About
Thunderbird is a privacy-focused email app that lets you manage multiple email accounts from a single interface with an optional Unified Inbox. Built on open-source technology and funded entirely by user contributions, it never collects or sells your personal data and contains no ads. The app works with IMAP and POP3 protocols, supporting Gmail, Outlook, Yahoo Mail, iCloud, and other providers. You can encrypt messages using OpenPGP email encryption with the OpenKeychain app, choose custom sync intervals, and search emails locally or on the server. Thunderbird has been a trusted email client for over 20 years and is now available on Android with support for more than 20 languages.
Highlights
- Unified Inbox to manage multiple email accounts in one app
- OpenPGP email encryption support via OpenKeychain app
- Works with IMAP and POP3 protocols including Gmail, Outlook, Yahoo Mail, and iCloud
- Fully funded by user contributions with no ads or data collection
- Customizable sync options: instant, scheduled intervals, or on-demand
- Local and server-side search to find important messages
Best for
People managing multiple email accounts who want a privacy-respecting alternative to webmail and commercial email apps, and users seeking OpenPGP encryption for sensitive email communication.
At a glance
Thunderbird: Free Your Inbox is available on Android, Windows, macOS, and Linux — all free to download.
It is developed by Mozilla Thunderbird.
Screenshots
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