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Signal-Android - A private messenger for Android, alternative to WhatsApp
Signal is a messaging app for simple private communication with friends. Signal uses your phone's data connection (WiFi/3G/4G) to communicate securely, optionally supports plain SMS/MMS to function as a unified messenger, and can also encrypt the stored messages on your phone.
chat instant-messaging im secure-chat whatsapp-alternativeXabber - XMPP client for Android
Xabber is the most popular open-source XMPP client for Android. It supports multiple XEPs, Off-The-Record (OTR) chat encryption and is available in multiple languages. Xabber is standards compliant and secure, supporting a vast number of XMPP extensions and services. It is compatible with all standard XMPP servers. Ejabberd, Prosody, Operfire, etc.
xmpp-client xmpp otr chat mobile messenger xabber secure-chatSignal - Secure Messaging
Signal sends high-quality group, text, voice, video, document, and picture messages anywhere in the world. Signal messages and calls are always end-to-end encrypted and painstakingly engineered to keep your communication safe.
chat messaging collaboration secure-chat im privacyTox - The future of online communications.
With the rise of government surveillance programs, Tox, a FOSS initiative, aims to be an easy to use, all-in-one communication platform that ensures full privacy and secure message delivery. Tox must use UDP simply because hole punching with TCP is not as reliable. However, Tox does use TCP relays as a fallback if it encounters a firewall that prevents UDP hole punching.
chat instant-messaging im secure-messaging screen-sharing video-calls file-sharing secure-chat crypto encryptionGitter - Community for Software Developers
Gitter is designed to make community messaging, collaboration and discovery as smooth and simple as possible. You can easily create, organise and grow your communities, inviting others to join just in one click. Gitter is an instant messaging and chat room system for developers and users of GitHub repositories. Gitter is similar to IRC and Slack. Unlike IRC, and like Slack, it automatically logs all messages in the cloud.
chat instant-messaging im slack-alternative secure-chatRiot - Messaging and Colloboration made easy
Riot is built on top of Matrix. Matrix is an open network for secure, decentralized communication delivering a community of users,bridged networks, integrated bots and applications plus full end-to-end encryption. Riot allows teams to communicate across a wide range of collaboration apps. If some team members use Riot while others use IRC, Slack or Gitter, Riot will allow these team members to seamlessly work together. Riot offers the richest network of communication bridges.
instant-messaging chat secure-chat mobile-apps group-chat colloboration voip video-conferenceChatSecure - Encrypted chat client for iOS and Android
ChatSecure is a instant messaging client for iOS and Android that integrates encrypted OTR ("Off the Record") messaging support from the libotr library and the XMPPFramework to handle Jabber/GTalk (XMPP).
instant-messaging chat secure-chat im-client jabber xmpp mobile-appsGajim - A fully-featured XMPP client
Gajim is a fully-featured XMPP client. It is decentralized messaging platform, Connect to your contacts using a server of your choice. Share pictures, videos, and files with friends and groups. It is end-to-end encrypted, Chat securely using OMEMO, PGP, or OpenPGP.
xmpp-client jabber messaging instant-messaging chat secure-chatElement - Secure and independent communication, connected via Matrix
Element is a messaging app that lets you chat securely with your family and friends. The communication is default end-to-end encrypted, cross-signed device verification and decentralisation to choose who you trust with your data. Element is unique. You own your data and decide where it lives. Element lets you talk securely to anyone, regardless of their app. It supports unlimited voice, video and messaging. It is built on Matrix.
messaging secure-chat chat communication video-call voip matrix conference group-chat instant-messaging im slack-alternativeFosscord - Free open source selfhostable discord compatible chat, voice and video platform
Fosscord is a free and open source software compatible with Discord. It's a chat, voice and video platform similar to Slack and Rocket.chat. Fosscord is end-to-end encrypted based on the concept “don’t trust the server”. It is Self-hosted, Secure, Decentralized, Privacy focused, Extendable.
