Showing 25 open source projects for "privacy"

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  • 1
    Signal

    Signal

    A private messenger for Android

    Signal-Android is the official open-source Android client for Signal, a secure messaging app focused on end-to-end encryption and privacy. Developed by the Signal Foundation, it enables private messaging, voice, and video calls, without storing user data. Signal uses the Signal Protocol for encryption and does not collect metadata, making it one of the most privacy-focused communication platforms available.
    Downloads: 10 This Week
    Last Update:
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  • 2
    Sideband

    Sideband

    LXMF client for Android, Linux and macOS to communicate with people

    Sideband is a privacy-focused, peer-to-peer mesh messaging protocol and platform that allows users to communicate directly over local networks or the internet without servers. It emphasizes metadata resistance and secure message delivery, working effectively in offline, low-bandwidth, or disaster recovery scenarios. Built-in Rust, Sideband supports encrypted group messaging, file transfers, and network self-discovery.
    Downloads: 22 This Week
    Last Update:
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  • 3
    Tutanota

    Tutanota

    Open source email service with a strong focus on security and privacy

    Tutanota is an open source email client focused on security and privacy. It is built with end-to-end encryption and 2FA, so you can be assured of utmost email security. Tutanota is always encrypted, so whether you’re using their secure webmail client, mobile apps or desktop clients, you can be sure to communicate securely.
    Downloads: 13 This Week
    Last Update:
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  • 4
    Session for Android

    Session for Android

    A Decentralized, Onion Routed, Private Messenger

    ...The Android client integrates seamlessly with Android’s notification system and background services so that you can stay connected without exposing your identity or compromising privacy, and it supports features such as message reactions, search within chats, profile and contact management, and local message storage encrypted at rest.
    Downloads: 35 This Week
    Last Update:
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  • 5
    Meshenger

    Meshenger

    P2P Voice/Video phone App for local networks

    ...It facilitates direct communication using QR codes or IP addresses, bypassing the need for any central infrastructure or account registration. Meshenger is particularly suited for emergency scenarios, privacy-focused users, and mesh networks where conventional communication tools fail. It emphasizes minimalism, transparency, and full decentralization.
    Downloads: 7 This Week
    Last Update:
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  • 6
    PairDrop

    PairDrop

    PairDrop, Transfer Files Cross-Platform

    PairDrop is a self-hosted, open-source alternative to Apple's AirDrop, allowing users to share files between devices over the same local network without the need for an internet connection.
    Downloads: 82 This Week
    Last Update:
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  • 7
    Proton Mail for Android

    Proton Mail for Android

    Proton Mail Android app

    ...Because ProtonMail’s service never sees unencrypted content, the Android client performs necessary encryption and decryption on the device, aligning with Proton’s privacy-first philosophy and open-source security model.
    Downloads: 13 This Week
    Last Update:
    See Project
  • 8
    ReadYou

    ReadYou

    An Android RSS reader presented in Material You style

    ReadYou is a modern, open-source RSS reader for Android focused on minimalism, usability, and privacy. It supports standard RSS/Atom feeds, OPML import/export, and allows for offline reading. Built with Jetpack Compose, ReadYou offers a polished and intuitive user experience without background sync or data tracking.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 9
    Tox

    Tox

    A New Kind of Instant Messaging

    Tox is a peer to peer (serverless) instant messenger that focuses on security and privacy. In today's world where digital surveillance is rampant, Tox offers users a communication software alternative that's free from prying eyes and ears, and is, quite literally free and without advertising. Tox comes with all the great features you'd expect from an instant messenger application, including voice calls, video calls, file sharing and screen sharing.
    Downloads: 12 This Week
    Last Update:
    See Project
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  • 10
    Bitchat

    Bitchat

    Bluetooth mesh chat, IRC vibes

    BitChat is a decentralized, peer-to-peer encrypted messaging app built by Jack Dorsey’s Permissionless Tech. It uses Bluetooth Low Energy mesh networking to relay messages without internet, servers, accounts, or phone numbers. Messages are end-to-end encrypted (Curve25519 + AES‑GCM) and the app includes a panic mode to erase data quickly.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 11
    Element Android

    Element Android

    A glossy Matrix collaboration client for Android

    ...A total rewrite of Riot-Android, Element is an all-in-one secure chat app made possible through the open global Matrix network. It is a messenger that allows users to talk to anyone regardless of their app, while providing unparalleled privacy and security. It protects conversations from data-mining and ads with proper end-to-end encryption, so you can feel totally secure. Element is used by millions all over the world for their business, organizations, and even for personal and home use. It is part of the Matrix ecosystem, which is an open network for secure, decentralised communication governed by The Matrix.org Foundation.
    Downloads: 4 This Week
    Last Update:
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  • 12
    DefraDB

    DefraDB

    DefraDB is a Peer-to-Peer Edge Database

    ...It's the core data storage system for the Source Network Ecosystem, built with IPFS/IPLD, LibP2P, CRDTs, and Semantic web3 properties. DefraDB is a user-centric database that prioritizes data ownership, personal privacy, and information security. Its data model, powered by the convergence of MerkleCRDTs and the content-addressability of IPLD, enables a multi-write-master architecture. It features DQL, a query language compatible with GraphQL but providing extra convenience. By leveraging peer-to-peer networking it can be deployed nimbly in novel topologies. ...
    Downloads: 3 This Week
    Last Update:
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  • 13
    Jitsi Meet

