Best Alternatives to Thunderbird

Looking for Thunderbird alternatives? Here are the best free software options with similar features and functionality.

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Thunderbird

Free and Open-Source Email Client for Desktop

4.6
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Free Alternatives (7)

Firefox

Free, open-source web browser from the non-profit Mozilla

Internet4.7

Brave Browser

Privacy-focused browser that blocks ads and trackers by default

Internet4.7

Tor Browser

Browse the web anonymously through the Tor network

Internet4.6

Waterfox

A private Firefox-based browser with no telemetry and real interface control

Internet4.6

Vivaldi

A deeply customizable browser with mail, calendar and tab tools built in

Internet4.8

Midori

A lightweight, privacy-first browser with built-in ad blocking and zero telemetry

Internet4.5

Chromium

The open-source browser project behind Chrome, Edge, Brave and more

Internet4.7