chat video-chat instant-messaging secure-chat discord discord-alternative self-hostedNebulaChat - Open source mtproto server written in golang with compatible telegram client
NebulaChat is an open source mtproto server written in golang with compatible telegram client. mproto protocol is designed for access to a server API from applications running on mobile devices.
chat telegram microservice server grpc mtproto im telegram-server mtproto-server chatengine nebula-chat secure-chat messaging-app messaging instant-messengarCryptocat - Encrypted Chat
Cryptocat is free software that aims to provide an open, accessible Instant Messaging environment that encrypts your conversations and works right in your browser. It uses the OTR protocol over XMPP for encrypted two-party chat and the (upcoming) mpOTR protocol for encrypted multi-party chat.
chat secure-chat cryptography security privacy im-client instant-messagingOff-the-Record Messaging Provides Private Conversations Over IM
Off-the-Record (OTR) Messaging allows you to have private conversations over instant messaging by providing encryption, authentication, deniability, and perfect forward secrecy. If you lose control of your private keys, no previous conversation is compromised.
chat secure-chat cryptography security privacy im-client instant-messagingConversation - Instant Messaging for Android
Conversations is the instant messaging client for the Android. It supports XMPP, Jabber client, Encryption. It supports to send and receive images as well as other kind of files, Pictures / Avatars for your Contacts, Syncs with desktop client, Share your location, Send voice messages, Multiple accounts / unified inbox and lot more.
instant-messaging chat secure-chat im-client jabber xmpp mobile-apps messenger0fc - End-to-end discreet web chat with strong cryptography
0fc enables you to run a secure in-browser group chat with isolated chatrooms. Server is considered minimal trusted zone, all important operations happen on client side. Ephemeral keys used to protect chat room traffic are generated within room owner's browser and propagated to the rest. It is built on top of built on top of Themis crypto library.
chat chat-server secure-chat web-chat instant-messagingDarkwire.io - End-to-end encrypted instant web chat
Simple encrypted web chat. Powered by socket.io, the web cryptography API. This project is an example of how client side encryption works and how you can integrate it as a chat service. Darkwire server is a Node.js application that requires redis. The Darkwire.io web client is written in JavaScript with React JS and Redux. It uses a combination of asymmetric encryption (RSA-OAEP), symmetric session keys (AES-CBC) and signing keys (HMAC) for security.
chat chat-room cryptography privacy encryption chatroom socket-io anonymous-users chat-application end-to-end-encryption im instant-messaging secure-chatMolly - A fork of Signal for Android with passphrase lock
Molly is a hardened version of Signal for Android, the fast simple yet secure messaging app by Signal Foundation. Back in 2018, Signal allowed the user to set a passphrase to secure the local message database. But this option was removed with the introduction of file-based encryption on Android. Molly brings it back again with additional security features.
chat instant-messaging im secure-chat signal-alternative signalSimpleX Chat - Decentralized chat with a focus on users’ privacy
The world's most private and secure chat - open-source, decentralized, and without global identities of any kind. You can use it from the terminal UI, with all contacts and groups in one window. It is a federated chat system with end to end encryption support and low risk of man in the middle attack.
chat im instant-messaging secure-chat privacy protocol decentralized flutter encryption double-ratchetChat.onion - Anonymous and fully encrypted peer-to-peer instant messenger for Android using onion routing (via Tor)
Chat.onion is an anonymous and fully encrypted peer-to-peer instant messenger for Android using onion routing (via Tor). Many instant messengers already use encryption to secure message contents, but they can't hide important metadata such as your IP address and who you are communicating with. To hide all your information, including your metadata, identity, and IP address, Chat.onion uses onion routing (Tor) to send each message over several randomly selected proxy servers. Multiple layers of encryption are used to ensure that each proxy only knows it's immediate successor and predecessor, but not the entire message route.
chat instant-messaging im secure-chat p2p
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