    Jitsi Meet

    Secure, simple and scalable video conferences application

    ...Head over to meet.jit.si and see the service in action before you decide whether you’d like to run your own instance. For those interested, check out the meet.jit.si terms of service and privacy policy. Yep, it’s free — and it’s technologically advanced, too. In fact, Jitsi Meet sounds better, thanks to HD audio with Opus; is anonymous, no need for an account, ever! It also keeps conversations private with encryption by default (and advanced security settings) and is developer-friendly, modify and customize it to your heart’s content. ...
    Downloads: 2 This Week
    Last Update:
    See Project
  • 14
    SyntroSend

    SyntroSend

    Secure P2P file transfer app for Windows, Mac, Linux & Android

    SyntroSend is a fast, secure, and privacy-focused peer-to-peer (P2P) file transfer application available for Windows, macOS, Linux, and Android. It enables direct device-to-device file sharing without relying on cloud storage or third-party servers, ensuring maximum privacy and speed. Built on modern P2P networking technology, SyntroSend allows users to transfer files locally over the same WiFi network or globally through encrypted tunnels.
    Downloads: 20 This Week
    Last Update:
    See Project
  • 15
    BChat

    BChat

    A privacy messenger on Beldex that doesn't require a phone number.

    BChat is a privacy messenger built on the Beldex blockchain, that ensures true anonymity by requiring no phone number, email, or personal identity to create an account. It offers unparalleled metadata protection by onion-routing messages through global masternodes, ensuring they remain private and uncensorable.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    bitchat

    bitchat

    bluetooth mesh chat, IRC vibes

    bitchat is a decentralized peer-to-peer messaging app that operates over Bluetooth mesh networks, enabling local group chats without the need for internet, servers, or phone numbers. It is designed with privacy and security in mind, offering encrypted private messages and channels alongside a public local chat that requires no registration.
    Downloads: 33 This Week
    Last Update:
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  • 17
    Simple SMS Messenger

    Simple SMS Messenger

    An easy and quick way of managing SMS and MMS messages without ads

    A great way to stay in touch with your relatives, by sending both SMS and MMS messages. The app properly handles group messaging too, just like blocking numbers from Android 7+. Keep in touch with all of your contacts using the messaging app on your phone. It's never been easier to share photos, send emojis, or just say a quick hello. There's so much you can do with your messages, like mute conversations or assign special message tones for certain contacts. With this text message and group...
    Downloads: 3 This Week
    Last Update:
    See Project
  • 18
    Sandesh: Find your community

    Sandesh: Find your community

    Home grown, community messaging platform

    ...Real-Time Messaging: Engage in personal chats, exchange ideas, and build relationships with like-minded individuals. 4. Secure and Reliable: Sandesh prioritizes privacy and data security for a trustworthy experience. Sandesh plans to continuously improve and enhance the platform based on user feedback. Future updates will introduce new features, community enhancements. Support: pranjalbarn@gmail.com
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Metis Messenger

    Metis Messenger

    Secured blockchain group messaging

    We’re all familiar with using our favorite chat apps and we often just assume we can trust them with our personal information. It’s not until our private life is compromised do we suddenly reconsider how we’re doing things. Next-generation chat application Metis improves your privacy by defaulting to locally encrypt all communications before sending any message. With Jupiter Metis, you always have the power over your privacy and what, if anything, is shared. No central servers store any information about you, your account, or conversations. There’s no signup required and participating in group chats is as simple and secure as it gets. ...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    Riot Android

    Riot Android

    A glossy Matrix collaboration client for Android

    ...It integrates tightly with Android’s native platform capabilities, offering background sync, push notifications, and account management while keeping user cryptographic keys secure on the device for privacy. Users appreciate Riot’s ability to join public or private communities hosted across different Matrix servers, making it useful for both personal and organizational communication with interoperability at its core.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    go-textile

    go-textile

    Infrastructure for building composable apps and services on the IPFS

    ...Please let us know immediately if you have discovered a security vulnerability. Textile is a set of tools and trust-less infrastructure for building censorship-resistant and privacy-preserving applications. While interoperable with the whole IPFS peer-to-peer network, Textile-flavored peers represent an additional layer or sub-network of users, applications, and services.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 22
    Mushrooms

    Mushrooms

    See you and your friends on a map

    ...) - Build groups, all group members see each other automatically. - No registration, no installation, no spyware. - Advanced: Tracks, routing (planned). It's about privacy. Reclaim the internet from authorities and companies!
    Downloads: 2 This Week
    Last Update:
    See Project
  • 23
    HookMeApp

    HookMeApp

    Meet Talk Share Do...mobile social networking.

    HookMeApp is mobile social networking that gives you back control over your privacy. Choose the level of exposure for your profile between personal, local or global area networks. Use it socialise with people right next to you on the other side of the world.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    MeetVap

    MeetVap

    Open-source messaging, ready for real communication

    MeetVap is a fully functional messaging and calling platform for iOS, Android, and the web, with private and group chats, voice and video calls, stories, file sharing, privacy controls, and self-hosting support.
    Downloads: 0 This Week
    Last Update:
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  • 25

    RumbleDown

    Unifying communication flows to one point

    ...The hope is also to break up non-open fluxes to enable a truly single-point access. Don not forget: in the future some sort of encryption will be called upon to protect user data and privacy. At that time we will have to address the necessary controls issues. For the start up that will not be a problem. The sooner we get to having to cross that bridge, the better.
    Downloads: 0 This Week
    Last Update:
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