The Android Open Source Thread

This page summarizes the projects mentioned and recommended in the original post on /r/opensource

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  • brave-browser

    Brave browser for Android, iOS, Linux, macOS, Windows.

    Brave: Gplay || Github

  • FairEmail

    Fully featured, open source, privacy friendly email app for Android

    FairEmail: Gplay || F-droid || GitHub

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  • InboxPager

    An E-mail client for the Android platform. Imap, pop, and smtp via SSL/TLS, with AES/PGP support.

    Inbox Pager: F-droid || GitHub

  • KeePassDX

    Lightweight vault and password manager for Android, KeePassDX allows editing encrypted data in a single file in KeePass format and fill in the forms in a secure way.

    KeepassDX: Gplay || F-droid || 1. GitHub

  • mobile

    The mobile app vault (iOS and Android). (by bitwarden)

    Bitwarden: Gplay || GitHub

  • S.S.E: Gplay || F-droid || Gitlab

  • TextSecure

    A private messenger for Android.

    Signal: Gplay || GitHub

  • WorkOS

    The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  • element-android

    A glossy Matrix collaboration client for Android.

    Element: Gplay || F-droid || GitHub

  • wire-android

    🤖 The new Wire client for Android

    Wire: Gplay || F-droid || GitHub

  • mullvadvpn-app

    The Mullvad VPN client app for desktop and mobile

    Mullvad: Gplay || F-droid || GitHub

  • Metro

    Best material design music player for Android (by MuntashirAkon)

    Metro: F-droid GitHub

  • VinylMusicPlayer

    A material designed music player for Android

    Vinyl: F-droid || GitHub

  • Music-Player-GO

    🎶🎼 Very slim music player 👨‍🎤 100% made in Italy 🍕🌳🌞🍝🌄

    Music player go: Gplay || F-droid || GitHub

  • Joplin

    Joplin - the secure note taking and to-do app with synchronisation capabilities for Windows, macOS, Linux, Android and iOS.

    Joblin: Gplay || GitHub

  • app

    Think fearlessly with end-to-end encrypted notes and files. For issues, visit or

    Standard notes: Gplay || GitHub

  • Piwigo-Android

    Piwigo Native Android App

    Piwigo: Gplay || F-droid || GitHub

  • notesnook

    A fully open source & end-to-end encrypted note taking alternative to Evernote.

    Regarding your notes apps, I may be mistaken but I don't believe Obsidian is open source. That being said, Notesnook is not only open source, but also E2EE with a very generous free plan and self-hosting on the horizon. Very solid cross-platform application with. The dev is also very active and responsive on Twitter/Mastodon. 🍻

  • fluffychat

    For Chat messages I like Fluffy Chat! Then I'm useing Florisboard as keyboard. It's my daily driver since 1+ year!

  • FlorisBoard

    An open-source keyboard for Android which respects your privacy. Currently in early-beta.

    For Chat messages I like Fluffy Chat! Then I'm useing Florisboard as keyboard. It's my daily driver since 1+ year!

  • Android-Password-Store

    Android application compatible with ZX2C4's Pass command line application

    Password manager -Android-password-store (client for pass)

  • nextdns

    NextDNS CLI client (DoH Proxy)

    Privacy & Security: - ScrambledEXIF - ExifEraser - TTS Util - Léon – The URL Cleaner - Greentooth: Auto-disable bluetooth when disconnected - PrivacyBlur - Rethink: DNS + Firewall - Tracker Control - Netguard - NextDNS

  • SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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