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thunderbird-androidThunderbird for Android – Open Source Email App for Android (fka K-9 Mail)

Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)

13,423 stars
2,727 forks
Kotlin
Apache-2.0
android
communication
email
mozilla
thunderbird-android screenshot

thunderbird-android

Thunderbird for Android is a powerful, open-source email app that lets you manage multiple email accounts from a single interface with privacy as a core principle. Built on the proven foundation of K-9 Mail and supported by the Mozilla community, it delivers a feature-rich email experience without treating your data as a product.

Key Features

  • Unified Inbox: Manage multiple email accounts in one view for streamlined productivity
  • Open Source: Built on transparent, community-driven technology licensed under Apache 2.0
  • Privacy Focused: Your personal data is never monetized or sold as a product
  • Multi-Platform Distribution: Available on Google Play, F-Droid, and GitHub for flexible installation options

Use Cases

  • Multi-Account Management: Consolidate work, personal, and other email accounts in a single app
  • Privacy-Conscious Users: Access secure email without compromising personal data to advertisers
  • Open Source Contributors: Review, fork, and contribute to a well-documented codebase written in Kotlin
  • Custom Deployments: Deploy tailored versions with custom OAuth configurations for organizational needs

Who Is It For

Thunderbird for Android is ideal for users who prioritize privacy and open-source software, professionals managing multiple email accounts, and developers interested in contributing to community-driven mobile applications. It's suitable for anyone seeking a transparent alternative to mainstream email apps.

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