelope enables PGP for a wide range of webmail services, providing secure end-to-end encryption for emails and attachments. It can be used as a free solution for private users and as an enterprise-grade tool for organizations requiring enhanced security and compliance.

➡️ Mailvelope Business – Advanced encryption for organizations

For businesses and large teams, Mailvelope Business provides an encryption solution with enhanced features and premium support. In order to sign up for Mailvelope Business, visit our website after downloading the extension. Mailvelope Business is currently available for Nextcloud and Google Workspace. Mailvelope Business for Outlook on the Web is coming soon.

➡️ Mailvelope for You – Secure emails on almost any provider

Mailvelope's free version enables private users to encrypt their emails on nearly all webmail providers, including Gmail, Outlook, Nextcloud, Yahoo, and many more. Through our partnerships with WEB.DE, GMX, and Posteo, Mailvelope offers deep integration into their webmail services. With an intuitive interface and seamless browser integration, Mailvelope makes OpenPGP encryption accessible to everyone.

Key features:

✅ End-to-end encryption – Encrypt emails directly in your browser before they leave your outbox. Only you and your recipient can read them.

✅ Works with major webmail providers – Compatible with Gmail, Yahoo, Outlook.com, and self-hosted webmail clients like Roundcube.

✅ Mailvelope Business – Secure email encryption for businesses, ensuring compliance with strict data privacy regulations.

✅ Mailvelope key server – A managed and protected key server, simplifying PGP key distribution and verification.

✅ User-friendly & seamless integration – Mailvelope integrates smoothly into your workflow, making encryption simple for everyone.

✅ Secure key management – Your private encryption keys are stored securely on your device, never exposed to third parties.

✅ GDPR & compliance ready – Protect confidential business emails and meet privacy and data protection requirements.

✅ Open source & transparent – Mailvelope's code is publicly available for security audits and community contributions.

🚀 Get started today:

🔗 Website: mailvelope.com
🔗 Source code: github.com/mailvelope/mailvelope
🔗 Security audits: github.com/mailvelope/mailvelope/wiki/Security
🔗 Follow us: x.com/mailvelope
Rated 4 by 125 reviewers
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Permissions and dataLearn more

Required permissions:

  • Access browser tabs
  • Access browser activity during navigation

Optional permissions:

  • Exchange messages with programs other than Firefox
  • Access your data for all websites
More information
Add-on Links
  • Homepage
  • Support site
  • Support Email
Version
6.1.0
Size
3.19 MB
Last updated
3 months ago (May 19, 2025)
Related Categories
  • Privacy & Security
License
GNU General Public License v3.0 only
Privacy Policy
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Version History
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Release notes for 6.1.0
  • Migrate Firefox add-on to manifest v3
  • Support for displaying encrypted subject lines in the email content area
  • Reactivate password cache (temporarily disabled in v6.0)
  • Disable sign-only button in editor email contains attachments
  • Fix sign-only function in the editor when using GnuPG keyring
  • Fix GnuPG keyring not available after service worker shutdown
  • Replace node-sass with dart-sass
  • [Security] Replace Angular v1 component for recipient input with React component based on react-tag-input
  • [Security] Update Bootstrap to 4.6.2
  • [Security] Deprecate client-API settings container (keyring.createSettingsContainer())
  • [Security] Remove dead code in mvelo.storage that is vulnerable to prototype pollution
  • [Security] Fix weak validation of WKD blocklist
  • [Security] Improve key type validation during key import
  • [Security] Deactivate demo.mailvelope.com site in default authorized domain list
  • [Security] Update OpenPGP.js to 5.11.3
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