Thunderbird

Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

About Thunderbird

Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

Key features

Free and Open Source

Thunderbird is completely free to use and its source code is open to the public, allowing for community-driven development and transparency.

Customization

The application supports a variety of extensions and themes, enabling users to personalize their email client according to their preferences.

Cross-Platform

Thunderbird is available on multiple operating systems including Windows, macOS, and Linux, providing flexibility for users on different platforms.

Robust Security

Thunderbird offers strong security features such as built-in phishing protection, spam filters, and support for S/MIME and OpenPGP for encrypting email messages.

Integrated Calendar

The Lightning extension allows for efficient scheduling and includes calendar features directly within the email client.

Alternatives to consider

Community ratings & full list

Gmail

Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.

Spark Mail

Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues.

Zoho Mail

Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs. .

Mail-in-a-box

Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.

ProtonMail

Secure email with absolutely no compromises. Get your free encrypted email account today.

Microsoft Outlook

Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

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